Below is the table which shows the top 6 best waterproof caulk 2018. Each and every waterproof caulk is chosen by our specialist reviewers.

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# 1 - Gorilla White 100 Percent Silicone Sealant Caulk, 10 Oz, White

Tough, white 100% silicone sealant. Gorilla sealant is great for kitchen, bath, window, doors, auto, marine Plumbing, gutters and more! ready for water exposure in just 30 minutes, this waterproof sealant is mold & mildew resistant. The clear silicone sealant and won't yellow, shrink or crack over time! directions: all surfaces should be clean and free of dirt, grease, oil and old sealant. Best if used above 40F. Cut tip to desired bead size. Apply sealant with a caulking gun. Smooth bead immediately after application, before a skin forms. Store in cool, dry location. Clean-up: wipe wet sealant off project…


  • Incredibly versatile 100% silicone sealant that dries translucent white
  • Best for sealing gaps or cracks between two surfaces; works on window, door, kitchen, bath, gutters, auto, marine and more
  • Indoor/outdoor; 100% waterproof
  • Won't yellow, shrink or crack
  • Mold and mildew resistant


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# 2 - Gorilla 100 Percent Silicone Sealant Caulk, 2.8 Oz., Clear

Gorilla 100% Silicone Sealant, 2.8 oz., Clear


  • Incredibly versatile 100% silicone sealant that dries translucent clear
  • Best for sealing gaps or cracks between two surfaces; Works on window, door, kitchen, bath, gutters, auto, marine and more
  • Indoor/outdoor; 100% Waterproof
  • Won't Yellow, shrink or crack
  • Mold and Mildew resistant


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# 3 - General Electric Ge360 Kitchen And Bath Silicone I Caulk, 2.8-ounce, Clear

GE Silicone I Kitchen & Bath – Permanently Waterproof - Caulk that keeps water out is a necessity in kitchen, bathroom and plumbing applications. GE Silicone I* Kitchen & Bath caulk is permanently waterproof and it will not shrink, crack, or crumble over time like acrylic. Silicone chemically cures while acrylic is water-based (it simply dries as water escapes). Some acrylics can shrink up to 25 percent, leaving gaps and cracks for water to seep through. Those leaks can lead to water damage and mold growth. Why 100 percent silicone? Unlike acrylic, silicone is permanently: Waterproof—Acrylic breaks down in water…


  • Permanently waterproof
  • 100% Silicone
  • Typical Uses: Showers, tubs, sinks, tile, countertops and fixtures
  • Adheres to: Most ceramic tile, laminate, porcelain, glass, metal, plastic, granite and wood
  • Meets federal specifications: TT-S-00230C; TT-S-001543A/ASTM C-920, Type-S, NS Class 25, use NT, M, G, A & O test requirements


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# 4 - Gorilla Clear 100 Percent Silicone Sealant Caulk, 10 Oz, Clear

Tough, clear, 100% silicone sealant. Gorilla sealant is great for kitchen, bath, window, doors, auto, marine Plumbing, gutters and more! ready for water exposure in just 30 minutes, this waterproof sealant is mold & mildew resistant. The clear silicone sealant and won't yellow, shrink or crack over time! directions: all surfaces should be clean and free of dirt, grease, oil and old sealant. Best if used above 40F. Cut tip to desired bead size. Apply sealant with a caulking gun. Smooth bead immediately after application, before a skin forms. Store in cool, dry location. Clean-up: wipe wet sealant off project…


  • Incredibly versatile 100% silicone sealant that dries translucent clear
  • Best for sealing gaps or cracks between two surfaces; works on window, door, kitchen, bath, gutters, auto, marine and more
  • Indoor/outdoor; 100% waterproof
  • Won't yellow, shrink or crack
  • Mold and mildew resistant


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# 5 - Dap 08641 Clear Silicone Sealant 9.8-ounce

Dap Inc. 10.3-oz. Cartridge, clear, silicone sealant. Protect and seal with 100% silicone rubber. Waterproof, weatherproof, won't crack, crumble or dry out.


  • Protect and seal with 100% silicone rubber
  • Waterproof, weatherproof, won't crack, crumble or dry out
  • Cured sealant is mildew resistant
  • Can be used indoors or outdoors
  • Meets ASTM C920, Specification C719, Class 25