GARDOX horizontal joint sealant is a pourable, two-component, cold-applied compound for sealing joints in concrete. The product contains chemically reactive polymers, plasticized with coal tar, that cure to a durable, rubber-like joint seal that offers a firm, smooth, non-tracking surface, retaining flexibility from -20° F (-29° C) to over 200° F (93° C). GARDOX effectively seals the joint against water infiltration and rejects incompressibles. GARDOX is resistant to jet fuels and most common solvents and chemicals. GARDOX can accommodate a joint movement of +/-25% when a 2:1 minimum width-to-depth ratio is maintained and proper application techniques are followed.