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Silicone gets a lot of talk. You’ll find contractors who either love it and use it religiously or hate it for its tricky application prep and cure time. While silicone can be stickier and tougher than traditionally-used latex products and is often considered the go-to for waterproof caulk, it can malfunction in a number of ways that have contractors everywhere scratching their heads–or expending hours of precious time during reapplication.

To help ease the challenges of finding the right sealant, we want to present some alternatives to the infamous silicone. This article will dive into a few reasons why silicone might not be your best bet and we will discuss a better waterproof caulk alternative for your next job.


Roof leaks? No thanks. This month, we have a fun story courtesy of one of our resident paid geeks (aka Senior Chemist) Jim Barnes about an unconventional roof leak fix, along with a shameless plug for our Through the Roof! roof and gutter sealant, just in time for fall and winter storms to hit.

“Way back, we had a retailer tell us that he was in a pinch,” Jim told us. “Out of desperation, he did a lousy repair using Through the Roof! and a piece of yellow legal pad paper. He patched a literal hole in his store roof during a rainstorm. Of course, he figured he’d have to redo it properly when the weather cleared. He forgot all about it, then ten years later, he’s up on the roof and sees the spot. It was still holding strong. Because we like to geek out at Sashco, I had some fun making a display in the lab that commemorates this story. It has held water continuously for about 8 years now.”

While we don’t recommend repairing your leaks with notebook paper, we do know you can depend on Through the Roof! to stop leaks in their tracks. It sticks to wet surfaces and holds strong until you can get to that real repair (even if you forget about it for a few years). Learn more about Through the Roof! today.

What do you get when you combine a roofing contractor and a sealant manufacturer for a chimney repair project (apart from much time spent arguing over who gets to use the rad tools)? An expert example of tuckpointing a chimney.

Recently, Sashco president Les Burch and Sashco team members Sabrina and Randy helped Shane Guerra, the owner of Synergy Property Solutions, and his team, repair a chimney. Shane used Mor-Flexx, a latex acrylic caulk designed specifically for the chimney repairs. Mor-Flexx is ideal for use on mortar between stucco, concrete, bricks, and stone, or stucco repairs.