Is Liquid Rubber Waterproof Sealant environmentally friendly? Yes, it is a water based product containing no solvents or VOC's (volatile organic compounds). Related articles What if I don't want black as my final color? What if I see blisters? Is this product good for adhering to wood. I'm looking to waterproof a 1/2 whiskey barrel for ponding ? Will sun have an effect on the Liquid Rubber Waterproof Sealant? Comments 0 comments Please sign in to leave a comment.