sealant

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sealant

 [sēl´ant]
an agent that protects against access from the outside or leakage from the inside; called also sealer.
dental sealant a thin plastic coating put into the pits and fissures of teeth to act as a physical barrier to decay.

seal·ant

(sē'lănt),
1. A material used to effect an airtight closure.
2. Substance applied to a damaged organ to affect homeostasis, to curtail other leakage, or to facilitate prolonged drug delivery to a limited area.

sealant

(sē′lənt)
n.
1. A substance, such as sealing wax, used to seal a surface to prevent passage of a liquid or gas.
2. A plastic resin used in dentistry to coat the chewing surfaces of the back teeth to prevent the growth of cavity-causing bacteria.

sealant

Dentistry A UV light-cured resin used to coat fissures in teeth and prevent cavities Surgery A substance used to close gaps or vessels. See Fibrin sealant.

seal·ant

(sēl'ănt)
1. A material used to effect an airtight closure.
2. Substance applied to a damaged organ to affect homeostasis, to curtail other leakage, or to facilitate prolonged drug delivery to a limited area.

Sealant

A thin plastic substance that is painted over teeth as an anti-cavity measure to seal out food particles and acids produced by bacteria.
Mentioned in: Tooth Decay

seal·ant

(sēl'ănt)
1. Material used to effect an airtight closure.
2. Substance applied to a damaged organ to affect homeostasis, to curtail other leakage, or to facilitate prolonged drug delivery to a limited area.
3. Composite material applied to dental pits and fissures to prevent decay.
References in periodicals archive ?
Penetrating sealers work into the pores and react with the concrete but do not create a film, while clear water-repellant, film-forming systems create a barrier at the surface.
* To better resist surface staining and etching, apply a penetrating sealer and then a hard wax, such as carnauba wax, or a newer natural-synthetic blend.
Primarily, concrete sealer are classified into two types: penetrating sealers and film forming sealers.
Silanes or siloxanes are penetrating sealers. They do help seal the surface against liquid water and stains but they do not prevent water vapor loss from the concrete during cure.
Penetrating sealers do not need to be reapplied, as they penetrate the concrete and seal all the pores, but they may not penetrate if the concrete is very dense and cannot absorb water.
The Iso-Flex product line of traffic coatings, roof coatings, sealants, penetrating sealers and expansion joint systems provides a complete package of products for the protection of concrete structures.
So if you have smooth steps or walkways, there's an alternative you should know about: Penetrating sealers such as "silane" and "siloxane" create a barrier within the concrete rather than on the surface.
* The addition of two new categories--Stone Consolidants and Reactive Penetrating Sealers;
Rejuvenating or penetrating sealers are products intended to, as the names imply, penetrate and rejuvenate the surface of an asphalt pavement.