Sealant for Decomposed Granite Path

Answered by Brett ~ June 6, 2010 ~ Comments

Decomposed granite is washing away and the tiny pieces get caught under shoes and scratch up our wooden floor. Is there a sealant that can be used to seal? Other options?

Harry ~ Roseville, California

Brett Kulina

Harry, if your decomposed granite pathway is washing away and the loose gravel pieces are causing you problems, then the material was installed loosely without any stabilizers or resin binders. This type of installation is very common in landscaped areas or garden path applications, but I agree that it is a pain in the neck when the small bits of rock and gravel find their way into your home on the bottoms of your shoes.

I suggest that you contact a landscaping contractor who works in the Roseville area and is familiar with the different ways that decomposed granite can be installed. Basically there are three standard ways of using decomposed granite in walkways and driveways, and all require proper drainage, effective edging along the sides, and good compaction underneath. Decomposed granite can be loosely installed much like other gravel materials, but as you know this type of installation is susceptible to erosion by foot traffic and rain water. A second method of installing decomposed granite is too mix the material with a stabilizer, like a sand binder, and compact it well. Although, there will still be some loose material on top of the pathway, it will hold up better over the long haul. The most effective way to help keep decomposed granite in place is to mix it with a resin, which hardens the material to an almost pavement like consistency. Installing decomposed granite which is mixed with resin should provide you a durable walking surface that can last for years, and hopefully this will keep those little gravel pieces out of your house. Good luck with your project!

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