Questions and Answers for Henry 885 Tropi-Cool Wet Patch White 100% Silicone Roof Leak Repair Sealant 0.90 gal.

A:  BKMom, Henry 885 TropiCool 100% Silicone would not be the product to use on a tar and gravel roof. You could use Henry 204 to repair the area as long as you apply the 204 to the surface when it is dry. Of course you will have to remove the gravel before making the repair. Just follow the instructions illustrated on the can label for a 3-course patch.

A:  Michael, after opening the container, try to use it up as soon as possible. 885 is a moisture cure product that will draw water molecules out of the atmosphere to cure. Because of this, the sealant will start wanting to cure as soon as it is exposed to the atmosphere. For smaller jobs you can use Henry 884 that comes in a caulking tube.

A:  No, don't use this on a wet roof. I did it earlier this month, and it didn't stick. I gave it a one star rating. The photo shows the strips I pulled off the roof.

A:  Yes, this is the product you need. Mike

A:  Tccc, about a year ago we changed the formula for Henry 885 TropiCool 100% Silicone sealer to make it a Wet Patch. You will need to look for the can that says Wet Patch on it to use it in wet conditions.

A:  Donald, you can use Henry 885 TropiCool 100% Silicone around chimneys between the roofing material and the brick. The service temperature of Henry 885 is from -40 degrees to 180 degrees. Henry 885 has great adhesion to a wide variety to surfaces.

A:  Mike, since we have not tested Henry 885 TropiCool 100% Silicone with deck coat we can only say that you will have to test the adhesion of the deck coat to it. Traditionally most products will not adhere to Henry 885 except Henry 887 TropiCool 100% silicone roof coating.

A:  Natalya, you could do that but it would be extremely expensive. A flat roof will generally leak in only a few places, an obvious hole, along a seam, where water stands for longer than 48 hours or where there is a roof penetration such as a vent or skylight. Your best bet would be to inspect the roof at those areas, patch any areas that look questionable with Henry 885 and then coat the roof with Henry 887 TropiCool 100% Silicone roof coating.

A:  Zhao, you should use Henry 885 TropiCool 100% silicone to repair water leaks if the roof is coated with Henry 887. Henry 209XR contains solvents and is not compatible with Henry 887.

A:  Fishtacos, we have not tested Henry 885 for use on Polyethylene. Your best bet would be to perform several adhesion tests prior to proceeding with your project.

A:  Charly, Henry 885 TropiCool 100% Silicone Wet Patch is made to be used directly out of the can. It should be the consistency of a thick cake frosting. Henry 885 should not be thinned.

A:  Rudy, Henry 885 TropiCool 100% Silicone can be used on roofs with a spray polyurethane foam surface. For styrofoam and vinyl surfaces you would need to do an adhesion test to see how well the product sticks. To test the adhesion apply the 885 and let it cure thoroughly for 48 hours. Then pull one end to test the adhesion strength.