- +/- 50% Joint Width Movement
- Medium Modulus Building Sealant for Expansion Joints
- Structural and Non-Structural Glazing of Glass, Metals, and Plastics
- Sealant Estimator Chart
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Dow Corning 795 Silicone Building Sealant - Black
|Price:||$15.50 & FREE Shipping on orders over $49. Details|
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Specifications for this item
|Item Weight||1 pounds|
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Top Customer Reviews
The Dow 795 is thick and gooey, always best to mask ALL areas you don't want it to attach to or want to remove the excess from. It is easy to apply with a caulking gun. Dow 795 grabs quickly, holds tenaciously, and I have not had a leak in boat windows or hatches installed with the product. It has worked equally well on fiberglass, plastic resin forehatch frames, and wood. I've used black and white with equal success. Clean up with mineral spirits works well. IIRC I've used cheap rubbing alcohol in the past as well but suggest you try it out as my memory fades on occasion... As with painting, proper surface cleaning and preparation are highly important.
Within the parameters of my experiences over ten years of use on my boats, I recommend it highly.
It is easy to use, has a good shelf life and is easy on the budget!
As with all hatch repairs, follow clean procedures, be sure to line up the work before sealing and give the sealant pleanty of time to get full strenght before usung / moving the lens-frame after applying. Air temp minimum is critical too.
I also made the mistake of buying a few tubes and tried to use some a few months past it's expiration date (1 year after purchase). It had completely lost it's ability to cure and I had to throw all remaining tubes in the garbage.
The port on my boat is like a skylight, without a frame, except for the recessed area within the fiberglass.
Used painters tape to protect areas where I didn't want the overflow, which helped a lot, and once cured, I took a knife to what the tape didn't protect.
Read the label, and have the proper clean up materials, and be sure to have a dripless caulk gun! This stuff is something else!
Most Recent Customer Reviews
as window glazing compound goes, it does not get any better than this. outstanding product.Published 6 months ago by mallione
This might take a long time to cure but it is great sealant. Used this to rese3al a 46 gallon bowfront and the aquarium looks better now than it did when it was new.Published 6 months ago by polyspecific
This stuff is great for sealing certain items to my sailboat deckPublished 8 months ago by Bruce3966
No primer needed, easy to apply, economical... This is the best product out there for ponding plexiglass/acrylic to aluminum.Published 11 months ago by Christopher Hubbell