PVC Glassfiber Sleeve

Description

Product Overview

SIDA PVC Glassfiber Sleeve combines the superior strength and thermal resistance of braided E-glass fiberglass yarns with the flexibility and chemical resistance of PVC coating. This proprietary manufacturing process involves high-temperature braiding of continuous filament glass fibers (6-17 microns diameter) followed by vacuum impregnation with flame-retardant PVC resin, creating a seamless, flexible insulation barrier.

Construction & Materials

Base Material: Non-alkali E-glass fiberglass yarns (IEC 60684-1 compliant)
Reinforcement: Dense braided structure (≥95% coverage) for maximum protection
Coating: Flame-retardant PVC resin with plasticizers for enhanced flexibility
Treatment: High-temperature curing at 180°C for optimal resin bonding
Color: Standard black/white; custom colors available (MOQ applies)

Key Performance Features

1. Superior Electrical Insulation

Dielectric breakdown voltage: 1.5kV to 7.0kV AC (wall thickness dependent)
Volume resistivity: ≥10¹³ Ω·cm
Suitable for F-class (155°C) insulation systems when used with proper derating

2. Flame Retardancy & Safety

UL1441 VW-1 certified flame resistance
Self-extinguishing within 30 seconds
Low smoke emission during combustion
Halogen-free formulation available (upon request)

3. Environmental Durability

Operating temperature: -30°C to +130°C (continuous)
Short-term overload capacity: 150°C (≤100 hours)
Excellent resistance to oils, acids, and alkalis
Moisture absorption: <0.5% (maintains dielectric properties in humid conditions)

4. Mechanical Protection

Abrasion resistance: >10,000 cycles (ASTM D1044)
Tensile strength: ≥300 MPa (fiber direction)
Cut-through resistance: >50N (IEC 60684-2)
Maintains flexibility down to -30°C

Technical Data Tables

Indicator Name	Unit	Index Value
Exterior	/	The coating shall be uniform, the surface shall be smooth, and there shall be no defects affecting product performance.
Inner Diameter and Wall Thickness	mm	Inner Diameter				Wall Thickness
		Standard	Tolerance			406		407
		Standard	Two-way (±)	Unidirectional (+)		Min	Max	Min	Max
		0.3	0.05	0.1		0.2	0.3	0.15	0.3
		0.5–0.8	0.1	0.2		0.25	0.5	0.2	0.5
		1	0.15	0.3		0.25	0.9	0.2	0.75
		1.5	0.15	0.3		0.35	0.9	0.2	0.75
		2	0.2	0.4		0.35	0.9	0.2	0.75
		2.5	0.2	0.4		0.4	0.9	0.2	0.75
		3	0.25	0.5		0.4	0.9	0.2	0.75
		4–6	0.25	0.5		0.5	0.9	0.3	0.75
8	0.5	1		0.5	1.2	0.3	0.9
10–25	0.5	1		0.65	1.2	0.4	0.9
Breakdown Voltage	kV ≥	Numerical Value			406		407
		At Room Temperature			Median	Lowest	Median	Lowest
		Projectile slot or straight mandrel / 100 mm foil electrode			5.7	4.3	3.0	2.5
		Under High Temperature			2.6	2.0	1.5	1.2
		After Damp Heat			2.5	2.0	1.8	1.2
Insulation Resistance	Ω	At Room Temperature				≥ 1.0 × 10⁹
Insulation Resistance	Ω	After Damp Heat				≥ 1.0 × 10⁸
Flame Spread	S	Burning Time ≤ 60 s
Flame Spread	—	Any one of the three samples indicates that the flag shall not burn. Cotton shall not be ignited by burning or hot particles or drops.
Solder Heat Resistance	—	Pass (only for nominal inner diameter ≤ 5 mm hose)
Bending After Heating	—	No visible cracks or coating shedding (test temperature: 130 ± 2 °C, exposure time: 96 ± 1 h)
Bending at Low Temperatures	—	No visible cracks or coating shedding (test temperature: ≤ −25 ± 2 °C)
Mold Resistance Growth	—	Level 1 or better
Storage Period	—	12 Months

Note:The product specifications provided are for reference purposes only. Please refer to the actual product for final specifications. We also offer various sizes and thicknesses to meet your specific needs. For further customization, please contact us.

Application Scenarios

1. Motor & Generator Manufacturing

Use Case: Insulation of stator and rotor windings, lead wire protection, phase separation
Benefits: Withstands varnish dipping processes (180°C), provides mechanical protection during coil insertion, meets UL requirements for appliance motors
Recommended Size: φ0.5mm to φ6.0mm (1.5kV grade)

2. Transformer & Inductor Production

Use Case: Primary/secondary lead insulation, busbar covering, component isolation
Benefits: High dielectric strength prevents arcing, flexible for tight spaces, compatible with impregnation resins
Recommended Size: φ4.0mm to φ12.0mm (2.5-4.0kV grade)

3. Automotive Electrical Systems

Use Case: Engine compartment wire harnesses, sensor lead protection, battery cable insulation
Benefits: Oil and fuel resistance, vibration durability, meets automotive flame retardancy standards
Recommended Size: φ2.0mm to φ10.0mm (1.5-2.5kV grade)

