The complaint most frequently voiced about nonstick finishes is that they wear off too quickly and too easily.
Why? Because most coatings are just that: a coating (whether single or multi-coat), applied over a metal substrate, with little surface preparation other than cleaning the metal base and abrading it. So the coating remains separate from the part coated, simply layered over the surface.
The result: rough treatment such as scratching, cutting or abrading can separate the coating from the substrate, leaving bare metal exposed. This, in turn, can result in sticking to the surface of the substrate – whether it be food in a frying pan, adhesives in an applicator or paper in a copier. That’s why Whitford developed the Excalibur system.
Excalibur is far more than a nonstick coating. It’s a unique system. What makes it different from – and superior to – all non-sticks is the fact that it is reinforced. So Excalibur actually becomes an integral part of the surface to which it is applied, combining the strength of stainless steel with the low friction and release of nonstick.
The following diagrams explain in detail why Excalibur is so much stronger than all coatings.
1. First, the surface of the substrate is blasted with an abrasive to roughen it, so that other elements in the Excalibur system adhere to it better.
2. The most important part: white-hot particles of a special stainless-steel (an alloy patented by Whitford) are sprayed onto the roughened surface.
3. The particles cool and harden, bonded to the surface, forming a series of “peaks” and “valleys” that provide a permanent base for the coatings.
4. Several coats of tough fluoropolymers fill in the “valleys” and cover the “peaks”, locked permanently into place by the stainless-steel “peaks”.Learn More About Excalibur® Fluoropolymer Coatings Here:
Excalibur Fluoropolymer Coatings Why Excalibur Fluoropolymer Coatings? The Excalibur Process Excalibur Test Results When to Use Excalibur