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Raven 155 is a waterborne epoxy used to reduce water vapor transmission and seal green concrete surfaces prior to topcoat application. It is a two component waterborne epoxy with ultra-low viscosity.

Use as a penetrating primer/sealer for new and existing concrete and as a polymer additive with high-early strength repair mortars. This product is particularly suitable to prevent out-gassing through topcoats and Raven recommends using Raven 155 to prime concrete exhibiting a moisture vapor emission rate greater than 3 lbs/1,000 ft2/24 hours, when tested according to ASTM F 1869.

Raven 155 TDS

Raven 155 TDS Spanish

Raven 155 SDS

Raven 155 Primer Tech Bulletin