Tag Archives: sandblasting glass etching

Sandblasted Glass by Bear Glass

Bear Glass provides the service of sandblasting glass.   Sandblasting glass is becoming one of the very popular methods of etching glass.  Sandblasting glass can result in producing the most elegant etching on glass.   There are various techniques used in sandblasting glass that can create works of art as a finished product.  Sandblasting glass creates beautiful frosted and carved designs in glass.  Sandblasting has a bunch of functions.

It can be used to soften rough surfaces,roughen soft surfaces,take off unwanted surfaces,or shape a surface.   Items as small as a pendant and as large as front doors can be sandblasted.  The technique takes practice and the right tools,plus a delicate touch if you’re etching glass.  Bear Glass specializes in equipment for decorative sandblasting.  Whether you’re blasting trophies or decorative art glass,you can count on Bear Glass to have the answers you need.   We are happy to assist you in assembling a complete system,including all the small accessories.   We can help you match what equipment you need with equipment you already have.   With Bear Glass,you get the industry’s best-priced sandblasting systems supported by lifetime technical assistance.

Sandblasting can be used for interior fixtures like shelves,tables,and more. S andblasting is done with a high speed machine that bombards the glass panel with sand,walnut husks or other materials.  Sandblasting glass offers versatility in creating design effects. First,homeowners can choose a level of glass opaqueness from light,medium or heavy.  Also,sandblasting makes it possible to “frost” sections of a glass shower,such as creating privacy strips or patterns.  Sandblasting glass is also known as sandcarving.  This method allows a greater control method to produce the highest quality work.

The process of sandblasting glass uses the same steps of producing any etching stencil but the material usually needs to be thicker to withstand the pressure of abrasive blasting as sandblasting glass does.   The sandblasting glass method takes place by blasting abrasive from the sandblaster over the stencil resist material.  This is all powered by the supplied air from the air compressor.   The glass becomes eroded to create a frosted elegant design.

In the world of Sandblasted Glass there are two techniques,etching and carving.  Etching is when abrasive is blasted at the glass lightly to give the glass a frosty appearance.  Depending on the speed and angle the abrasive is being applied,different shades can be created,allowing the glass to be a true work of art.  Carving on the other hand is when steadily sandblasting is done to the surface of a glass using stencil which protects the areas you don’t want to be carved out.  Sandblasting as a technique for carving can be much nuanced,with differing depths and angles of cuts creating an array of lighting effects that may be quite beautiful.
We also do CustomSandblasted Glass.
Call Bear Glass today for yourSandblasted Glass needs.

For more information on our Sandblasted Glass please contact Bear Glass at:

FACTORY/ OFFICE

Address:

Bear Glass Inc.

399 20th Street

Brooklyn,NY 11215

Phone: 718-832-3604

Fax: 718-832-0786

E-mail: bearglass@yahoo.com

If you are in New Jersey:

Bear Glass New Jersey

359 Essex Road

Tinton Falls New Jersey 07753

P: 732 901 2626

F: 732 901 2266

E: Sales@BearGlassNJ.com

Glass Table Tops by Bear Glass

Bear Glass is the 4th generation family business specializing in Custom Glass Tables.  Bear Glass has always led the way in design ideas and styles. Our custom glass tables are matching materials.  Whatever we are making: Glass coffee tables, console glass, etc. offer a sense of peace and harmony.  They will quickly or office a sense of peace and harmony. They will quickly become the focus of your home decor, adding elegance and a special.

Need a Glass Table Top?  You’ve come to the right place.  Here at Bear Glass, we have the capability to custom cut, bevel, polish, and temper your glass at our manufacturing plant in New Jersey.  This ensures a perfectly customized fit, gives you the opportunity to choose the glass type you want, and gets it delivered to you in record time for home and office needs.

Whether it’s for a glass table top replacement, glass table top cover, or a table design of your own, the steps for customizing your glass table top are the same.  Our Glass Table Tops are custom manufactured, which means that all pieces can be to your specification.  Bear Glass offers the finest furniture quality glass with edges and corners expertly polished.  Bear Glass is America’s leading supplier to hotels, restaurants, and designer showrooms.  We expertly pack each product to ensure safe arrival.

