Archives for September 2017

What is mastic? Mastic is an expansion joint sealant that is used to seal expansion joints around swimming pools which are subject to movement. The product provides a firm, flexible, water proof seal over the expansion joint that typically surrounds the swimming pool—and is typically between the pool coping and the concrete deck. It is resistant to swimming pool chemicals. Why is it necessary to … [Read more...] about Mastic (also called Deck-O-Seal) – What Is It and Why Is It Important?