Review on 🔧 Liquid Rubber Multi-Purpose Primer - Ideal for Concrete and Wood Surfaces, Water-Based & Non-Toxic, Fast-Drying Formula, Easy Application, 1 Gallon Size by Rushabh Gonsales

This is one of the best products on the market. I used it before impregnating the RV. But the main reason I would recommend liquid rubber products is that they have a wonderful customer service number that you can call with any application or usage questions. They are friendly and knowledgeable about the products they sell. The only complaint I have is the cost. It's so expensive. But if you want to do it once and do it right, then go for liquid rubber products. I highly recommend calling them before ordering anything. Because some projects require additional prep steps or even a different primer. (Same as my last project) You can find the number by googling USA liquid gum. This step saves you time and nerves.