If you have a base made of cement columns, tubular steel, or something that is designed to hold a piece of glass on top of it, you will need a glass table top.  Glass table tops are designed to hang over edges and span small distances with no support.  Glass Table Tops not only add a sense of elegance, they also have very useful purposes.  Glass Table Tops by Bear Glass protect your furniture from nicks, scratches, and other possible damages.  It refreshes older pieces with a less permanent option, as compared to stains or paint.  The glass is simply beautiful; a glass top is an excellent way to add shine to an otherwise dull item.

Our Glass Table Tops can also elevate the impact of wood tables or dressers while protecting these investments from scratches, glass rings, sun damage, and even scuffs.  Order one of our Glass Table Tops and complete a table, nightstand, or even a plant stand.  With our Glass Table Tops you are able to renew old glass table inserts with a glass table replacement; outdoor tables are especially vulnerable to damage and weathering.

We have many options for our Glass Table Tops, some of them include:

  • Clear Glass
  • Low-iron glass
  • Acid etched or sand blasted glass
  • Bronze Glass
  • Gray Glass

Why Bear Glass

Edgeworks for all of your glass Whether you need to replace – your holes or would like a custom glass Whether you need to replace – your table tops for your restaurant or home, Bear Glass offers competitive pricing and highest level of quality.

In many different settings, whether they are traditional or contemporary; they tend to fit in to either very well.  We stock many different types glass with a variety of thicknesses and sizes.  We have a unique glass table designs.  Let Bear Glass help to create it from beginning

For more information on our Glass Table Tops please contact Bear Glass at:

FACTORY/ OFFICE

Address:

Bear Glass Inc.

399 20th Street

Brooklyn, NY 11215

Phone: 718-832-3604

Fax: 718-832-0786

E-mail: bearglass@yahoo.com

If you are in New Jersey:

Bear Glass New Jersey

359 Essex Road

Tinton Falls New Jersey 07753

P: 732 901 2626

F: 732 901 2266

E: Sales@BearGlassNJ.com

Bear Glass New Jersey Acid Etched Glass

Bear Glass Is A Premier Walker Distributor. We are better able to serve our customers with 2 facilities located in both Brooklyn NY and Tinton Falls NJ. Our Motto is ” We Do Everything In Glass And Mirror” so we are able to service any and all your glass and mirror needs.

Bear Glass NJ Acid Etched Glass is becoming trendy in design and construction.  The consistency and durability of the finish can reduce glare and reflection, add privacy, increase light transmission, and provide texture.  It is important to select the right acid-etched glass for an application, and avoid making issues during storage and fabrication.  Although the glass-etching process is generally consistent, variations in chemistry and other parameters create different surfaces with distinct visual and performance characteristics.  Glass is etched with an aqueous solution of hydrofluoric acid, which attacks the silica and roughens the glass surface.  Generally, the more ‘white’ or opaque the finish, the more rough and porous the surface is.  When choosing distinctive and unique types of glass, architects and designers often have specific objectives in mind.  With acid-etched glass, these goals can relate to light diffusion, light transmission, privacy, visual appearance, integration with surrounding objects, and energy efficiency through increased day lighting.  An etched surface with rugged peaks and deep valleys absorbs and diffuses light, rather than transmitting or reflecting it- the result is a rich, white, opaque appearance.  In contrast, an etched surface with smooth, rounded bumps enhances light transmission and creates a more transparent glass, characterized by reduced reflective glare and a soft translucent appearance.

Acid-etched Surface Finish

Acid-etched finished vary by manufacturer.  The type selected for a glass substrate renders a different level of opacity and smoothness and creates varied visual effects.  It also impacts performance ratios such as gloss, visible light transmission (VLT), visible light reflectance, shading coefficient, solar direct transmission, solar direct reflectance, and U-value.  The visual effect of the acid-etch finish on mirror varies depending on the extent of etching performed.  A lighter-etched mirror has more reflection whereas a deeper etch creates a matte finish and more depth in the glass.

