5/32″ ADHESIVE LINED 4:1 SHRINK RATIO

Raychem ATUM 4:1 5/32″ Adhesive-Lined Heat Shrink — Full Stick Length (Approximately 48 Inches)

The ATUM-4/1-0-STK is Raychem ATUM 4:1 adhesive-lined cross-linked polyolefin heat shrink tubing in 5/32″ expanded inner diameter (approximately 4.0 mm mm expanded, recovering to approximately 1.0 mm mm), supplied as full stick length (approximately 48 inches). ATUM 4:1 is suited to individual wires and small connector cable entries where the 4:1 ratio is needed for a large pre-shrink to post-shrink diameter change over a small finished diameter.

Raychem ATUM 4:1 — High Shrink Ratio Adhesive-Lined Construction

Raychem ATUM uses a cross-linked polyolefin outer wall with an inner hot-melt adhesive lining. The 4:1 shrink ratio provides the greatest diameter accommodation of any standard heat shrink product — a tube installed over a large connector shell shrinks down to seal firmly against the much smaller cable bundle exiting from the connector, a diameter change no standard 2:1 product can accommodate. The adhesive inner lining melts and flows into gaps during shrinking, creating a watertight seal on uneven surfaces.

5/32″ Diameter — Application

The 5/32″ ATUM suits individual wires and small connector cable entries where the 4:1 ratio is needed for a large pre-shrink to post-shrink diameter change over a small finished diameter.

Available from Arctic Performance Parts

Arctic Performance Parts stocks Raychem ATUM in 4:1 and 3:1 shrink ratios across all key diameters, in 6-inch piece packs and full stick lengths. Supporting professional motorsport harness builders across Scandinavia. Lead time 1–2 weeks for quantities beyond current stock.