These Roof Coatings Contain No MEKO

Methyl ethyl ketoxime (MEKO) is a category 1B carcinogen produced during the curing period for oxime-based roof coatings.
Nov. 10, 2025

Everest Systems introduces Silkoxy, a brand of alkoxy-based silicone technologies that’s free of methyl ethyl ketoxime (MEKO), a category 1B carcinogen that’s produced during the cure of oxime-based roof coatings. MEKO is typically released at concentrations of more than 4% from oxime roof coatings and has been linked to significant health risks.

Everest Systems’ alkoxy based silicone roof coating formulation emits no MEKO, preventing exposure to carcinogenic substances and eliminating the strong, unpleasant oxime odor during application. The Silkoxy coating line includes multiple silicone roof coatings, as well as a flashing grade that serves as a protective coating for membranes, a flashing/repair grade patch, and a walkpad for light foot traffic.

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