PU Coated Fiberglass Sleeve | Class F Polyurethane Insulation Sleeving – Manufacturer in India
Harnawa Insulations is one of the most reputed PU coated fiberglass sleeves manufacturers in India, offering class F PU coated insulation sleeves that provide reliable protection of wires in challenging electrical and industrial environments. Our insulated sleeves have been produced by coating heat treated braided fiberglass with thermosetting polyurethane varnish, ensuring great insulating, chemical and lasting properties.
No matter whether you want to insulate your electrical machines, apparatuses, devices or wiring assemblies in general, Harnawa’s PU Coated Fiberglass Sleeve will be a reliable choice for you.
What is PU Coated Fiberglass Sleeve?
PU Coated Fiberglass Sleeve (or Polyurethane Fiberglass Sleeving) is produced through the coating of braided and heat treated fiberglass sleeve with thermosetting polyurethane varnish, which has Class F (155°C) rating. This means that the polyurethane film is cross-linked, and hence the coating does not flow or deteriorate even when subjected to high temperatures.
The sleeves are acid resistant as well as resistant to most of the organic solvents. They are suitable with a wide variety of wire enamels, among which are polyester, polyamide, polyimide, and polyvinyl formal wire enamels. The sleeves are available in various colours as well as in natural colour of cured varnish.
Key Features & Advantages
- Class F (155°C) Rated – Designed for dependable continuous use in class F insulation systems
- Cross Linked Polyurethane Insulation – The polyurethane film does not melt when subjected to heat and is dimensionally stable and provides excellent insulation properties over time
- Good Electrical Properties – Provides good electrical insulation for wiring and windings applications
- Soft, Durable and Highly Flexible – Easy to apply and conforms easily to bends and connectors
- Excellent Chemical Resistance – Has resistance to acid and most organic solvents thus increasing its life span in industrial conditions
- Compatibility with Various Enamels – Compatible with polyester, polyamide, polyimide and polyvinyl formal wire enamel coatings
- Flame Retardant Characteristics – Provides an additional degree of fire safety in wiring insulation applications
- Multiple Color Availability – Available in several colors as well as the natural resin color
Applications of PU Coated Fiberglass Sleeve
PU Coated Fiberglass Sleeve is widely used for wiring insulation and mechanical protection across a range of electrical equipment, including:
Electrical Machinery – general insulation of wiring and mechanical protection of industrial electrical machines
Electric Appliances – insulation tubing for wiring in domestic and industrial electric appliances
Electrical Instruments – insulating tubing for wiring in measurement and control instruments
Electrical Equipment – insulation for wiring in different kinds of electrical equipment
Wireless Equipment – protection of wires and cables in wireless equipment
Winding of Motors and Transformers – suitable for conventional enamels used in the winding of motors and transformers
Why Choose Harnawa as Your PU Coated Fiberglass Sleeve Manufacturer in India
A consistent and quality PU coating on a fiberglass sleeve is vital because the performance of the PU coated sleeve depends on the quality of coating and cross linking done to it. Harnawa Insulations has earned the reputation as a dependable supplier of PU coated fiberglass sleeves in India based on:
- Quality Assured Manufacturing – Each batch is manufactured and tested for coating uniformity, dielectric strength, and Class F insulation.
- Certification Compliance – Our manufacturing unit holds ISO 9001:2015 certificate, as well as complies with RoHS, REACH, UL and CE guidelines for all our products.
- Class F Insulation Know-how – Designed and manufactured exclusively to suit Class 155°C insulation system application requirements.
- Different Sizes & Colours – Available in various sizes and colours to meet different requirements of electrical equipment.
- Pan-India Distribution – Distributing to electrical machinery, appliance makers, instrument makers and industrial OEMs from our Mumbai headquarters and Bhiwandi factory.
- Technical Support & Bulk Orders – We provide technical expertise, assistance with bulk orders and competitive prices for procurement teams in India.
If you’re looking for a reliable Class F PU coated fiberglass sleeve manufacturer and supplier in India, Harnawa provides consistent, high-performance sleeving for your wiring insulation needs.
Frequently Asked Questions
Q1: What insulation class does the PU Coated Fiberglass Sleeve come under?
The PU Coated Fiberglass Sleeve comes under Class F (155°C).
Q2: How is PU coated sleeving different from PVC coated sleeving and silicone coated sleeving?
The PU coated sleeving comes under Class F (155°C), with good chemical resistance and enamel compatibility, the PVC coated sleeving is a universal and economical choice while the Silicone coated sleeving comes under Class H (180°C).
Q3: Is PU Coated Fiberglass Sleeve chemically resistant?
Yes, it is resistant to acids and most organic solvents.
Q4: Which wire enamels is PU Coated Fiberglass Sleeve compatible with?
PU Coated Fiberglass Sleeve is compatible with Polyester, Polyamide, Polyimide and Polyvinyl Formal wire enamels.
Q5: Does Harnawa manufacture and supply PU Coated Fiberglass Sleeve throughout India?
Yes. Being a reputed PU Coated Fiberglass Sleeve manufacturer and supplier in India, Harnawa Insulations manufactures and supplies electrical machinery manufacturers, appliance makers and industrial OEMs across India through our plants in Mumbai and Bhiwandi.
