Heat Shrink Tubing Selection Guide
Heat Shrink Tubing is available in several styles and materials, please consult the chart below to determine which type is best suited to you specific needs.
| SINGLE-WALL POLYOLEFIN TUBING | ||||
|---|---|---|---|---|
| Part Number | NP-221 | NP-221VW | NP-203 | NP-295 |
| Material / Typical Application | Flexible Polyolefin – General Purpose flame retardant insulation for UL, CSA and AMS-DTL-23053/5C applications; cable and component covering. Class 1 = opaque colors; Class 2 = clear. | Highly Flame-Retardant, Flexible Polyolefin – Insulation applications, flame-retardant applications requiring UL VW-1 and CSA OFT, fire resistant wiring. | Very Flexible Polyolefin – Shrink-fit jacketing and insulation of flexible wire bundles and temperature-sensitive components. | Semi-Rigid Polyolefin – Protective covering of fragile components; strain relief, wire markers. Class 1 = opaque colors; Class 2 = clear. |
| Operating Temp. Range | -55°C to +135°C |
-55°C to +135°C |
-55°C to +135°C |
-55°C to +135°C |
| Shrink Temp. (min) | 212°F / 100°C | 212°F / 100°C | 212°F / 100°C | 275°F / 135°C |
| Shrink Ratio | 2:1 | 2:1 | 3:1 | 2:1 |
| Standard Sizes Expanded Dia. | 3/64″ to 4″ | 3/64″ to 4″ | 1/16″ to 1-1/2″ | 3/64″ to 1/2″ |
| Dielectric Strength (V-mil) | 900 | 900 | 700 | 800 |
| Volume Resistivity (ohm-cm) | 1015 | 1015 | 1015 | 1015 |
| Tensile Strength (PSI) | 2400 | 2400 | 2600 | 2600 |
| Ultimate Elongation (%) | 400 | 400 | 400 | 400 |
| (± %)Longitudinal Change | 5 | +1, -10 | 5 | 5 |
| Specific Gravity | 1.3 | 1.5 | 1.29 | 1.25 |
| Flammability | Self-Extinguish meets UL 224 All-Tubing Flame Test (except clear) | Self-Extinguish meets UL 224 VW-1 Test | Self-Extinguish | Self-Extinguish (except clear) |
| Corrosive Effect | Non-Corrosive | Non-Corrosive | Non-Corrosive | Non-Corrosive |
| Abrasion Resistance | Good | Good | Good | Good |
| Flexibility | 3 | 3 | 3 | 7 |
| Fuel & Oil Resistance | Good | Good | Good | Good |
| Solvent Resistance | Excellent | Excellent | Good | Excellent |
| Resistance to Acids and Alkalis | Excellent | Excellent | Excellent | Excellent |
| Applicable Specifications | AMS-DTL-23053/5C, Class 1, 2; AMS-3636 & 3637; UL File E-39100; CSA LR38227; ABS | AMS-DTL-23053/5C, Class 3; UL File E-39100, VW-1; CSA LR38227, OFT | AMS-DTL-23053/5C, Class 1; UL File E-48398; CSA LR38227 | MIL-DTL-23053/6, Class 1, 2; AMS-3638, AMS-3639; UL File E-39100 |
| ADHESIVE-LINED, POLYOLEFIN TUBING | ||||
|---|---|---|---|---|
| Part Number | NP-300 | NP-750 | NP-321 | NP-421 |
| Material / Typical Application | Multiple Wall Polyolefin – Insulation, strain relief and sealing of electrical connections, wire splices and components. | Environmental Protection Sleeve – Insulation, strain relief and environmental protection of electrical wire bundles and components. | Environmental Protection Sleeve – Insulation, strain relief and environmental protection for automotive and marine wire bundles and splices. | Environmental Protection Sleeve – Insulation, strain relief and environmental protection for sealing voids in multiple wire bundles for automotive and marine applications. |
| Operating Temp. Range | -55°C to +110°C |
-55°C to +110°C |
-55°C to +110°C |
-55°C to +110°C |
| Shrink Temp. (min) | 275°F / 135°C | 250°F / 121°C | 250°F / 121°C | 250°F / 121°C |
| Shrink Ratio | 2.5:1 | 2:1 | 3:1 | 4:1 |
| Standard Sizes Expanded Dia. | 1/8″ to 1″ | 1/8″ to 2″ | 1/8″ to 1-1/2″ | .300″ to .700″ |
| Dielectric Strength (V-mil) | 900 | 800 | 700 | 700 |
| Volume Resistivity (ohm-cm) | 1015 | 1014 | 1014 | 1014 |
| Tensile Strength (PSI) | 2200 | 2100 | 2100 | 1900 |
| Ultimate Elongation (%) | 400 | 450 | 450 | 400 |
| (± %)Longitudinal Change | +1, -10 | +1, -5 | +1, -15 | +1, -10 |
| Specific Gravity | 1 | 1.3 | 1.3 | 1.25 |
| Flammability | Non-Flame Retardant | Self-Extinguish meets UL 224 All-Tubing Flame Test (jacket) | Self-Extinguish meets UL 224 All-Tubing Flame Test (jacket) | Self-Extinguish |
| Corrosive Effect | Non-Corrosive | Non-Corrosive | Non-Corrosive | Non-Corrosive |
| Abrasion Resistance | Good | Good | Good | Good |
| Flexibility | 7 | 3 | 3 | 7 |
