Waterproof Sealant Mastic Multipurpose Repair Sealing Clay Cement Crack Filler

5/10/15pcs Sealant Clay. INDUSTRIAL-GRADE MATERIALS: Very high elasticity. Automatically fix objects after 10 minutes airs drying. HIGH PLASTICITY: Super soft for deformation. MULTI-PURPOSE: Can be used for household cracks/holes filling, such as pipe wall groove-filling, airs conditioning pipe wall gap-filling, water pipe butt filling.