4200 Fast Cure White - Cart.
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3M 4200 Fast Cure White (Cart.) is a one-part marine adhesive sealant polyurethane that chemically reacts with moisture to form flexible bonds and watertight, weather-resistant seals. It’s paintable and sandable, and it’s designed for applications where you may want easier disassembly compared with 3M 5200.
Key Features
- One-part polyurethane sealant/adhesive that chemically reacts with moisture
- Flexible bonds with good adhesion to wood, fiberglass, gelcoat, certain plastics, and metals
- Paintable and sandable
- Forms watertight, weather-resistant seals on joints and hardware above or below the waterline
- Approximately half the strength of 3M 5200, helping allow disassembly of parts
Intended Use
- Marine adhesive/sealant applications on wood, fiberglass, and gelcoat
- Sealing joints and bonding marine hardware above or below the waterline
- General purpose bonding/sealing where a paintable, sandable polyurethane sealant is desired
Product Details
- • Brand: 3M (tag: brand:3m)
- • Product name: 4200 Fast Cure White - Cart.
- • SKU: 71-06560
- • Color: White
- • Product type: Caulks, Sealants & Adhesives
- • Adhesive/sealant chemistry: one-part general purpose polyurethane that chemically reacts with moisture
- • Bonding/adhesion: wood, fiberglass, gelcoat, certain plastics, and metals
- • Finish: paintable and sandable
- • Seal performance: watertight, weather-resistant seals on joints and hardware above or below the waterline
- • Strength note: approximately half the strength of 3M 5200 to allow disassembly of parts
- • Net weight (variant data): 388 grams
- • Barcode (variant data): 51135065600
Parts Desk Insights
Best Use Case: Use 3M 4200 Fast Cure White when you need a moisture-curing polyurethane that bonds and seals well in marine environments and you want a paintable, sandable finish. It’s also a solid choice for joint/hardware installations where future removal of bonded parts may be desired.
Common Issues: For best results, apply to properly prepared mating surfaces and follow the sealant’s installation best practices (especially moisture-cure conditions). Because this is a flexible polyurethane, allow time for curing before subjecting the joint to stress or attempting final finishing; always test paint compatibility on the specific surface/finish you’re working with.
Related Products & Accessories
- Browse related 3M sealants & adhesives - Explore more caulks, sealants, and adhesives for bonding and sealing projects.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
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.