1″ ADHESIVE LINED 3:1 SHRINK RATIO

Raychem ATUM 3:1 1″ Adhesive-Lined Heat Shrink — Full Stick Length (Approximately 48 Inches)

The ATUM-24/8-0-STK is Raychem ATUM 3:1 adhesive-lined cross-linked polyolefin heat shrink tubing in 1″ expanded inner diameter (approximately 24.0 mm mm expanded, recovering to approximately 8.0 mm mm), supplied as full stick length (approximately 48 inches). ATUM 3:1 is suited to large connector backshell entries and primary sub-harness sealing.

Raychem ATUM 3:1 — High Shrink Ratio Adhesive-Lined Construction

Raychem ATUM uses a cross-linked polyolefin outer wall with an inner hot-melt adhesive lining. The 3:1 shrink ratio provides excellent diameter accommodation for connector backshell entries and harness bundle sealing, bridging the gap between standard 2:1 products and the maximum 4:1 ATUM format. The adhesive inner lining melts and flows into gaps during shrinking, creating a watertight seal on uneven surfaces.

1″ Diameter — Application

The 1″ ATUM suits large connector backshell entries and primary sub-harness sealing.

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.