Description

Product Overview P-99 is a state of the art, Bisphenol F epoxy, Moisture Vapor Barrier (MVB) coating. As a Bis F, it has higher functionality than Bis A epoxies, providing better chemical resistance to caustics and acids. This is critical when combating high alkalinity at the concrete/coating interface. P-99, when properly installed, creates a tight film that tenaciously bonds to concrete. This highly crosslinked film reduces the amount of moisture vapor that can pass from the concrete through the P-99. Independent testing, performed by CTL Labs, shows ASTM E96 test results of .074 grains per hour, per square feet, per 1 inch of mercury. This extremely low perm rating results in P-99 being classified as a Class 1 vapor retarder. P-99 comes in standard and fast set versions.

Key Performance Benefits
● Exceptional Moisture Vapor Suppression:
P-99 forms a highly crosslinked, tenacious film that adheres strongly to concrete, reducing moisture vapor emission rates to 0.074–0.1 perms or less, as shown in independent ASTM E96 testing. This makes it a Class 1 vapor retarder, allowing application of non-permeable floor finishes over “troubled” concrete.
● Deep Penetration & Alkali Resistance:
Its modified epoxy backbone penetrates deeply into concrete, resisting high alkalinity at the concrete/coating interface, which is critical in preventing alkaline hydrolysis.
● Chemical Resistance:
As a Bisphenol F epoxy, it offers superior resistance to caustics and acids compared to Bisphenol A epoxies, making it suitable for battery charging stations, laboratories, and chemical splash/spill areas.
● High Build & Durability:
Can be used as a primer or as a chemical-resistant build/topcoat, providing a thick, durable barrier for heavy-duty applications.
Technical Highlights
● Mix Ratio: 2 parts Part A to 1 part Part B by volume.
● Ideal Application Temp: 60–85°F; substrate above 5°F dewpoint to avoid amine blush.
● Working Time: 15–20 minutes; gel time 4–6 hours (2–3 hours for fast set)
● Coverage: ~100 sq. ft./gal.
● Solids: 100% mixed