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Today, one of every three Asian, Domestic, and European vehicles on the road in North America includes Bosch braking components. That's because Bosch has been a key player in the braking industry since applying for its first brake system design patent in 1936. Bosch introduced Antilock Braking technology to market, as well as Electronic Stability Control systems. Now Bosch brings over 70 years of OE braking expertise to the aftermarket with Bosch QuietCast Premium Disc Brake Pads. The QuietCast Premium Disc Brake Pad program offers top quality, availability, competitive pricing, and full coverage for all makes and models of Domestic, Asian, and European automobiles, light trucks, and SUVs. Formulations include platform-specific Copper Free ceramic and semi-metallic that meets the 2025 Copper Free Legislation. With 'Science Behind the Silence', QuietCast raises aftermarket brake pad technology to a whole new level. Bosch QuietCast Premium Disc Brake Pads utilize innovative materials that ensure the highest level of quality. Bosch integrated their best OE-style rubber core multilayer him to ensure quiet operation. QuietCast delivers the quiet operation you expect with the durability and long life that are the hallmarks of all Bosch products. QuietCast comes complete with hardware (where available) and lubricant to do a complete brake job the first time, every time. Brake pad glazing is the crystallization of friction material resulting from the brake pad reaching temperatures above the specified heat range (overheating) or improper “bedding in” of the brake pads. Such crystallization can result in poor stopping performance, additional brake vibrations, or cracking in the brake pad material. Glazing is a misnomer and has not technically been observed since the elimination of asbestos. Many of the ingredients in the older asbestos linings would fuse during braking because of the intense heat generated at the interface of the drum lining and drum. The fusion of the materials would form an amorphous (i.e. glass-like) layer with poor stopping ability. Today’s highly engineered friction materials are designed to quickly form a smooth polished surface that coats both the disc and the pad surface with a microscopic layer of material known as the transfer layer (or third body layer.) This layer is essential to consistent friction level, long life, low dust and quiet performance.