ACST Chemical (Kunshan) Co., Ltd has more than 15 years in producing high quality sealant and waterproof products for construction, including butyl tape, bathroom tape, butyl sealant, insulated waterproof tape, acrylic latex sealant, neoprene sealant and etc. We produce both single&double-sided tape. Our tape and sealant are anti-mildew, highly watertight and do no harm to creature. We have a strong R&D team to serve our clients. Our factory locates in Kunshan City which is close to Shanghai.