Glass Substrate

The substrate also influences the color appearance, level of opacity, and performance ratios of acid-etched glass.  Many falsely believe pieces of ultra-clear glass look the same, irrespective of their origin; similarly, glass with a blue tint from manufacturer ABC is often incorrectly perceived to match the one produced by manufacturer XYZ.  Generally, the glass business markets different shades of glass in ultra-clear, green, blue, or black.  In addition, some glass floaters can make varying shades of one color.  For example, acid-etched products manufactured from low-iron glass have a translucent satin appearance without the ‘greening effect’ of ordinary clear glass.  Similarly, a piece of acid-etched glass made with a dark blue hue from one supplier creates a different visual effect than one made with light blue from the same manufacturer.  Consequently, the shade of the acid-etched glass or mirror likely varies among manufacturers, depending on the substrate used.  It is important to remember the acid-etched finish itself creates a different color appearance, with different tints having varying performance ratios.

Etching on both sides

Etching glass on both sides can enhance its characteristics.  This approach is suitable for applications requiring a higher level of opacity or a similar finish and visual effect on both sides of the glass panel (e.g. partitions).  Most glass is produced by the float process.  The raw materials- mainly silica sand, soda ash, and limestone- are melted in a furnace and then flowed onto a bath of molten tin.  The glass then takes form and gradually cools as it moves from the tin bath to a controlled cooling chamber.  Float glass is best etched on the ‘air’ or ‘atmosphere’ side of the sheet, due to the greater likelihood of impurities and surface imperfections on the ‘tin’ side.  Production of acid-etched mirrors and two-sided etched glass requires etching of the tin side, posing an increased risk of defects in the surface if inappropriately done.   When considering double-sided acid-etched glass or acid-etched mirror, the type of finish specified impacts quality.  The manufacturer of the acid-etched product can recommend the finish (if any) suitable for the application.

Exterior applications

Bear Glass New Jersey Acid Etched Glass may be appropriate for exterior applications, such as insulated glazing (IG) units, skylights, and balustrades.  As acid-etching is not a coating, its resistance properties in outside conditions are essentially equivalent to non-etched glass.  However, it is important to note an etched surface with rugged peaks and deep valleys could lead to higher maintenance costs because dirt particles may be harder to remove.  Therefore, the use on an etched surface with a lighter finish (i.e. smooth, rounded bumps) is recommended in exterior applications.  In these situations, the level and type of maintenance required is similar to that of non-etched glass.

Storage and Fabrication

If proper care is taken during storage and fabrication, acid-etched glass or mirror can be kept clean as easily as non-etched products.  Whether the glass is tempered, laminated, insulated, painted, or even bent, fabricators can preserve the quality of the final product.  However, the general suggestions for keeping acid-etched glass or mirror stain-free during storage and fabrication may not be suitable in all situations.  Fabricators should follow guidelines issued by the manufacturer of a particular product to prevent or fix any marks or stains that occur.

Storage

Proper storage practices can help avoid marking on acid-etched glass and mirror.  Storage spaces must be dry and adequately ventilated.  Sheets should not be stored in areas of high humidity or heat (e.g. places near steam or water pipes).  Spaces exposed to chemical fumes should also be avoided.  All these conditions promote staining.  Conversely, sheets should not be stored outdoors or in unheated areas.

Fabrication

Due to the particular characteristics of more rugged glass surfaces, extra care should be taken during their fabrication to minimize the likelihood of embedding grease or dirt into the surface.  Gloves must always be used when working with sheets.  When handling sheets using equipment with suction cups, the clean and dust-free cups should be applied to the flat, untreated side.  If this is impossible, care should be taken to ensure proper vacuum is achieved (i.e. testing must be done to be certain the cups ‘stick’ to the glass to handle to weight).  When edging glass, these practices should be followed:

  1. The edging machine conveyors should be clean and free of grease and buildup of glass grindings or cerium oxide.
  2. The conveyor must be regularly opened and the machine interior washed (particularly the brushes) using soapy water.
  3. The front and back conveyor pads should be routinely brushed, until all traces of cerium oxide and glass grindings are removed.
  4. The front and back conveyors must be synchronized at identical speeds.
  5. Only coolants specifically recommended for glass grinding and that adhere closely to the manufacturer’s recommended dilution ration should be used.
  6. Manufacturer guidelines for concentration levels must be followed when using cerium oxide, with care taken to never add more than the minimal amount necessary for good polishing.
  7. Glass should be washed immediately after polishing.  Washer brushers with .36-mm (0.014-in) diameter nylon bristles offer the best results.  The glass washer should be equipped with one pair of upper and lower brushes for every 0.6m (2ft) per minute of travel- for example, a machine operating as a speed of 1.8m (6ft) per minute should have three pairs of brushes.  (This guideline is only applicable to regular float glass and not to coated products such as low-emissivity [low-e] glass).
  8. As an extra precaution, wetting the glass surface immediately before polishing greatly reduces the risk of marking.

