ACST was established back in the 80ÿ®s as a trading company. We currently have factory plants in both Thailand and China. Our Chinese plant was built in 1995 to provide sealants and waxy undercoating to the local market. Since then we have developed different types of sealants and sealant tapes suitable for different markets. Our company specializes in Butyl tapes and sealants as it is currently the most environmental products on the market. We are also focusing on sealants that are more environmental. ACST is focusing on providing the most economical and environmental solution to you. Please feel free to contact ACST with your inquiry and we are more than happy to assist you