... strength, etc. As an ideal engineering material in construction, it is mainly used to reinforce cement, stone, wall materials, roofing, bitumen, ... reinforcing wall cracks, board cracks, plasterboard cracks and marble cement; in addition to repairing drywall joints. Best quality ability as below ... strong adhesive is valid one year 4) keep strong stick in the cold Winter 5) excellent design packing 6) not ...