Resin layers crack off This topic has 1 reply, 2 voices, and was last updated 5 years, 6 months ago by Katherine Swift. Viewing 1 reply thread Author Posts May 12, 2019 at 1:09 pm #43093 Anne HauserGuest I did not sand before a second layer of resin. Will this eventually cause the layer to crack off for sure?😞 May 12, 2019 at 2:30 pm #43117 Katherine SwiftKeymaster No. As long as the surface is clean, a new layer of resin will bond to it. Author Posts Viewing 1 reply thread The topic ‘Resin layers crack off’ is closed to new replies.