silicone caulk

Flexible waterproof sealant

Silicone caulk is a flexible, waterproof sealant used to fill gaps and joints around bathtubs, sinks, windows, and other surfaces where water resistance matters.

Unlike acrylic caulk, silicone stays flexible after curing and won't crack with temperature changes, but it can't be painted over: The silicone caulk around the shower finally needs replacing.

Related
  • sealantGap-blocking substance
  • waterproofImpervious to moisture
  • tubeHollow cylindrical passage
  • gunProjectile-launching weapon
  • beadPierced ornament for threading

squeeze · bathroom · kitchen sink · weatherstrip · mold · flexible · rubbery · joint · adhesive · tub · window · crack · smooth · finger · drying · drying time · clear · white

Categories
Opposites
sealant vs. solvent/remover

silicone caulkadhesive remover

Solvent for bonding agents

paint stripper · mineral spirits · acetone · degreaser

flexible sealant vs. rigid filler

silicone caulkconcrete

Solid building mixture

mortar · plaster · cement · wood putty · grout

waterproof barrier vs. porous/absorbent material

silicone caulksponge

Absorbent cleaning material

cloth · untreated wood · drywall · paper · cotton batting

Family

silicone, caulk, silicon, silica, silicate, silicosis, caulking, caulked, caulker

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G