Question : What are sealants?

Answer : Sealants are the flexible materials to be used for sealing expansion joints, construction joints gaps or cracks to protect concrete structure from moisture, gases, chemical substances or any contaminants.

Question : What is the suitable sealant to be used for sealing joint of runway or taxiway of airport?   

Answer : The sealant, such as Igas-K, must be resistant to jet fuel oil, traffic and mechanical impact. The sealant should also be a hot pour type that will be suitable for a large area.

Question : How to close or seal the gap between the existing and new building?

Answer : The suitable system is Sikadur Combiflex  which consists of Combiflex strip or hypalon sheet and epoxy adhesive (Sikadur-31 CF Normal). This system will withstand a large movement because of high elongation property and it can also protect leakage of the joint.

Question : What is the suitable sealant for sealing joint between pre-cast concrete panel of high-rise building?

Answer : The sealant, such as SikaHyflex -160 Construction, to be used for sealing joint between pre-cast concrete panel should be polyurethane sealant due to excellent adhesion to most substrates, good flexibility, good weather resistance and it can be over-painted.

Question : What is the suitable joint sealant to be used for sealing joint of factory’s floor? 

Answer : The sealant, such as Sikaflex-PRO 3WF, to be used for sealing floor joint should have a good flexibility and mechanical resistance.