Gardner STA-KOOL 390 Series SK-3901 Acrylic Sealant, White, Liquid, 1 gal (Pack of 4)

Sta-Kool 390, white acrylic sealant flexible roof patch is an extra tough, flexible repair compound designed to patch splits, cracks and holes in roof surfaces. This water-based patch dries quickly to a non-tacky surface which offers great adhesion to all coatings applied over it. It is designed to repair cracks and holes up to 1 in W. Sta-Kool 390 should be used with universal patching fabric. Sta-Kool 390 remains flexible while it expands and contracts with your repair, making it ideal to use with all Sta-Kool products.