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When exposed to heat 194°F/90°C the tubing shrinks 50% in diameter, with 5% longitudinal contraction. Controlled shrinkage to exact requirement takes place. This series is designed for maximum mechanical strength at stress or points of connection. It is strong, abrasion resistant and is supplied in expanded sizes. It insulates, jackets, splices, encapsulates, weather-proofs components, connectors, cables and irregular shaped objects.