| Fuel & Oil Resistance | Good | Good | Good | Good |
| Solvent Resistance | Good | Good | Good | Good |
| Resistance to Acids and Alkalis | Excellent | Excellent | Excellent | Excellent |
| Applicable Specifications | AMS-DTL-23053/4D, Class 1; AMS-3634; UL File E-157227 | AMS-DTL-23053/4D, Class 2; UL File E-39100 | AMS-DTL-23053/4D, Class 3; UL File E-157227; ABS | UL File E-157227 |
| SPECIAL PURPOSE TUBING | |||||
|---|---|---|---|---|---|
| Part Number | NP-350 | NP-600 | NP-650 | PTFE-HS | NP-105 |
| Material / Typical Application | Polyvinylidene Fluoride – Heat-resistant transparent insulation and marking for electronic and appliance applications. | Modified Neoprene® – Insulation and abrasion resistant covering of wiring and cable harnesses. Oil resistant coverings. | Fluoroelastomer – Synthetic fuel and hydraulic oil resistant applications, high-temperature coverings. | Polytetrafluoro-ethylene Tubing – standard wall, flame retardant heat shrink tubing designed for high heat-resistance applications. | PVC Heat Shrinkable Tubing – insulation and strain relief, dielectric and mechanical protection applications. |
| Operating Temp. Range | -55°C to +175°C |
-70°C to +121°C |
-55°C to +175°C |
-75°C to +260°C |
-20°C to +105°C |
| Shrink Temp. (min) | 347°F / 175°C | 275°F / 135°C | 347°F / 175°C | 654°F ± 25°F / 346°C ± 5°C to recover |
212°F / 100°C |
| Shrink Ratio | 2:1 | 2:1 | 2:1 | 2:1 | 2:1 |
| Standard Sizes Expanded Dia. | 3/64″ to 2″ | 1/8″ to 2″ | 1/8″ to 3″ | 1/8″ to 1″ | 3/64″ to 4″ |
| Dielectric Strength (V-mil) | 900 | 800 | 500 | 500 | 1083 vpm |
| Volume Resistivity (ohm-cm) | 1014 | 1012 | 1012 | 1018 | 1012 |
| Tensile Strength (PSI) | 5500 | 2100 | 2400 | 4500 | 3000 |
| Ultimate Elongation (%) | 350 | 500 | 450 | 450 | 300 |
| (± %) Longitudinal Change | +1, -10 | +1, -10 | +1, -10 | +1, -10 | -15 |
| Specific Gravity | 1.7 | 1.3 | 1.7 | 2.13 – 2.0 | 1.3 |
| Flammability | Self-Extinguish Meets UL 224 VW-1 Test | Self-Extinguish | Self-Extinguish | UL 94 VO | Meets UL 224 VW-1 Test |
| Corrosive Effect | Non-Corrosive | Non-Corrosive | Non-Corrosive | Non-Corrosive | Non-Corrosive |
| Abrasion Resistance | Excellent | Excellent | Excellent | Excellent | Excellent |
| Flexibility | 10 | 1 | 4 | 10 | 3 |
| Fuel & Oil Resistance | Excellent | Excellent | Excellent | Excellent | Excellent |
| Solvent Resistance | Excellent | Good | Excellent | Excellent | Good |
| Resistance to Acids and Alkalis | Excellent | Excellent | Excellent | Excellent | Good |
| Applicable Specifications | AMS-DTL-23053/8C, AMS-DTL-23053/18, Class 1; AMS-3632; UL File E-39100, VW-1,E69751; CSA LR38227 OFT | MIL-R-46846; Type 1, Class 1; AMS-DTL-23053/1, Class 1, 2; AMS-3623 | MIL-R-46846, Type III, Class 1; AMS-DTL-23053/13 | SAE-AMS-DTL-23053/12 Class 2. RoHS compliant | Lead free and RoHS compliant. CSA OFT rated for 600 V. ASTM D 3150. SAE-AMS-DTL-23053/2 Class 2; RoHS compliant |
| HEAVY DUTY TUBING | ||
|---|---|---|
| Part Number | NP-700MD | NP-700HD |
| Material / Typical Application | Medium-Duty – Excellent abrasion, corrosion and environmental protection. Flame retardant. | Heavy-Duty – Fabricated from specially formulated crosslinked polyolefin, assuring long-term environmental protection. Highly chemical, abrasion and split resistant. |
| Operating Temp. Range | -55°C to +110°C |
-55°C to +110°C |
| Shrink Temp. (min) | 250°F / 121°C | 250°F / 121°C |
| Shrink Ratio | 3:1 | 3:1 |
| Standard Sizes Expanded Dia. | 0.400″ to 4.30″ | 0.300″ to 7.00″ |
| Dielectric Strength (V-mil) | 500 | 500 |
| Volume Resistivity (ohm-cm) | 1014 | 1014 |
| Tensile Strength (PSI) | 2400 | 2400 |
| Ultimate Elongation (%) | 450 | 475 |
| (± %)Longitudinal Change | +1, -10 | +1, -10 |
| Specific Gravity | 1.28 | 1.28 |
| Flammability | Self-Extinguish | Self-Extinguish |
| Corrosive Effect | Non-Corrosive | Non-Corrosive |
| Abrasion Resistance | Good | Good |
| Flexibility | 8 | 9 |
| Fuel & Oil Resistance | Good | Good |
| Solvent Resistance | Good | Good |
| Resistance to Acids and Alkalis | Excellent | Excellent |
| Applicable Specifications | AMS-DTL-23053/15, Class 2; ABS | AMS-DTL-23053/15, Class 1; ABS |