BULK Adhesive Lined Heat Shrink Tubing 3:1 Ratio

BuyHeatShrink® Bulk 3:1 Adhesive Lined Heat Shrink Tubing

Looking for premium adhesive-lined heat shrink tubing in larger quantities? Our Bulk 3:1 Adhesive Lined Heat Shrink Tubing delivers the same professional-grade insulation and waterproof sealing performance you trust — now with bulk savings of 15% to 35% on select colors and sizes. Perfect for contractors, manufacturers, and electrical professionals who need consistent, high-volume supply at lower cost.

Features & Specifications

• 3:1 Shrink Ratio: Shrinks to one-third of its original diameter

• Adhesive Lined: Meltable inner wall ensures waterproof, protective sealing

• Longitudinal Shrinkage: Up to 15%

• Meets Requirements: AMS-DTL-23053/4 (formerly MIL-I-23053/4), Class 3

• Certifications: UL224 VW-1 Certified (jacket only; select colors) and CSA OFT approved

• Operating Temperatures: -55°C to +110°C

• Shrink Temperature: 90°C

• Maximum Continuous Use Temperature: 135°C

• Cross References: Sumitomo W3B2, Raychem ATUM, Alpha FIT-321, 3M EPS-300, Canusa CPA-100, LG GSHS-3635W

• Applications: Ideal for insulation, mechanical protection, color coding, wire bundling, strain relief, and sealing solder joints and connectors

• Compliance: RoHS and RoHS2 compliant

Bulk Order Savings

Enjoy exclusive volume discounts on eligible colors and sizes: (Color and size availability may vary — check dropdown for current options and bulk eligibility.)

• 10+ spools: Save 15%

• 25+ spools: Save 25%

• 100+ spools: Save up to 35%