Polysiloxane Coatings from Sherwin-Williams Help Reduce Maintenance Costs for US Navy

Sherwin-Williams had displayed its anti-corrosion coating product called Polysiloxane XLE-80 HAPS Free at Mega Rust 2011 conducted from 6 to 9 June, 2011 in Norfolk, Virginia.

A presentation titled ‘Time & Cost Savings Associated with the Application of MIL-PRF-24635 Type V Polysiloxane’ was delivered by Sherwin-Williams Protective and Marine Coatings’ Mark Schultz, U.S. Naval Research Laboratory’s Paul Slebodnick and U.S. Naval Research Laboratory Consultant, Gordon Kuljian.

The presentation reported a Navy project that utilized the coating. As per an analysis conducted as part of the project, labor and coating costs of polysiloxane coating are 26% less than that of silicone alkyd coating.

The Polysiloxane XLE-80 HAPS Free epoxy siloxane coatings from Sherwin-Williams fulfill the specifications of the U.S. Navy’s weather-resistant exterior coatings performance specification MIL-PRF-24635, which includes new high-durability categorizations (Type V). The product was selected for the freeboard topcoat when the USS Bonhomme Richard, an amphibious assault ship, needed external coating during a maintenance period that extended for 10 months.

The Polysiloxane XLE-80 HAPS Free epoxy siloxane coating demonstrates the characteristics of both polyurethane and epoxy in single coat. It offers better gloss retention, color stability and corrosion resistance as well as reduces the required drydock time for external painting, as it needs minimum number of coats. It reduces or totally eliminates the requirements to use maintenance paint for aesthetic appeal. It also decreases the possibility of color change from haze gray to pink over a period of time.

The new topcoat used on the USS Bonhomme Richard would demonstrate two or three times durability when compared to silicone alkyd-based coat.

Source: http://www.sherwin-williams.com

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