ETW-803 is a flexible heat shrinkable tubing with a co-extruded hot melt adhesive inner wall. The excellent flowproperties of the adhesive ensure good environmental sealing of complex parts. As this tubing shrinks, molten adhesive flows and is forced into gaps and crevices. When the adhesive cools it forms a seal against moisture and other fluids whilst the outer wall provides mechanical protection. ETW-803 is well suited for environmental sealing of a variety of electronic, electrical and mechanical applications such as connections, joints etc. ETW-804 with a shrink ratio of 4 : 1 accommodateswide variances in diameter.