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

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

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

Urethane adhesives are the most flexible, so they bond dissimilar materials and damp vibration.

Remaining flexible after curing, these glue sticks accommodate joint movement.

Bond glass and stone to drywall, treated lumber, and subfloors.

Bond and repair nosing and stair treads with this thick, two-part epoxy.

These kits include adhesives, applicators, and mixer nozzles.

These adhesives maintain their strength at temperatures up to 250° F.

Tested to meet ASTM E595, a standard used by NASA, these sealants fill joints and seams while releasing almost no volatile emissions that could damage sensitive electronics, even in a vacuum.

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

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

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

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.

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-sag sealants, these flow easily into cracks and have a smooth finish.

The textured finish matches concrete surfaces.

These sealants are non-sagging, so they won't drip from vertical and overhead surfaces.

Able to withstand temperatures up to 2300° F, these ceramic surface fillers are often used as thermal insulation on brick, mortar, burner blocks, furnace holders, and thermocouples.

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

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.

Fill cracks in horizontal, vertical, and overhead concrete surfaces.

Stop active leaks of up to 50 gallons per minute in concrete, brick, and stone. These crack fillers begin to harden within seconds 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.