Acrylic-Coated Fiberglass Sleeving
Braid-and-coat sleeving for flexible electrical insulation. Acrylic-coated fiberglass sleeving is the standard flexible electrical sleeve: braided glass with an acrylic binder that stays flexible and dielectric. We supply it in the ID and temperature class for your harness or component. Acrylic is the general flexible standard; silicone runs hotter. We pick from temperature. Higher-temperature fle
Braid-and-coat sleeving for flexible electrical insulation. Acrylic-coated fiberglass sleeving is the standard flexible electrical sleeve: braided glass with an acrylic binder that stays flexible and dielectric. We supply it in the ID and temperature class for your harness or component. Acrylic is the general flexible standard; silicone runs hotter. We pick from temperature. Higher-temperature fle
Technical specifications
| Material | Fiberglass + acrylic |
| Flex | Flexible braid |
| Use | Electrical sleeving |
| Temp | Moderate class |
Information required for quotation
| Base tube | Approved material grade, ID, OD, wall and conditioning as per drawing |
| Datums | Drawing datum scheme and measurement reference |
| Key dimensions | Feature positions, depths, pitch and diameters reviewed before quotation |
| Thread / profile | Standard or custom profile, class, depth, engagement and gage method |
| Other features | Holes, slots, steps, chamfers, cuts and marking |
| Acceptance | Tolerances, sampling, gages, FAI and inspection report |
| Order | Prototype and production quantity, packaging and delivery target |
Applications by industry
- Motor and generator lead wire protection sleeving
- Transformer lead and coil protection sleeves
- Appliance and HVAC internal wire slewing
- Automotive wiring harness abrasion protection
- Relay and reactor coil insulation sleeving
- Flexible, cut-to-length fleece grade for harness shops
Why acrylic-coated fiberglass for this application
Acrylic over fiberglass braid gives a flexible, cut-and-hold insulating sleeve for motor/dry-type apparatus leads, at a lower temperature and cost tier than silicone where the duty allows.
Acrylic softens below silicone service; confirm max continuous temp vs your winding spot. Not for wet high-voltage tracking service.
Standards: IEC 60684-3 (sleeving), UL 1441, RoHS.
Feature and remaining-wall review
Cut-to-length; heat-sealed or taped ends. Not typically machined. Review feature depth, edge distance and remaining wall against critical geometries. Capability is confirmed on your drawing, not from a blanket tolerance.
Inspection and traceability
We state the control plan with you. Batch traceability links raw material lot to finished part.
- First-article inspection (FAI) per your plan
- In-process dimensional checks at every station
- Batch certificate of conformance (COA) supplied on request
- Lot traceability to incoming material certificate
- Dielectric strength and insulation resistance testing available on request
Related components
Silicone-Coated Fiberglass Sleeving
Related insulation component from the WELLELE catalog.
Silicone Resin Fiberglass Sleeve
Related insulation component from the WELLELE catalog.
Mylar Shrink Tubing
Related insulation component from the WELLELE catalog.
Common questions
Is silicone UV resistant?
The fiberglass substrate is UV resistant; the silicone coating adds moisture and chemical resistance.
Can it be cut to length?
Yes — standard cut-to-length with heat-sealed or taped ends as required.
What standards apply?
ASTM D5611 (silicone sleeving), IEC 60228, UL 94 V-0.
RoHS and REACH compliance?
Yes. All standard grades comply with RoHS 2011/65/EU and REACH 1907/2006.
Acrylic or silicone coated sleeve?
Yes. All standard grades comply with RoHS 2011/65/EU and REACH 1907/2006.
Engineering Guides & Selection Notes
Related technical articles that help specify this product.
Get pricing for Acrylic-Coated Fiberglass Sleeving
Attach the drawing with annual volume. We check the material against your duty and tolerance, verify ID / OD / wall / features, and respond with manufacturability notes and pricing.