Make a temporary repair to cracks in any flat roof. These patching compounds are a powder that forms a thick gel in minutes when poured directly into standing water and rain.

Repair holes and seal gaps in roofing and gutters. These patching compounds are durable and water resistant.

Roll out a fast fix for leaky roofs and gutters with these peel-and-stick rolls.

Stop slow-flowing and weeping leaks in concrete. Also known as hydraulic cement, these crack fillers begin to harden in three to five minutes to create a permanent fix that won't shrink.

Fill in and shape horizontal, vertical, and overhead concrete surfaces, such as steps and columns.

Use these two-part compounds to patch concrete floors and stairs in cold environments, such as freezers. At room temperature, they cure faster than any of our other concrete patching compounds.

For use when thickness will be more than 2", concrete mixes consist of cement, sand, and gravel.

Used for brick, block, and stone laying as well as for repairing masonry, mortar mixes consist of fine sand and masonry cement.

These machinable epoxies are mixed with steel, but won’t rust, so they can be used to repair cracks and threaded holes.

To allow time to adjust and position parts, these epoxies remain workable for at least 90 minutes.

Made from silicone, these sealants are RTV (room-temperature vulcanizing).

Also known as neutral-cure sealants, these won't discolor copper, brass, and concrete.

Meeting requirements for semiconductor, biomedical, and electronics clean rooms, these sealants won’t contaminate air and surfaces.

A combination of hardness and surface tension makes these sealants resistant to punctures, cuts, and abrasion.

These structural sealants combine the mechanical strength of an adhesive with excellent sealing properties and high flexibility.

Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.

These non-sagging sealants will not drip while hardening on vertical and overhead surfaces.

Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.