The outstanding performance of POLY TETRA FLUORO ETHYLENE is being evaluated as exceptional in all industries since its birth, for one half century. Especially, it has been widely applied to advanced industries.

HAN YANG CHEMICAL CO., LTD. Began with the production of NASA SEAL(Thread Seal Tape) ii 1983, and it has been developing 100% POLY TETRA FLUORO ETHYLENE using special expansion methods since 1987, to supply ePTFE NASA SEAL? ePTFE POLYTOP SEAL?(Joint Sealant), ePTFE GASKET TAPE, PVC MAGIC TAPE and PVC FILM.

ePTFE POLYTOP SEAL and ePTFE NASA SEAL are the perfect sealant products with exceptional softness and resilience which helps it maintain continued restitution for maximised speedy workability, economic effect, and clean sealing effect, not to mention its air tight effect under severe environmental conditions due to heat resistant, cold resistant and chemical resistant properties.

Not only domestic but also in international industries fields, our products are already certified in quality, based on its fundamental quality assurance in each development process and strict production management for the production of the highest quality products (ISO 9001)

Especially, the POLYTOP SEAL?has been well recognised in both America and Europe, through strict testing and quality certifications by US ABS (American Bureau of Shipping), German DVGW, and North America PVRC-TTRL to secure competitive power early on.

Hereon, we will do our best to not only accumulate technology through research and development but also supply high quality products for the satisfaction of our customers.