A sealant is a viscous material that changes state to become solid, once applied, and is used to prevent the penetration of air, gas, noise, dust, fire, smoke or liquid from one location through a barrier into another. Typically, sealants are used to close small openings that are difficult to shut with other materials, such as concrete, drywall, etc. Desirable properties of sealants include insolubility, corrosion resistance, and adhesion. Uses of sealants vary widely and sealants are used in many industries, for example, construction automotive and aerospace industries.

Silicone is an example of a sealant.

Types of sealants

* Acryl sealants
* Polysulfide sealants
* Polyurethane sealants
* Silicone sealants
* WTK sealants
* Firestop

ee also

*Dental sealant
*Seam sealant
*Stone sealer

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Look at other dictionaries:

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  • sealant — [sēl′ənt] n. [ SEAL1 + ANT] a substance, as a wax, plastic, silicone, etc., used for sealing …   English World dictionary

  • sealant — An organic compounds (such as wax, oil, grease) used to protect seams or surfaces. Also called cavity sealant, mastic seam sealant, sealer, silicone rubber sealant, or sealing compound …   Dictionary of automotive terms

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  • sealant — noun Date: 1944 1. a sealing agent < a radiator sealant > 2. a plastic material applied to parts of teeth with imperfections (as pits and fissures) to prevent dental decay …   New Collegiate Dictionary

  • sealant — [[t]si͟ːlənt[/t]] sealants N MASS A sealant is a substance that is used to seal holes, cracks, or gaps. Syn: sealer …   English dictionary

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