Mix these two-part epoxy surface fillers to create a strong repair in wet environments or underwater.

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.

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

Mix this two-part epoxy—a resin-aggregate blend and a pigmented hardener—to create a grout that resists chemicals and doesn't require sealing. Use on ceramic, concrete, and stone floor and wall tiles.

Epoxies are the strongest and most weather- and chemical-resistant structural adhesives. They work especially well on metals.

For quick repairs, these epoxies begin to harden in 6 minutes or less.

Also known as thumb-grade caulk, this forms a non-hardening, moisture-resistant seal that remains pliable.

Mix a small amount of water-based paint with this caulk to match the color of your surface.

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

Clear enough to read through, this UV-resistant sealant allows optimal light transmission for use with solar cells and fiber optics.

Apply these sealants in cold temperatures, on wet surfaces, and even through running water.

With chemical and metal additives that are picked up by X-ray machines and metal detectors, these sealants are designed to help you comply with Hazard Analysis and Critical Control Point (HACCP) programs in food-processing facilities.

Designed for use on ovens and kilns, these sealants form a durable, rock-hard seal after firing.

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

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