Specification Brand : USA Knifemaker Supply BulletPoint1 : This is ceramic fireplace glass. It holds up very well to heat and thermal shock. BulletPoint2 : Use this on your flat platen to provide a very slick, smooth surface for your belt to ride over. BulletPoint3 : This glass will wear much slower than even a hardened steel platen. BulletPoint4 : This is one piece of a platen. You choose size. ExternallyAssignedProductIdentifier1 : 0725657808105 ExternallyAssignedProductIdentifier2 : 725657808105 IncludedComponents : Platen ItemName : Ceramic Glass Platen Liner/Ceramic Glass Platen for Belt Sander Grinder (2"x9") ItemTypeKeyword : power-belt-sanders Manufacturer : Schott-North America MaximumCurrent : 3 amps ModelName : Glass Platen ModelNumber : Glass Platen ProductDescription : NOTE: This glass is not guaranteed against breakage. If you break it, you own all the pieces. Glass breaks and this application will eventually force you to break it to replace it as it wears or it will break from use. Use at your own risk. Buy 2 of them if you think you will break one. NOTE: There are several pictures of installing this Pyrex below on my own No Weld Grinder platen. Scroll down and click on the pictures. The friction is much lower so you will generate less heat. There are other variations and trademark names for high temperature glass. Pyraceram(tm) is one. I don't have a list of them all. Regular window glass and safety glass expand too much from the grinding heat and will crack. I've learned this the hard way. There is an important caution you must be aware of when using Pyrex like this. This is NOT safety glass. If it shatters, it will produce very sharp and dangerous shards of glass. If it comes loose from your platen while grinding, it could be a disaster. Always wear eye protection when grinding. I have heard of several reports of glass liners coming off during grinding. The heat generated softens the adhesive and the glass gives way. In every case, the glass shattered and threw dangerous pieces of glass. There are plenty of reasons not to use this material on your grinder. Having said all that, I use it and have for years. I think most makers that try it, swear by it. You DO have to be careful when you apply it to your platen. ProductSiteLaunchDate : 2024-01-11T19:41:22.993Z Size : 2"x9" SupplierDeclaredDgHzRegulation : unknown SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 UnspscCode : 23131500