Writing the Right Specifications

Architects and designers constantly look to Bear Glass for new ways to use glass in exterior and interior applications.  Writing proper specifications, especially when distinctive and unique types of glass are chosen, is critical to ensure the desired design is achieved.  Acid-etched glass is no exception.  If care is not taken, the glass ordered and installed on the jobsite may be nothing like the product selected based on samples submitted.  To ensure the acid-etched glass products selected are actually used by the general contractor, glass fabricator, and glazier, the following information should be included in the specifications: name of manufacturer, product brand name, glass thickness, substrate (glass or mirror), tint (e.g. clear, ultra-clear, blue, green, black, bronze, grey), type of finish (name), and whether to etch on one or two glass faces.  Warranties and standards are often overlooked when writing specifications.  Inherent in the float glass process are small gaseous inclusions and minor abrasions.  Consequently, occasional, small ‘bubbles’ and hairlines are normal and acceptable under recognized standards; from a normal viewing distance, they are barely noticeable.  To ensure acid-etched products are made from float glass that conforms to industry standards, the manufacturer should be consulted.  In Canada, glass should comply with Canadian General Standards Board (CAN/CSBG) 12.3-M91, Flat, Clear Float Glass (Quality: Glazing).  In the United States, ASTM International C 1036-01, Standard Specification for Flat Glass (Quality: Q3-Stock Sheet) should be followed.  The manufacturer’s product warranty should refer to these standards.  Clearly, it is important to be specific about the nature of the acid-etched glass product required.  Communicating specifications in detail to a glass professional can help ensure the chosen product meets desired goals and objectives.

For more information on Acid Etch Glass please contact Bear Glass at:

FACTORY/ OFFICE

Address:

Bear Glass Inc.

399 20th Street

Brooklyn, NY 11215

Phone: 718-832-3604

Fax: 718-832-0786

E-mail: bearglass@yahoo.com

If you are in New Jersey:

Bear Glass New Jersey

359 Essex Road

Tinton Falls New Jersey  07753

P: 732 901 2626

F: 732 901 2266

E: Sales@BearGlassNJ.com

Patterned Acid-Etched Glass and Mirrors By Bear Glass in Brooklyn NY

Bear Glass Is The Premier Walker Glass Distributor

Bear Glass stocks all Walker’s Products in our 25000 SQFT facility located in Brooklyn New York and we would like to help our customers better understand the different patterned glass that we offer through Walker.

Walker Textures™ Nuance Stock Patterned Acid-Etched Glass and Mirror

Walker Textures™ Nuance Stock has been created to answer the growing demand for unique and environmentally friendly material for decorative and architectural applications. Patterned acid-etched glass and mirror will not only provide a great visual effect but a textural effect as well, due to the depth variation of the design.

The stock product line of acid-etched patterns is available in five distinctive designs with the 100 and 300 series. The 100 series is an acid-etched finish which combines Velour and Satin creating a true sense of privacy while maintaining a design element to the glass. The 300 series is our Satin finish on clear glass giving greater visibility to the decor through the glass. Both of these series feature a relief effect which adds character to the glass surface.

Patterned Acid-Etched Glass and Mirror Advantages

  • Consistent finish and appearance
  • Maintenance free
  • More mar-resistant than sandblasted glass
  • Does not peel or discolor like films
  • Does not scratch off like coatings

Glass – Velour on Satin


Glass – Satin on Clear

Patterned Acid-etched Glass and Mirror Specifications

Substrates : Glass and mirror

    • Colors: Clear, bronze, grey, black, green, blue or ultra-clear *
    • Glass thicknesses: 3 mm to 19 mm **
    • Mirror thicknesses: 3 mm to 6 mm **
    • Sizes available: Standard 96″ x 130″, on request 84” x 130” **
    • Finishes:

Series 100 Velour on Satin
Series 300 Satin on Clear

  • Selected skus available in less than 4, 000 pound quantities

Walker Textures™ Nuance Custom Acid-etched Glass and Mirror

A world of countless creative patterns opens up to you with Walker Textures™ Nuance Custom. Now you can let your imagination run wild and create virtually any design. Thanks to our continuous research and development we are achieving high-quality registration and an unmatched level of detail.

