Trench Lining with Direct Steam Exposure Protected with Bio-Seal E907 & Bio-Dur E3000
DESCRIPTION
CHALLENGE
A concrete drainage trench originally coated with a cementitious urethane liner was experiencing delamination due to direct steam exposure. The combination of high heat and abundant moisture proved challenging for traditional repair materials even when fully cured. An ambient curing, high temperature tolerant lining system was needed that could handle constant moisture.
SOLUTION
TFT’s BIO-SEAL 907 low viscosity saturant and BIO-DUR E3000 coating were selected for their proven high temperature resistance, moisture tolerance, and durable protective properties. The BIO-SEAL E907 would be used as a concrete primer to penetrate, seal, and reinforce the concrete substrate. Originally developed for the nuclear industry as a high temperature liner, the BIO-DUR E3000 would create a temperature tolerant protective lining that could handle direct steam.
IMPLEMENTATION
The previous liner was removed and concrete was abraded to provide a rough, clean profile for maximum adhesion. The trench was dried completely to open the pores of the concrete for saturation. BIO-SEAL E907 was applied by brush and roller at 300 Square feet/gallon until completely absorbed by the concrete. After curing for a few hours, BIO DUR E3000 was applied by trowel in a single coat at 30 mils. Corners were built up to improve fluid flow once returned to service. No specialized ventilation was needed due to its zero-VOC formulation.
OUTCOME
The coating was fully cured within 24 hours and required no additional post-curing, handling, or safety precautions. The concrete was protected from further steam damage and eliminated future moisture concerns.
PROJECT DETAILS:
Location: New York
PRODUCTS USED:
Bio-Seal E907 High Heat Tolerance Epoxy