3M Marine Grade Silicone Sealant - Clear, 3 oz., Seals and Waterproofs
3M Marine Grade Silicone Sealant - Clear, 3 oz., Seals and Waterproofs
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3M Marine Grade Silicone Sealant - Clear, 3 oz., Seals and Waterproofs

|28 ratings

Key item features

  • High-Quality Sealant: High quality silicone sealant designed for marine environments
  • Versatile Use: Suitable for above the waterline interior/exterior sealing
  • Mildew Resistant: Formulated to resist mildew, non-yellowing, and non-sagging
  • Strong Adhesion: Adheres to bare and painted metal, fiberglass, glass, non-oily woods, many plastics, and abraded rubber
  • Moisture-Curing: Cures with moisture for a durable and long-lasting seal
  • Weather-Resistant: Engineered to withstand harsh marine environments and high temperatures
  • Flexible Application: Remains flexible even after years of exposure, non-shrinking and non-sagging
  • Recommended Uses: Ideal for electrical hatch sealing, dashboard components, port lights, and other above waterline applications
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Specs

Industrial sealant type, Marine GradeRec. use, GlassRecommended surface, Metal, RubberRec location, Indoor, OutdoorBrand, 3MColor category, Clear

About this item

Product details

Providing a high-quality seal, 3M Marine Grade Silicone Sealant, is a one-component cure, silicone sealant engineered to withstand the harsh marine environment. This weather-resistant sealant is formulated to resist mildew and form a non-yellowing seal for above waterline applications. In addition, this marine sealant is high-temperature resistant and remains flexible even after years of exposure. The non-shrinking and non-sagging properties of this product offer simple and efficient application. This marine-grade sealant adheres to bare and painted metal, fiberglass, glass, non-oily woods, plastics and abraded rubbers.

3M 08019 Marine Grade Silicone Sealant - Clear, 3 oz.

  • High quality silicone sealant
  • For above the waterline interior/exterior sealing
  • Mildew resistant, non-yellowing, non-sagging formula
  • Adheres to bare and painted metal, fiberglass, glass, non-oily woods, many plastics and abraded rubber
  • Moisture-curing
  • 3M Marine Grade Silicone Sealant is designed for the harsh marine environment. Formulated as mildew and high-temperature resistant, this sealant provides a durable and long-lasting seal
  • Recommended Applications: Electrical hatch sealing, Dashboard components, Port lights, Above the waterline interior/exterior sealing


info:
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Specifications

Industrial sealant type

Marine Grade

Rec. use

Glass

Recommended surface

Metal, Rubber

Rec location

Indoor, Outdoor

Warranty

Warranty information

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Customer ratings & reviews

4.4 out of 5 stars
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28 ratings21 reviews
How item rating is calculated
  1. 5 stars79% (22)
  2. 4 stars7% (2)
  3. 3 stars4% (1)
  4. 2 stars0% (0)
  5. 1 star11% (3)
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Showing 1-3 of 21 reviews

Jul 17, 2026
Reviewer name: Cathy
Item details
Color: Clear
Size: 0.25
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

It Works?

Did exactly what I wanted. Was very messy.

Incentivized Review
Helpful?1PYM0ZF8JVCD38752530
Nov 9, 2024
Reviewer name: Jackie
Top Reviewer
Item details
Color: Clear
Size: 0.25
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Super Durable!

I have use this product for about 18 years. It is one of the few products that I can say has maintained its quality. Because it's a marine product it is the most repellent of water and it last a long time.

Incentivized Review
Helpful?1PYM0ZF8JVCD38752530
Oct 4, 2025
Reviewer name: Chloe
Item details
Color: Clear
Size: 0.25
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great stuff

Put it on before we got to the lake and it was dried by the time we got to the lake. No leaks and it did the job!

Incentivized Review
Helpful?1PYM0ZF8JVCD38752530
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