(주)동아스트

ETFE Business

It is a membrane material that can express a transparent and creative appearance on the roof and walls with a low carbon product that can be recycled 100%. Dongast Co., Ltd. is capable of collective work from ETFE membrane structure to engineering, production and construction all-in-one.

What is ETFE?

It is a membrane raw material, which is thermoplastic, fluorine-containing macromolecular material, consisting of 20% Ethylene and 75%Teflon.

Ethylene Tetra Fluoride Ethylene

Macromolecular material

Thermoplastic, Fluorine-containing, macromolecular material
Lowest transmittance

Light transmission rate of ETFE from 40% up to 97%
Copolymers

Copolymers of Ethylene-Teflon
(Composed of 25% ethylene and 75% Teflon)
Extruded ultralight

Regular thickness up to 50um and 300um, Ultra light
Exchange of TFE

Made with, Ethylene tetra-fluoroethylene copolymer resin.

Special Features of ETFE

Dynamic Features

·Ductility/malleability and Tensile Force : Excellent, Maximum 400%
·Tensile Strength : 400Mpa
·Tearing Strength : 40N/mm

Fire Proof

·Flame retardant:German standard of DIN(level B1) Even though it is only 0.2mm in thickness, fire will not outburst.

Chemical Stability

·It does not melted when exposed to Sulfuric Acid.
·It is a proper material for permanent roofing structures as its
expected life span is a minimum of 25~35 years
under any kind of environmental conditions.