3M Marine Adhesive Sealant 5200 Fast Cure - 3 oz., Watertight Bonding/Sealing of Fiberglass
3M Marine Adhesive Sealant 5200 Fast Cure - 3 oz., Watertight Bonding/Sealing of Fiberglass
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3M Marine Adhesive Sealant 5200 Fast Cure - 3 oz., Watertight Bonding/Sealing of Fiberglass

|50 ratings

Key item features

  • Fast Cure: Tack-free in 1-2 hours and typically cures within 48 hours for quick and efficient bonding.
  • Strong Bonds: Tough and flexible polyurethane polymer forms durable bonds that withstand vibration, swelling, shrinking, and shock.
  • Moisture-Curing: Chemically reacts with moisture to provide strong, flexible bonds above or below the waterline.
  • Versatile Use: Ideal for bonding aluminum, wood, gelcoat, and fiberglass in marine environments.
  • Recommended Applications: Suitable for fiberglass deck to hull, through hull fittings, wood to fiberglass, portholes, deck fittings, motors on fiberglass transoms, under moldings, and hull seams above and below the waterline.
  • Permanent Bonding: One-component, high-strength adhesive designed for permanent bonding and sealing in marine applications.
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Specs

Boat accessory type, Adhesive SealantBrand, 3MMaterial, PolyurethaneSize, 3 ozColor, WhiteHas written warranty, No

About this item

Product details

3M Marine Adhesive Sealant 5200 Fast Cure is a one-component, high-strength, moisture-curing, gap-filling polyurethane for permanent bonding of aluminum, wood, gelcoat and fiberglass. This fast cure version of 5200 is formulated to typically cure within 48 hours. It chemically reacts with moisture to provide strong, flexible bonds above or below the waterline. Recommended applications: fiberglass deck to hull, through hull fittings, wood to fiberglass, portholes and deck fittings, motors on fiberglass transoms, under moldings, hull seams above and below waterline, deck housings.

  • Fast-cure version of 3M
  • Tack-free in 1-2 hours and typically cures within 48 hours
  • Tough and flexible polyurethane polymer forms strong bonds
  • Capable of retaining strong bonds during vibration, swelling, shrinking or shock
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Specifications

Boat accessory type

Adhesive Sealant

Brand

3M

Material

Polyurethane

Size

3 oz

Warranty

Warranty information

All products come with a 90 Day, or longer, manufacturer warranty

Please be aware that the warranty terms on items offered for sale by third party Marketplace sellers may differ from those displayed in this section (if any). To confirm warranty terms on an item offered for sale by a third party Marketplace seller, please use the 'Contact seller' feature on the third party Marketplace seller's information page and request the item's warranty terms prior to purchase.

Warnings

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Customer ratings & reviews

4.7 out of 5 stars
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50 ratings27 reviews
How item rating is calculated
  1. 5 stars82% (41)
  2. 4 stars12% (6)
  3. 3 stars0% (0)
  4. 2 stars2% (1)
  5. 1 star4% (2)
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Showing 1-3 of 27 reviews

Jul 27, 2026
Reviewer name: steve
Item details
Size: 3 oz
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Top Notch Sealant

Top notch sealant

Helpful?4NZCM77OV78921014810
Jun 17, 2026
Reviewer name: Vince
Top Reviewer
Item details
Size: 3 oz
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Really works well

Helpful?4NZCM77OV78921014810
Jan 16, 2026
Reviewer name: WalmartCustomer
Item details
Size: 3 oz
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Same, good price

Incentivized Review
Helpful?4NZCM77OV78921014810
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