Dap 12278 Elastomeric Patch and Caulking Compound, 1-Quart T

Magic. Works as advertised.

I know some folks have given this a bad review because they say it can't be sanded. Even the vendor states that this is not sandable. I read a review where one person said it sanded easily. Likely a fake review as this stuff does not sand. I use this to patch holes in areas that I don't need a super clean look such as in the garage. Recently the lower part of a panel in my garage that goes into my crawl space got damaged. It was about a six inch wide, one inch high hole. That is a fairly large hole. This is pretty thick and I first tried to fill the hole with a Bondo spreader with just this product and after a couple minutes it would start to sag, exposing the hole again. I quickly grabbed some fiberglass mesh drywall tape put it over the hole with the ElastoPatch still sagging, then used my Bondo spreader again moving the ElastoPatch back over the hole now covered with the fiberglass mesh tape and it held firmly. After letting it completely dry it looks great. As long as you spread this stuff and leave it still it does dry to a nice clean smooth surface. Some have claimed that it shrinks, but I have never had that problem. Just be sure you use it over a clean surface as it won't stick to dirty, oily surfaces.

I bought this to seal persistent large cracks. It's quite easy to apply. Adhesion to surface is acceptable after 24hr. The setback is the long drying time. After 8hr, coating is still soft though tack free. For tropical climate where rain is unpredictable, it makes usage tedious. If it rains within 5hr of application, performance may be compromised. Should have a quick drying version.

I had to fix several cracks in my plaster walls over the years. I have used regular drywall patches but the cracks would come back. I found this patch online and gave it a shot. It is now my go-to. I have fixed several cracks and they have not opened up at all. It was easy to apply and clean up. I will continue to use and recommend this patch to others.

good size for average job. container is tight and mixed perfectly. used to spread over joints that are cracking under regular spackle but i did not find that this product was any different. cracks still reappear. product is suppose to be flexible but it hardens more than regular spackle. not sure the point of this. probably wouldn't buy again. applied several times in different locations with the same unacceptable results.