

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The 3M 7000120490 is a marine-grade adhesive and sealant formulated for permanent bonding and sealing applications in wet and submerged environments. Sold in a 3 oz cartridge, this product is white in color and ships in cases of 6 units. It delivers a flexible, watertight bond suited to the demanding moisture exposure found in marine construction and repair. Marine contractors, boat builders, and experienced service technicians typically specify this type of product where a long-term, waterproof seal is required on hull fittings, deck hardware, and through-hull penetrations.
This sealant is used in both recreational and commercial marine applications where a permanent, vibration-resistant bond is needed. Typical installation scenarios include bedding deck hardware, sealing hull penetrations, and bonding dissimilar materials subject to constant water contact. The 3 oz size suits detail work and smaller repair jobs where a full-size cartridge is unnecessary. Cases of 6 allow service shops and boat yards to stock efficiently for ongoing work.
Designed as an OEM-style marine adhesive and sealant for use on fiberglass, wood, and metal surfaces commonly found in recreational and commercial marine construction and repair.
Application is typically performed by marine contractors, boat builders, or experienced marine service technicians familiar with adhesive sealant products. Surfaces should be clean, dry, and free of oils or old sealant before application. Follow all applicable safety data sheet guidance for ventilation and skin contact during use. Allow full cure time before immersion or applying mechanical load to the bond.
Thanks for subscribing!
This email has been registered!