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WEST MARINE Marine Silicone Sealant

Use wherever a flexible, removable seal is required

A specially-formulated marine silicone that won't sag, shrink or turn yellow. Unaffected by sunlight, weathering and most chemicals and solvents. Can be used above and below the waterline wherever a flexible, removable seal is required. Excellent for bedding deck fittings and hardware that you may want to remove at some time. Also good for insulating between dissimilar metals to prevent galvanic corrosion. Bonds to fiberglass, wood, plastic, glass and metal. Remains flexible from -70°F to 480°F.

  • Formulation: One-part silicone sealant
  • Recommended Usage: Can be removed easily. Bonds to non-oily woods, metal, fiberglass, glass, plastics
  • Material Incompatibilities: None.
  • Compatible with acrylics. Not as strong as polyurethane
  • Cure Time: Tack free: 1 hr; complete cure: 24 hrs.
  • Cleanup: Soap and water
  • Removal: Mechanical removal
Customer Reviews
Product Models
Description WM Model # MFG Part # Availability Price Quantity  
Marine Silicone Sealant, Clear, 2.8oz. Tube 542704 542704
In stock online.

$12.99

Marine Silicone Sealant, White, 2.8oz. Tube 542712 542712
In stock online.

$12.99

Marine Silicone Sealant, Clear, 10oz. Tube 542738 542738
In stock online.

$18.99

Marine Silicone Sealant, White, 10oz. Tube 542746 542746
In stock online.

$18.99

Product Description

Use wherever a flexible, removable seal is required

A specially-formulated marine silicone that won't sag, shrink or turn yellow. Unaffected by sunlight, weathering and most chemicals and solvents. Can be used above and below the waterline wherever a flexible, removable seal is required. Excellent for bedding deck fittings and hardware that you may want to remove at some time. Also good for insulating between dissimilar metals to prevent galvanic corrosion. Bonds to fiberglass, wood, plastic, glass and metal. Remains flexible from -70°F to 480°F.

  • Formulation: One-part silicone sealant
  • Recommended Usage: Can be removed easily. Bonds to non-oily woods, metal, fiberglass, glass, plastics
  • Material Incompatibilities: None.
  • Compatible with acrylics. Not as strong as polyurethane
  • Cure Time: Tack free: 1 hr; complete cure: 24 hrs.
  • Cleanup: Soap and water
  • Removal: Mechanical removal

Specs

West Advisor

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REVIEW SNAPSHOT®

by PowerReviews
West MarineMarine Silicone Sealant
 
3.8

(based on 12 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (1)

50%

of respondents would recommend this to a friend.

Pros

  • Easy to use (10)
  • Weather proof (9)
  • Protects well (7)
  • Visually pleasing (7)

Cons

  • Messy (3)

Best Uses

  • Outdoors (8)
  • Quick fix (5)
  • Indoor (3)
    • Reviewer Profile:
    • Advanced (7), Casual/ recreational (4)
    • Was this a gift?:
    • No (10)

Most Liked Positive Review

 

Very Good Product, Would use again!

I used this product to seal the holes in the transum where I screwed the brackets for the swim platform. I wouldn't hesitate to use this product anywhere on the boat for openings that...Read complete review

I used this product to seal the holes in the transum where I screwed the brackets for the swim platform. I wouldn't hesitate to use this product anywhere on the boat for openings that need to be sealed and waterproofed. I think 10oz was a little too much, so get a smaller tube a little goes a long way and if your sealing a big hole you better find something else.

VS

Most Liked Negative Review

 

The tube is a failure; buy the 3M brand

The small squeeze-type tube is terrible. The cap includes a sharp point for breaking the seal on the tube, but once broken, the seal becomes a flap that keeps obstructing the flow of...Read complete review

The small squeeze-type tube is terrible. The cap includes a sharp point for breaking the seal on the tube, but once broken, the seal becomes a flap that keeps obstructing the flow of the sealant. Unscrew the applicator cap, clear, repeat, repeat, repeat. What a mess. The 3M tube doesn't do this.

Reviewed by 12 customers

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Displaying reviews 1-10

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5.0

Excellent silicone

By Rmontero

from San Juan, Puerto Rico

About Me Advanced

Verified Buyer

Pros

  • Easy to Use
  • Great bonding
  • Protects Well
  • Visually Pleasing
  • Water tight sealant
  • Weather Proof

Cons

    Best Uses

    • Indoor
    • Outdoor
    • Quick Fix

    Comments about Marine Silicone Sealant:

    Excellent product great bonding agent in Polyethylene and fiberglass.

