These structural sealants combine the mechanical strength of an adhesive with excellent sealing properties and high flexibility. They’re non-sagging, so they won't drip from vertical and overhead surfaces.

Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. For joints between dissimilar materials and in environments with wide temperature fluctuation, choose a sealant with a higher elongation or joint compression/expansion tolerance. For high-wear applications, choose a harder sealant for the most abrasion resistance.

Made from silicone, these sealants are RTV (room-temperature vulcanizing). They’re non-sagging, so they won't drip from vertical and overhead surfaces.

Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. Sealants that are good for joining dissimilar materials also work well in environments with wide temperature fluctuation.

Clear enough to read through, these UV-resistant sealants allow optimal light transmission for use with solar cells and fiber optics. Sealants are non-sagging, so they won't drip from vertical and overhead surfaces.

Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. 3M 730 UV is good for use between dissimilar materials and in environments with wide temperature fluctuation.

Thinner than non-sagging sealants, this sealant flows easily into cracks and has a smooth finish.

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

Butyl rubber has a sticky, gummy consistency.

Repair equipment and vehicle windows with these sealants that are rated to withstand impact within three hours of application. They’re non-sagging, so they won't drip from vertical and overhead surfaces. These sealants are good for use between dissimilar materials and in environments with wide temperature fluctuation. They’re crash tested and meet Federal Motor Vehicle Safety Standard 212 for windshield mounting.

Elongation indicates flexibility—the higher the value is, the more joint movement a sealant can sustain.

A primer is required. For best results use P591 for composites, glass, and fiberglass and P592 for aluminum, steel, and stainless steel.

Seal joints and gaps in concrete. These sealants are non-sagging, so they won't drip from vertical and overhead surfaces.

Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. These sealants are best suited to joints between similar materials that aren't exposed to wide temperature fluctuation.

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

3M Scotch-Weld DP5106 is mixed and dispensed simultaneously; use it with a mixer nozzle and dispensing gun.

Elongation indicates flexibility—the higher the value is, the more joint movement a sealant can sustain. For high-wear applications, choose a harder sealant for the most abrasion resistance.

Prevent the edges of tape, signs, and graphics from peeling by sealing out water and debris.

This tape has a higher density than standard tape for a better seal between threads. Made of PTFE, it has a slippery surface that keeps threads from binding to make parts easy to assemble.

Made of PTFE, this tape has a slippery surface that keeps threads from binding to make parts easy to assemble.

Form bonds that will not degrade in the presence of oils and fuels. Gasket adhesives hold gaskets in place during assembly.