Suzhou Captain Technology Co., Ltd. Has been focusing on the butyl waterproofing & sealing technology for over 10 years. The company adheres to self innovation, independent formulas developing, R&D equipment, new production design, and strives to create high-quality non-sulfide butyl adhesive products like PVDF butyl self-adhering exposed waterproofing membrane, TPO butyl self-adhering exposed waterproofing membrane, AL butyl self-adhering exposed waterproofing membrane, HDPE butyl self-adhering waterproofing membrane and various butyl tapes