We have a shop with upright logs,the chinking looks like black tar and is hard and cracking what do you suggest we use to seal the cracks. Cracks range from 1/8 to 1/4 someplace more. thank you
Call 800-564-2987. They may have something that will work for you. You may be able to just apply Perma Chink right over it.
We will never sell your address or spam you.