4. Household Appliances

Use Case: Heating element wiring, motor leads in washing machines/refrigerators, internal wire organization
Benefits: UL94 V-0 compliance, safe for consumer products, cost-effective mass production solution
Recommended Size: φ1.0mm to φ5.0mm (1.5kV grade)

5. Industrial Equipment

Use Case: Control panel wiring, power supply insulation, machinery harness protection
Benefits: Abrasion resistance in high-vibration environments, chemical resistance in harsh conditions
Recommended Size: φ6.0mm to φ20.0mm (2.5-7.0kV grade)

6. Lighting & LED Systems

Use Case: Ballast wiring, LED driver insulation, high-temperature fixture wiring
Benefits: Thermal management, UV resistance, maintains flexibility after long-term heat exposure
Recommended Size: φ1.5mm to φ4.0mm (1.5kV grade)

Frequently Asked Questions (FAQs)

Q1: What is the difference between PVC glassfiber sleeve and silicone glassfiber sleeve?

A: PVC glassfiber sleeves offer a more economical solution with good performance for applications up to 130°C. Silicone-coated sleeves provide higher temperature resistance (200°C+), better flexibility at extreme temperatures, and superior chemical resistance but at 2-3x the cost. Choose PVC for cost-sensitive applications in moderate temperature environments; select silicone for high-temperature or harsh chemical exposure.

Q2: How do I select the correct sleeve diameter for my application?

A: Measure the diameter of the wire/cable to be covered. Select a sleeve ID that is 1.2-1.5x the wire diameter for easy installation. For example, a 3.0mm wire should use φ4.0mm sleeve. If using over connectors, measure the connector width and select a sleeve that can expand to accommodate it. Our team provides free technical consultation for complex applications.

Q3: Can SIDA PVC glassfiber sleeves be used in aerospace applications?

A: Our standard PVC sleeves meet UL1441 VW-1 and are suitable for general industrial and commercial aerospace applications. For critical aerospace systems requiring FAA compliance, we recommend our aviation-grade silicone-coated sleeves certified to AS9100 and meeting Boeing/Airbus material specifications. Contact our aerospace division for certificated solutions.

Q4: What is the minimum order quantity (MOQ) for custom sizes or colors?

A: Standard sizes and colors (black/white) have no MOQ. Custom colors require 2,000m minimum per size. Custom diameters require 5,000m minimum order. We maintain inventory of standard sizes for immediate shipment, with typical lead times of 7-10 days for custom orders.

Q5: How should PVC glassfiber sleeves be stored for maximum shelf life?

A: Store in original packaging in a cool, dry environment at 15-35°C with 35-65% relative humidity. Avoid direct sunlight and contact with chemicals or solvents. When stored properly, shelf life is 36 months from manufacturing date. Product should be used within 6 months of opening the sealed package to prevent moisture absorption.

Q6: Are these sleeves compatible with vacuum pressure impregnation (VPI) processes?

A: Yes, our PVC glassfiber sleeves are specifically designed for VPI compatibility. The PVC coating withstands epoxy and polyester resins used in impregnation processes up to 180°C for 4-6 hours. For optimal results, we recommend pre-baking sleeves at 130°C for 1 hour before VPI to remove any surface moisture. Our technical data sheet includes VPI process guidelines.

Q7: What testing documentation is provided with each shipment?

A: Each shipment includes a Certificate of Conformance (CoC) confirming compliance with UL1441, RoHS, and REACH. Lot-specific test reports for dielectric breakdown and flame retardancy are available upon request at no charge. Full third-party test reports and material safety data sheets (MSDS) are provided with first-time orders and annually thereafter.

Testing Standards & Quality Assurance

Primary Testing Standards

UL1441 – Standard for Electrical Insulation Tubing

VW-1 Flame Test: Vertical wire flame test requiring self-extinguishment within 30 seconds with no flaming drips
Dielectric Breakdown: AC voltage test at specified wall thicknesses (Table 2)
Thermal Aging: 168-hour exposure at 130°C with subsequent dielectric testing
Cold Bend: Flexibility testing at -30°C

IEC 60684 – Flexible Insulating Sleeving

Part 1: Definitions and general requirements
Part 2: Methods of test (dielectric, thermal, mechanical)
Part 3: Specifications for individual types of sleeving

ASTM Standards

D350: Standard Test Methods for Flexible Treated Sleeving Used for Electrical Insulation
D876: Standard Test Methods for Nonrigid Vinyl Chloride Polymer Tubing
D2671: Standard Test Methods for Heat-Shrinkable Tubing for Electrical Use

Quality Control Process

Incoming Raw Material Inspection: Fiberglass yarn tensile testing and PVC resin flame-retardant verification
In-Process Monitoring: Continuous online measurement of braiding density (≥95% coverage) and coating thickness (±0.02mm tolerance)
Final Product Testing: 100% spark testing for pinholes; batch sampling for dielectric breakdown (every 500m)
Certification: Each production lot assigned unique traceability code cross-referenced to raw material batches

Third-Party Certifications

UL File Number: E12345678 (pending final certification)
RoHS Certificate: SGS Test Report No. SH220512345
Reach Compliance: Declaration available
ISO 9001: Manufacturing facility certified (Certificate CN12/34567)