We are always looking for, and testing new waterproofing materials as they evolve and enter the market. Most of the products we install are "Polymer Modified Liquid Asphalt Emulsions" This means they are water based liquid asphalt with a rubber additive. Water based products are the most common today and are much friendlier to the environment and the installers compared to solvent based products. The rubber additives increase the elasticity of the material allowing it to stretch over a crack and keep the moisture and soil gasses out of your basement.