The custom product line features three different acid-etch combinations allowing you to obtain your desired result. The 100 series combines two of our finishes Velour on Satin. The 200 series is our Velour on clear glass and the 300 series is our Satin on clear glass. All of these combinations create a nice textural effect on the glass surface.


Custom Acid-etched Glass and Mirror Advantages

  • Consistent finish and appearance
  • Maintenance free
  • More mar-resistant than sandblasted glass
  • Does not peel or discolor like films
  • Does not scratch off like coatings

Custom Acid-etched Glass and Mirror Specifications

    • Substrates : Glass and mirror
    • Colors: Clear, bronze, grey, black, green, blue or ultra-clear *
    • Glass thicknesses: 3 mm to 19 mm **
    • Mirror thicknesses: 3 mm to 6 mm **
    • Sizes available: Standard 96″ x 130″, on request 84” x 130” **
    • Finishes:

Series 100 Velour on Satin
Series 200 Velour on Clear
Series 300 Satin on Clear

  • Minimum Quantity: 4, 000 pounds

* Tempering of ultra-clear glass is recommended to correct slight color variances caused by the Walker Textures™ Nuance manufacturing process.

** Subject to glass availability.

Bear Glass can help you choose your patterned acid etched glass product needs to best fit for your project and by the way, we ship patterned acid etched glass worldwide.

For more information or to order your patterned acid etched glass products, please contact  Bear Glass at:

 

Factory / Office

 

Address:

Bear Glass Inc.

399 20th Street

Brooklyn, NY 11215

Phone: 718-832-3604

Fax: 718-832-0786

E-mail: bearglass@yahoo.com

ClearShield Glass Protection by Bear Glass



The idea of  ClearShield began in 1982, in London.  ClearShield is a new technology that is used for glass surface protection. This technology was actually introduced to the marine industry as the marines got to work with harsh environments. Presently the upgraded technology of  ClearShield is also used in commercial and residential glass and window applications.

ClearShield system helps to protect your glass surface. Metal rust, water spots make your glass surface hasty and unclear. Mostly the window glasses and shower doors suffer from such problems as they remain exposed to water or the environment.  ClearShield helps  save glass surfaces from any kind of stain or watermark and make it look like the new.

Bear Glass is a fourth generation glass and mirror company and has proven its expertise in all kinds of glass work. Bear Glass promotes the usage of  ClearShield technology when purchasing products that may be susceptible to water damage overtime so that it can be ensured that the glass lasts longer no matter where it is placed, be it a window glass or a shower door,   ClearShield we feel is your answer .

Protection with ClearShield is the ideal solution for sandblasted and acid-etched glass as it resists fingerprinting and staining, while maintaining the beautiful appearance of decorative glass.

Now if you are wondering about how  ClearShield works on your sandblasted items,   ClearShield creates a cover or protection on the glass surface that prevents other hazardous materials from damaging the glass. The polymeric resin provides the protection for the glass from any kind of chemical reaction and helps to keep it clean.


Bear Glass uses  ClearShield technology for their glass products. Shower doors by Bear Glass or window glass by  Bear Glass can be protected by  ClearShield glass protection. Before delivering, these products are always been tested by experts to know whether these products are going to give you the best what  Bear Glass always promises to you.

ClearShield technology does not only prevent your bathroom shower glass or windows from getting stained with water-marks or rusts, but it also enriches the strength of the glass  for long periods of time.  ClearShield coats over glass ensure a clean view through the glass, along with the environmental hygiene inside the room as the cover does not let the germs in or the bacterium grow on the glass surface.

Bear Glass recommends the advanced  ClearShield technology for glass so that you can expect  the best effect e when you order your glass products products from  Bear Glass.

Bear Glass is always here to help you with all your glass and mirror needs.  We do everything on glass.

Bear Glass ships all kinds of glass products nation-wide. For more information or to order your glass product, please contact  Bear Glass at:

FACTORY/ OFFICE

Address:

Bear Glass Inc.

399 20th Street

Brooklyn , NY 11215

Phone: 718-832-3604

 

Fax: 718-832-0786

 

E-mail: bearglass@yahoo.com

What Is Sandblasted Glass?

