Review on Dow Corning Silicone Building Sealant: Superior Sealant for Lasting Structural Protection by Charles You

I have used Dow 795 Sealant in the past with great success for sealing acrylic or polycarbonate windows, opening wickets and hatches on my boats that have no other fasteners. In this case I inserted a 3/8 inch thick sheet of polycarbonate into the sunroof's slotted wood frame. Dow 795 is thick and sticky, it is always best to cover ALL areas where you do not want it to stick or remove. Easy to apply with a caulking gun. The Dow 795 cures quickly, holds tight and I have had no leaks in boat windows or hatches installed with this product. frame and wood. I've used black and white with equal success. Cleaning with white spirit works well. IIRC I've also used cheap rubbing alcohol in the past but I suggest you try it as my memory fades at times. As with painting, proper cleaning and surface preparation is essential. Given the parameters of my ten years of experience with my boats, I highly recommend this.