Silicone Coated Fiberglass Sleeves | Class H Insulation Sleeving – Manufacturer in India
Harnawa Insulations is among the top quality manufacturers of silicone coated fiberglass sleeves in India, offering high-end class H insulation sleeving suitable for all electrical and industrial purposes. Our sleeves are made using braiding of fiberglass and then coating it with a very high-quality silicone rubber that offers excellent properties of heat resistance, dielectric strength, and mechanical toughness.
If you require sleeving for protecting transformer leads, motor coil leads or components, Harnawa’s Silicone Coated Fiberglass Sleeves is what you are looking for.
What is Silicone Coated Fiberglass Sleeving?
Silicone Coated Fiberglass Sleeving is created by weaving non-alkali fiberglass yarn into a tubular sleeve, which is further coated with premium grade silicone rubber. The combination of the two materials provides the best of both worlds – the durability and heat-resistance of the fiberglass with the flexibility, electrical insulation and chemical resistance of silicone rubber.
This type of sleeving is used as an excellent Class ‘H’ insulation material in Class 180°C insulating system. The silicone coating is extremely durable and flexible, so it can follow all bends necessary for the wiring configuration without developing cracks or creases even if it stays bent permanently.
Key Features & Advantages
- H-Rated Class (180°C Insulation System) – Tailor-made for continuous service in electrical circuits with high temperature, following class H insulation guidelines
- No Splitting or Cracking – Easily conforms to any bending in complex wiring systems and stays flexible even after being permanently bent without cracking or splitting
- Tough yet Flexible Insulation – Takes up mechanical stress and hard installations without affecting electrical insulating capabilities
- High Dielectric Strength – Provides reliable insulation in electrical circuits that are fragile and operate with high voltage
- High Tensile Strength and Fatigue Resistance – Outstanding flex life makes it ideal for applications where movement is continuous
- Chemical Resistance – Resistance to organic acids, bases, and aliphatic hydrocarbons increases longevity in chemical environments
- Abrasion Resistance – Ideal for rugged applications requiring outstanding mechanical resistance
- Expandability Properties – Easy to install over connectors, terminations, and non-uniform cable profiles
Applications of Silicone Coated Fiberglass Sleeves
Silicone Coated Fiberglass Sleeves are widely used across industries requiring outstanding mechanical and electrical performance in high-temperature conditions, including:
Transformer Applications – Protection of transformer leads and winding insulation
Motor and Generators Construction – Protection of winding leads of motors and generators
Power Supply Cabling – Insulation of power supply cables for high-reliability electrical circuits
Appliances and Electrical Machines – Insulation of cables in appliances and machines
Automotive Industry – Protection of wire harnesses in high-temperature conditions of engines and machines
Lighting Devices – Insulation of cables in lighting devices
Medical Devices – Insulation of cables in medical devices
Why Choose Harnawa as Your Silicone Coated Fiberglass Sleeve Manufacturer in India
The consistency of silicone coating or braid is very important for the effectiveness of insulation used in high-temperature electrical equipment. The good reputation of Harnawa Insulations as a company that manufactures silicone-coated glass sleeves is because of the following factors:
- Manufacturing of Quality-Approved Products – All of our products are made by maintaining their consistency of coating, dielectric strength, and heating properties.
- Standard Conformity – We possess ISO 9001:2015 certification, RoHS, REACH, UL, and CE conformity certifications that can be applied for all of our products.
- Insulation Material for Class H – These insulations are made in accordance with specifications of Class 180° C insulation material.
- Products Available in Customized Size and Color – We manufacture products in customized sizes and colors.
- India-wide Distribution System – We distribute our products to transformers manufacturing firms, motor winding firms, electrical appliances manufacturing firms, and OEMs of the electrical industry from our head office situated in Mumbai and manufacturing unit located in Bhiwandi.
- Technical Assistance and Order in Bulk – Our team provides technical assistance as well as facilities to place orders in bulk.
If you’re looking for a reliable Class H silicone coated fiberglass sleeve manufacturer and supplier in India, Harnawa provides high-performance sleeving engineered for your most demanding electrical applications.
Explore Our Complete Range of Insulation Products
Silicone Coated Fiberglass Sleeves are part of Harnawa’s wider portfolio of electrical insulation and cabling solutions. Depending on your project requirements, you may also need:
Source your complete electrical insulation and sleeving requirements from a single trusted manufacturer and supplier in India.
Frequently Asked Questions
Q1: What is the insulation class of Silicone Coated Fiberglass Sleeving?
It is Class H Insulation sleeving that is used in Class 180°C insulating system.
Q2: How silicone coated sleeving differs from fiberglass sleeving?
Silicone coated sleeving has silicone rubber coating, giving greater flexibility, chemical resistance, tear strength and dielectric properties in contrast to fiberglass sleeving that is made of just braided fiberglass.
Q3: Is Silicone Coated Fiberglass Sleeving chemically resistant?
Yes, it is resistant to inorganic acids, alkalis and aliphatic hydrocarbons.
Q4: Is this sleeving cracking while being bent?
No, it can easily bend according to requirements of wiring without cracking and creasing even when being bent permanently.
Q5: In what applications Silicone Coated Fiberglass Sleeving can be used?
Common applications of this material are: transformer lead protection, motor coil leads, components insulation, power supply wiring and wiring of electric appliances.
