The 3M Patch Plus Primer Lightweight Spackling is a creative compound that has all the properties of a primer. It gives a brilliant concealing power that there are no glossy or dull spots after painting. This spackling doesn’t shrink or crack and is ready-to-use in 30 minutes.Features Saves time and provides with expert results Hides repairs after painting Spackling compound and primer in one--no need to prime Makes repairs 3X faster than a leading competitor Professional-looking results in one easy step No flashing (won't change paint sheen) No shrinking or cracking Wall is ready to paint in 30 minutes Firmly holds nails and screws Specifications Type: Patch Plus Primer Putty? Size: 8 fl. oz. Color: Dries white? Warranty 1 Year