• CURES FAST One-part adhesive sealant requires no mixing, typically cures in as little as 24 hours so you can get back on the water faster
  • SEALS ABOVE AND BELOW WATERLINE – Ideal for joints, rub-rails, access plates and other areas shielded from the sun
  • LONG LASTING FORMULA Tough polymer resists weathering and salt water
  • WON’T CRACK OR PEEL – Stays very flexible, retaining strong bonds even during vibration, structural movement or shock
  • ALLOWS FOR DISASSEMBLY WITHOUT DAMAGE – Medium-strength, semi-permanent adhesive sealant allows for bonded parts to be removed after prolonged use

Used to seal the exterior corner metal trim strip on the overhead structure on a Class C motorhome 2 months ago. It adhered well and provided a water tight seal. It is a bit messy so cut the application tip as small as possible to have a 3/16" bead or less flowing out. It flows very easy. You will not be able to clean up until after it cures. Appeared to have cured after 24 hours. After three very rainy trips it has not failed. Note it was applied on a very clean surface onto a fiberglass & alum corner seam covered with sealtite tape. Over flow from out under the corner metal trim screw trim can be be trimmed back with a razor knife once it the sealant if fully cured.

The best Marine sealant

But don't use it if you ever want to remove the item being installed. This is for permanent installations. This is also very messy to use, so have solvent and a shop towel handy.

Works as promised. It's a little thicker than the regular 4200, so it doesn't flow out of holes or cracks on vertical surfaces.

used this to install trim tabs on our boat. Worked great, very good quality marine sealant

As advertised and wow does it seal stuff up. I installed a swim platform and boy was it good stuff on. Caulking the holes.

Easy to use, it has the perfect flow and consistency to lay down a nice bead. A bit tough to clean up and it would be nice if you didn’t have to throw out the remaining caulk after using it.