Excellent coverage rate, good scuff resistance and compatibility with Semco s PreStain make it a favorite when using the Semco coloring system. XC-400 is available in low and medium gloss. Both urethanes and epoxies provide superior chemical resistance, which is important in some commercial and industrial applications. But one possible downside is the transmission of vapor through the slab, which can result in blushing or delaminating. A low-tech yet effective vapor test is to double tape a 24x24 inch sheet of 6 mil poly down overnight.
Condensation trapped under the plastic indicates a problem.
It s prudent to do a vapor check before bidding a job. Our two expoxies are applied much heavier than the other top coat products and yield up to 100-200 sq. Both are two-part systems with low odor and are VOC compliant. Xpoxy wears to a semi-gloss finish with good slip resistance. Our other epoxy, Broadcast 125, is a 100 percent solid formula with no water or solvent content.