If HRM 714 is applied over aluminum, would it cause the aluminum to flake and, if so, would that prevent a problem with a tight seal? HRM 714 shouldn’t cause aluminum to flake. Was this article helpful? Yes No Related Articles Can insulation be placed over 501 SEALMASTIC? After the product flashes off, will it still be harmful to the insulation? What is the best way to remove AIR-SHIELD LMP from concrete? What are the coverages on different substrates for AIR-SHIELD LMP? Can MEL-PRIME N.E. be used on Styrofoam? Will SEALMASTIC Emulsion adhere to aluminum? What can be used to remove MEL-PRIME W/B that was spilled on a horizontal surface?