Comprehensive Material Specifications

Transparent technical information for confident decision-making

Understanding Heat Shrink Materials

Polyolefin-based materials

Fluoropolymer materials

Cross-linked polymers

Elastomeric materials

Specialty compounds

Polyolefin Heat Shrink Material

Polyolefin Heat Shrink Material

Professional guide to selecting the right material for your application

Polyolefin

Most versatile and commonly used heat shrink material

Physical Properties
✓Density: 0.95 g/cm³
✓Tensile Strength: 10.3 MPa
✓Elongation at Break: 500%
✓Hardness: Shore D 50
✓Excellent flexibility rating
Thermal Properties
✓Shrink Temperature: 90-120°C
✓Operating Temperature: -55°C to 135°C
✓Thermal Conductivity: 0.3 W/mK
✓Flame Resistance: UL 224 VW-1
Chemical Resistance
✓Acids: Excellent resistance
✓Alkalis: Excellent resistance
✓Solvents: Good resistance
✓Oils & Fuels: Good resistance
Electrical Properties
✓Dielectric Strength: 19 kV/mm
✓Volume Resistivity: 1×10¹⁴ Ω·cm
✓Dielectric Constant: 2.3
✓Dissipation Factor: 0.0003
PVC Heat Shrink Material

PVC Heat Shrink Material

Professional guide to selecting the right material for your application

PVC

Cost-effective solution for general applications

Physical Properties
✓Density: 1.35 g/cm³
✓Tensile Strength: 13 MPa
✓Elongation at Break: 200%
✓Hardness: Shore A 85
✓Good flexibility rating
Thermal Properties
✓Shrink Temperature: 80-100°C
✓Operating Temperature: -20°C to 105°C
✓Thermal Conductivity: 0.16 W/mK
✓Flame Resistance: Self-extinguishing
Chemical Resistance
✓Acids: Good resistance
✓Alkalis: Good resistance
✓Solvents: Limited resistance
✓Oils & Fuels: Fair resistance
✓Environmental stress cracking: Good
Electrical Properties
✓Dielectric Strength: 20 kV/mm
✓Volume Resistivity: 1×10¹² Ω·cm
✓Dielectric Constant: 3.5
✓Dissipation Factor: 0.02
Fluoropolymer Heat Shrink Material

Fluoropolymer Heat Shrink Material

Professional guide to selecting the right material for your application

Fluoropolymer (FEP/PTFE)

Premium material for extreme conditions

Physical Properties
✓Density: 2.15 g/cm³
✓Tensile Strength: 28 MPa
✓Elongation at Break: 300%
✓Hardness: Shore D 55
Thermal Properties
✓Shrink Temperature: 175–250°C
✓Operating Temperature: -65°C to 200°C
✓Thermal Conductivity: 0.25 W/mK
Chemical Resistance
✓Acids: Excellent
✓Alkalis: Excellent
✓Solvents: Excellent
Electrical Properties
✓Dielectric Strength: 30 kV/mm
✓Volume Resistivity: 1×10¹⁶ Ω·cm
✓Dielectric Constant: 2.1

Understanding Shrink Ratios

Shrink ratio indicates how much the tubing will reduce in diameter when heated. For example, 3:1 means the tubing will shrink to 1/3 of its original diameter.

2:1 Standard Ratio

Shrinks to 50% of original diameter. Best for applications with known, consistent cable sizes.

Example: 10mm supplied → 5mm recovered

3:1 Versatile Ratio

Shrinks to 33% of original diameter. Most versatile option, accommodates size variations.

Example: 15mm supplied → 5mm recovered

4:1 Maximum Flexibility

Shrinks to 25% of original diameter. Maximum flexibility for irregular shapes and transitions.

Example: 40mm supplied → 10mm recovered

Industry Compliance & Certifications

International Standards

✔ UL (Underwriters Laboratories)

✔ CSA (Canadian Standards Association)

✔ MIL-DTL (Military Specifications)

✔ AMS (Aerospace Material Specifications)

Compliance Standards

✔ SAE (Society of Automotive Engineers)

✔ IEC (International Electrotechnical Commission)

✔ RoHS Compliant

✔ REACH Compliant

Quality Assurance

All products distributed by Seacoast Electronic Distributors meet or exceed international quality standards. We maintain comprehensive documentation and certification records for every material we supply.

Installation & Usage Guidelines

Surface Preparation

Clean and dry surfaces

Remove contaminants

Check for sharp edges

Sizing Selection

Measure cable diameter accurately

Account for connectors/terminations

Select appropriate shrink ratio

Post-Installation Inspection

Verify complete shrinkage

Check for air pockets

Ensure proper adhesion

Test environmental seal

Heat Application

Use appropriate heat source

Apply heat evenly

Avoid overheating

Start from center, work outward