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3M™ Marine Grade Silicone Sealant

3M Product Number MG Sil
Products
  • 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
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Details
  • 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.

available in white and clear
Available in white and clear
Withstands Harsh Marine Environments
Providing a high-quality seal, 3M™ Marine Grade Silicone Sealant (PDF, 441.5 Kb) 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.

Recommended Applications
  • Electrical hatch sealing
  • Dashboard components
  • Port lights
  • Above the waterline interior/exterior sealing

Designed to Endure Marine Environments
3M™ Marine Grade Silicone Sealant (PDF, 6.73 Mb) is a part of a broad range of adhesive sealants uniquely formulated for the marine market. 3M™ Marine Grade Silicone Sealant is designed for reliable sealing performance in harsh marine environments.

pneumatic applicator
Choose a 3M Pneumatic Applicator for ergonomic applications
Understanding Silane Modified Polymer (SMP) Sealants
Adhesive sealants provide strong, flexible durable elastomeric bonds that seal against the elements. These sealants excel in challenging industrial, transportation and construction applications. Choose a 3M Manual or Pneumatic Applicator for dispensing 3M adhesives sealant cartridges.

Bringing Better Ideas to the Surface through Science and Innovation
In our 3M Industrial Adhesives and Tapes Division, we apply the science of adhesion to deliver innovative solutions that improve the design and manufacturing processes of companies around the world. In the end, our technologies help customers like you deliver competitive products to the market faster and more efficiently.

Click here for more information on 3M™ Adhesive Sealants. (PDF, 797.43 Kb)


Customer Reviews
3M™ Marine Grade Silicone Sealant is rated 2.3 out of 5 by 3.
Rated 1 out of 5 by from Maybe a good product bad certainly a bad applicato I just bought the product on line. As reported by others, the applicator does not stay on the tube. Wind & a pitching deck make application of the product a nitemare. This product should be recalled as 3M has apparently known about the problem a long time.
Date published: 2019-08-26
Rated 1 out of 5 by from Terrible nozzle The product may be fine, but the tube and nozzle are terrible. The nozzle doesn’t stay attached to the tube, so you need to hold it on with one hand while squeezing the tube with the other. It makes application awkward and messy. If you don’t hold it on, the sealant gets everywhere. I thought I got a bad tube, so bought another one for $13 and it did the same thing. I expect better from 3M.
Date published: 2019-05-22
Rated 5 out of 5 by from Great Stuff I am never disappointed with this product, this sealant is the best I have ever work with.
Date published: 2015-11-04
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Large Volume Order

If you are considering a large purchase of this or other 3M Industrial Adhesives and Tape products, our inside sales team is ready to help by providing additional information and options. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we'll do our best to prove that we should be your supplier of choice.


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