Deck-O-Seal two-part, polysulfide-based joint sealant is pourable, self-leveling, and non-staining. It cures at an ambient temperature to a firm, flexible, tear-resistant rubber. Resisting most chemicals, weather conditions, aging, and shrinkage, the substance possesses good recovery characteristics after long periods of compression or elongation. Standard colors are dura-white, stone gray, and desert tan; black and redwood are available by request. WR Meadows Inc. 800-342-5976.