    • Was this a gift?:
    • No
     
    5.0

    It does the job

    By Dscott

    from New York

    About Me Advanced

    Verified Buyer

    Pros

    • Easy to Use
    • Protects Well
    • Visually Pleasing
    • Weather Proof

    Cons

      Best Uses

      • Hull

      Comments about Marine Silicone Sealant:

      It's silicone. It works!

      • Was this a gift?:
      • No
       
      4.0

      Good stuff

      By Jeffro

      from Moss bluff

      About Me Beginner

      Verified Buyer

      Pros

      • Easy to Use
      • Protects Well
      • Visually Pleasing
      • Weather Proof

      Cons

        Best Uses

        • Outdoor
        • Wood Trim

        Comments about Marine Silicone Sealant:

        None

        • Was this a gift?:
        • No
         
        3.0

        Good stuff

        By Ek

        from CT

        About Me Casual/ Recreational

        Verified Buyer

        Pros

        • Easy to Use
        • Weather Proof

        Cons

        • Messy

        Best Uses

        • Outdoor
        • Quick Fix

        Comments about Marine Silicone Sealant:

        Used for years but the left over goes hard in the tube once you open it.

        • Was this a gift?:
        • No
         
        5.0

        Great sealant

        By Mr Marvin

        from Galveston, tx

        About Me Advanced

        Verified Buyer

        Pros

        • Easy to Use
        • Protects Well
        • Visually Pleasing
        • Weather Proof

        Cons

          Best Uses

          • Quick Fix

          Comments about Marine Silicone Sealant:

          Does what is says. Great all around sealant for the boat.

          • Was this a gift?:
          • No
           
          2.0

          one time use

          By Golightly

          from Marina Del Rey

          About Me Casual/ Recreational

          Verified Buyer

          Pros

            Cons

            • Difficult to Use
            • Messy

            Best Uses

            • Outdoor

            Comments about Marine Silicone Sealant:

            sealant was difficult to use and messy. I needed to use it again and it was clogged. Would be good if it had a regular cap and some additional nozzels

            • Was this a gift?:
            • No
             
            4.0

            Good sealant for the price

            By agufra

            from Fort Myers, FL

            About Me Advanced

            Verified Buyer

            Pros

            • Easy to Use
            • Good For The Price
            • Protects Well
            • Visually Pleasing
            • Weather Proof

            Cons

            • None
            • None so far

            Best Uses

            • All Around The Boat
            • Indoor
            • Outdoor
            • Quick Fix

            Comments about Marine Silicone Sealant:

            Used the product as a general sealant all around the boat, specially outside.

            It works

            • Was this a gift?:
            • No
             
            3.0

            Adequate above the waterline silicone sealer

            By DocBrad

            from Metropolitan Detroit

            About Me Casual/ Recreational

            Verified Buyer

            Pros

            • Easy to Use
            • Weather Proof

            Cons

              Best Uses

              • Outdoor

              Comments about Marine Silicone Sealant:

              Note that this silicone product has the characteristic smell of acetic acid when used. May not be appropriate for re-seating port lights, based on commentary that accompanies some on-line instructions for port light re-sealing/re-seating. Otherwise, appropriate for above-the-water line sealing projects.

              • Was this a gift?:
              • No
               
              5.0

              "No second guessing with this product!"

              By Smitty

              from Middle River, MD

              About Me Advanced

              Verified Buyer

              Pros

              • As advertised
              • Easy to Use
              • Protects Well
              • Visually Pleasing
              • Weather Proof

              Cons

              • No Problem

              Best Uses

              • Outdoor
              • Quick Fix

              Comments about Marine Silicone Sealant:

              I needed to caulk the seams of a repaired deck panel in my boat. The West Marine silicone caulk performed as described, flowing smoothly and making an attractive finished appearance.

              • Was this a gift?:
              • No
               
              4.0

              Very Good Sealant

              By Capt. Mick

              from Lake Erie Ohio

              About Me Advanced

              Verified Buyer

              Pros

              • Easy to Use
              • Protects Well
              • Visually Pleasing
              • Weather Proof

              Cons

                Best Uses

                • Indoor
                • Outdoor

                Comments about Marine Silicone Sealant:

                I like this sealant very much. I couldn't give it a perfect rating because I don't yet know how it will stand up over time. The one con that I will mention is that the tube was very hard to puncture.

                • Was this a gift?:
                • No

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