RPC-Overview

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Corrosion currently costs the United States economy $276 billion per year1 and costs the world economy
even more. In acidic environments it is critical to engineer solutions to account for the depreciation of
equipment caused by corrosion. Current commercial solutions that address corrosion are specialized
alloys, such as Inconel®, Monel® and Hastelloy®—or coatings.
We developed Silcosteel®-CR treatment to protect
equipment exposed to hydrochloric acid, nitric acid,
sulfuric acid, or marine environments. Silcosteel®-
CR treatment upgrades the corrosion resistance of
300-grade stainless steels by an order of magnitude.
An advantage of Silcosteel ®-CR treatment over super-alloy solutions is cost. Many of the high nickel super-
alloys, such as Inconel® , Monel® and Hastelloy® are expensive and machining costs are higher for these
soft materials than for 300-grade stainless steels.
Silcosteel®-CR treatment also offers major advantages over traditional coatings. Our chemical vapor dep-
osition process incorporates the treatment into the stainless steel lattice. Traditional overlay coatings rely
primarily on primers or surface tension to remain in contact. The Silcosteel®-CR process eliminates delam-
ination, a common problem with overlay coatings.
Silcosteel®-CR, an effective, durable solution
at lower cost than specialty alloys.
1Corrosion Costs and Preventive
Strategies in the United States U.S.
Department ofTransportation Federal
Highway Administration, Publication No.
FHWA-RD-01-156.
Restek Performance Coatings • 800-356-1688 • 814-353-1300 • 25