3M - 5200 Fast Cure Marine Adhesive Sealant White 295ml - THR-06520
No restocking fees on eligible returns
You have 30 days to request a return. All sale items are final sale.
Customer pays return postage. Return postage is reimbursed if we made a mistake.
3M Marine Adhesive Sealant 5200 Fast Cure White 06520 is a high-strength, permanent polyurethane adhesive sealant designed for demanding marine bonding and sealing applications above and below the waterline. This fast-cure formula provides a strong waterproof bond while remaining flexible enough to handle hull movement, vibration, swelling, and shock.
Key Features
- 3M Marine Adhesive Sealant 5200 Fast Cure
- Part numbers: 06520 / THR-06520
- White formula
- 295 ml / 10 fl oz cartridge
- Fits standard caulking guns
- One-part moisture-curing polyurethane paste
- Tack-free in approximately 1–2 hours
- Full cure in approximately 24–48 hours
- Permanent waterproof bond
- Tensile strength up to 1,000 psi
- Shore A hardness: 60
- Bonds to fiberglass, gelcoat, wood, plastics, and metals
Intended Use
Ideal for permanent marine bonding and sealing applications such as hull-to-deck joints, through-hull fittings, portholes, struts, deck hardware, transom plates, and other structural or semi-structural marine installations.
Fitment Notice
3M 5200 is intended for permanent bonding. For parts that may need future removal, such as electronics, lights, inspection covers, or serviceable hardware, a less permanent sealant such as 3M 4200 or 4000 UV may be more appropriate.
When This Product Needs Replacement
Replace the cartridge if the sealant has expired, hardened in the tube, separated, or no longer dispenses smoothly. Reseal bonded areas if the original sealant is cracked, lifting, leaking, or no longer maintaining a watertight bond.
Application Notes
Apply to clean, dry surfaces free of oil, wax, dust, and loose material. Cut the nozzle to the desired bead size, apply evenly, tool the bead as needed, and allow proper cure time before exposing the bond to heavy load or full service conditions.
Alternate/Superseded Part Numbers
Common references: 06520 and THR-06520.
Parts Desk Insight
5200 Fast Cure is the right choice when the bond is meant to stay permanent. It is not ideal for parts you may want to remove later, because removal can damage gelcoat, fiberglass, wood, or painted surfaces.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
Shipping information
Free standard shipping in Canada on eligible orders over $150 CAD after discounts and before taxes, up to 15 kg. Freight, oversized, remote-area and express exclusions apply. See our shipping policy.
In-stock at Marisol: usually ready for pickup the same day. Supplier-stock items: usually ready for pickup within 24 hours. Wait for your pickup-ready confirmation.
In-stock items receive priority shipping processing. Supplier-stock items generally ship within 1–3 business days. Special-order timing varies. Carrier delivery time is additional.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.
No restocking fee applies to eligible returns. Customers arrange and pay return postage unless we made a mistake, in which case we reimburse return postage. See the return policy for eligibility and exclusions, or contact us.