Devcon 5 Minute Epoxy Gels Fast-curing, thixotropic, non-migrating adhesive designed for filling gaps and bonding rough or smooth surfaces. Disappearing blue coloring tells you when the product is thoroughly mixed for easy use. Good solvent resistance to gas, oil, and other solvents. Non-sag which makes it ideal for use on vertical surfaces. Excellent gap filling qualities without tremendous shrinkage Pack of 1