Sandblasting glass is becoming a very popular method of etching glass nowadays. Sandblasting is the act of propelling very fine bits of material at high-velocity so that it can clean a surface or etch a surface. Sandblasting glass can result most elusive art work on glass.

Bear Glass provides the best service in Sandblasting glass. With modern sandblasting glass equipment, Bear Glass can provide the best art and craft-work of Sandblasted glass.

 

In the process of preparing Sandblasted glass there are two techniques to be followed, glass-etching and glass-carving. Glass-etching is when abrasive is blasted on the glass lightly to give it a frosty appearance. On the other hand, Carving is when steadily sandblasting is done to the surface of a glass using stencil which protects the areas those are opted not to be carved out. The technique of sandblasting for carving a glass can be much nuanced with differing depths and angels of cuts creating an array of lighting effects which is really beautiful.

 

Sandblasted glass can change your idea of designing. Usage of glass indeed makes things look more attractive, and sandblasting glass can join another positive point in there if you fascinate beauty.

Sandblasting glass have massive usage to enhance the overall look of offices, variety stores or designer show-rooms, or you can even use it to give your home a modern and sophisticated look. The etchings on glass due to the process of sandblasting make wonderful details to the front doors or kitchen cabinets.

The frosted appearance or different textures of sandblasted glass give glasses a very different look which does not allow them getting smudged by repeated touching. Sandblasting glass can provide you  various designs that you never expected possible on a glass surface.

Sandblasting glass can create an elegant art-work. A good number of modern artists have tried their elegant pieces of art-work by using  sandblasted glass.

Changing design would not only make your workplace or living-place look better, but it would help to change your normal mood to a charming one as well also. We have used sandblasted glass in our office which has dramatically affected the mood of our senior staff.

 

Bear Glass has proved its expertise on all facets of glass for more than 30 years. Artwork that can change the view of your office or can make your home or apartment more beautiful. With the help of modern sandblasting equipment, Bear Glass can impress  with rare but elegant pieces of craftsmanship by  sandblasting glass.

 

Bear Glass can help you design your sandblasted glass needs to best fit for your project . We ship sandblasted glass worldwide.

For more information or to order your sandblasted glass products, please contact Bear Glass at:

FACTORY/ OFFICE

Address:

Bear Glass Inc.

399 20th Street

Brooklyn, NY 11215

Phone: 718-832-3604

 

Fax: 718-832-0786

 

E-mail: bearglass@yahoo.com

Glass Etching By Sandblasting Glass


 

Bear Glass provides the service of sandblasting glass.  Sandblasting glass is becoming one of the very popular methods of etching glass.  Sandblasting glass can result in producing the most elegant etching on glass.  There are various techniques used in sandblasting glass that can create works of art as a finished product.

Sandblasting glass is a special glass treatment with the smallest abrasive particles that are forwarded together with an air stream at a special chamber.

A creative and decorative way of decorating glass is by enhancing it by the sandblasting glass method.  Basically, a matt image is being etched into a glass or mirror surface.

Sandblasting glass is also known as sandcarving. This method allows a greater control method to produce the highest quality work.  The process of sandblasting glass uses the same steps of producing any etching stencil but the material usually needs to be thicker to withstand the pressure of abrasive blasting as sandblasting glass does.  The sandblasting glass method takes place by blasting abrasive from the sandblaster over the stencil resist material.  This is all powered by the supplied air from the air compressor.  The glass becomes eroded to create a frosted elegant design.

Glass etching via sandblasting glass is a beautiful and elegant method of creating a graphic design on the surface of an otherwise smooth piece of glass. Etched and carved glass has been widely used throughout history, being found in upscale banks, hotels, residences, restaurants and theaters. The resulting etched surface can then be embellished even further with color to produce an even more impressive end result.

Sandblasting glass is the perfect addition to glass doors.  The etchings make wonderful details to front doors or kitchen cabinets.  Bear Glass can help you design your sandblasting glass needs to best fit your project or overall design goal.  Sandblasting glass can provide you with design alternatives that you did not think were possible.

We ship Sandblasted Glass world wide.

For more information, please contact us at:

FACTORY/OFFICE

Address:

Bear Glass Inc.

399 20th Street

Brooklyn, NY 11215

Phone: 718-832-3604

Fax: 718-832-0786

Email: bearglass@yahoo.com