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Jamestown Distributors(800) 497-0010
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3M 3000 UV is a one-part, moisture-curing elastomeric marine sealant with exceptional UV resistance. Use it on portholes, deck hardware, trim, and other cosmetic seams for a strong, water-resistant seal that won't fade or peel. Its ideal for sealing dissimilar materials, including polyester, wood, aluminum, concrete, glass, stone, ceramic, and most lacquered metals. Low-VOC formula cures without isocyanates, so it's less toxic for you and your work environment. Use above or below the waterline.
Available in a 10 oz. cartridge. 3000UV is available in Black or White.
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Easy-to-use, single-component cartridge that fits a standard caulk gun (sold separately).
Superior UV resistance ensures product will not fade or degrade with extended UV exposure so it's ideal for cosmetic sealing projects.
Fast 50-minute skin time still provides ample working time.
Low-VOC formula contains no isocyanates so it is less toxic for you—and your work environment.
Multiple uses from a single cartridge because it seals many different types of materials, such as wood, polyester, glass, aluminum, and many more.
Can be painted when wet to improve its appearance.
Versatile sealant produces a removable bond on wood and fiberglass.
Can be painted when wet with water-based paints. Test solvent-based paints before using.
Resistance to Dilute Acids and Bases
A 1/8 inch (3mm) bead yields 126 lineal feet (38 lineal meters)
Hardness, Shore A
Below Water Line (yes/no):
Silane Modified Polymer
Number Of Parts:
would this product work as a seam sealer on a wooden boat over a cotton caulked seam below the water line?
This product is not recommended for sealing planks. My first choice would be Interlux seam compound, followed by a polysulfide sealant , then urethane sealant.
Can anyone say how strong is the bond this product has to say, a painted deck? I am looking more for a sealant than an adhesive, that is, I want to be able to remove and reseal the fitting at some point. I am having trouble finding technical information about this.
3M 3000UV should seal and be removable at a later time.
JD Tech Team
Would not buy again
I was interested in a black sealant for a built in cooler on my boat. 5200 would not have made sense as at some point it may need to be removed/replaced and there was no need for a permanent seal. I opted for this over 4000UV and made the wrong decision. The product was soft, flaked away easily and if touched at all with acetone, smeared and made a huge mess. I ended up scraping this away and redoing it with 4000UV, which I would highly recommend for a non-permanent use.
Works excellent for what it is designed for.
Sun resistant sealing sun roof for RV, stays pliable and can be removed if needed. Used in place of lesser quality elastomeric. Sealed up a couple of thru hull mounts on my sail boat as well. Stuff is awesome and can be removed. Used to cover over 3M 5200 as well with very good results.