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Longman Dictionary of Contemporary English
sealant
noun
EXAMPLES FROM CORPUS
▪ All necessary bolts and sealant were supplied by the manufacturer.
▪ Clear out loose and damaged material and fill with exterior sealant, which will remain flexible 11 Check all brickwork pointing.
▪ Cracks should be repaired with a filler, and porous surfaces primed with a sealant or a diluted coat of masonry paint.
▪ It can be sealed with several coats of varnish or special sealant in humid areas like bathrooms or kitchens.
▪ So the wrong sealant was picked out of all the crevices and the correct, two-component mixture squeezed into place.
▪ Termites are necessary to decompose old woody vegetation, but they were fond of eating the sealant around the windows.
▪ The sealant would expand or contract by that amount as the building shifted.
▪ The body has been left unfinished, and only an oil sealant has been given to the wood to protect it.
Douglas Harper's Etymology Dictionary
sealant

1945, from seal (v.) + -ant.

Wiktionary
sealant

n. 1 Any material used to seal a surface so as to prevent passage of a fluid. 2 (Construction) A mixture of polymers, fillers, and pigments used to fill and seal joints where moderate movement is expected.

WordNet
sealant

n. a kind of sealing material that is used to form a hard coating on a porous surface (as a coat of paint or varnish used to size a surface) [syn: sealer]

Wikipedia
Sealant

Sealant is a substance used to block the passage of fluids through the surface or joints or openings in materials, a type of mechanical seal. In building construction sealant is sometimes synonymous with caulking and also serve the purposes of blocking dust, sound and heat transmission. Sealants may be weak or strong, flexible or rigid, permanent or temporary. Sealants are not adhesives but some have adhesive qualities and are called adhesive-sealants or structural sealants.

Usage examples of "sealant".

Continuing to mutate, the fungi forced its hyphae into the microscopic fissures within the aluminum skin of the tanks, having already consumed the lining of rubber sealant.

The old sealant was vitrified but the assembly went in with surprising ease.

Underneath was a tangle of tubes, cables, and freely-curving pipes, of various sizes and colors, smoothly branching and reconnecting, some sinking out of sight beneath the others, and the whole works set into a pinkish jellylike insulation or sealant of some kind.

He lay on the ledge and giggled, softly, a whuffling intake and outgo of air, then he did his breathing exercises, slow the breath, in-out, in-in-in until his body ached, out-out-out until he was empty, again and again, until he was wholly relaxed, limp, almost asleep, breathing the cool odorous smell of the stone, the sealants that made the room potentially airtight, fugitive traces of robot stink and other traces it was not possible to identify.

We were all heading back from the sun, heading back to the moon, in great shape really, despite the beerguts and cellulite quilting, the rug glue and snapper sealant.

The air was filled with the rumble of conversation, the flickering flash of welding torches, and the smell of hot metal and chemical affixers and sealants.

The coobrambles had settled back into being ordinary weeds again, their extraordinary growth curtailed once the brambles had penetrated and removed all of the Petraseal, and most of the people who had painted the sealant, in four of the planet's communion caves.

As soon as the first-class seaman was assured that the sealant was holding the large box in place, he signaled his sailors to jet back to the amphibious landing ship.

Continuing to mutate, the fungi forced its hyphae into the microscopic fissures within the aluminum skin of the tanks, having already consumed the lining of rubber sealant.

The reglazing done on Respite had flaked from the old ship's hull along the lines of maximum stress, leaving streaks of creamy original hull material alternated with broader patches of the black, basalt-based sealant.

Canada's a bit behind in that, but sealants have been very popular here since the mid-eighties.

Odors of a new starship everywhere: hot metal, sealants, logics, polish, food, people.

The room was heavy with the scent of scorched metal, fresh sealants, and hot electronic logics.

He used arterial sealants, capillary grafts, cellular cement to lock the cardiac pump firmly in place.

But the wound sealants in synBlood were not very efficient, good mostly for minor injuries.