Highmica’s mica roll is an advanced, industrial-grade insulation material designed for demanding electrical and thermal applications. Each mica paper roll is made by bonding high-purity phlogopite (or synthetic) mica sheets with a high-temperature silicone resin, then winding them into a long cylindrical roll. This construction yields a high-strength, high-length insulator: mica rolls provide much longer continuous length and greater tensile strength than flat mica sheets.
Highmica offers both plain mica roll and reinforced variants (with glass-fiber and/or ceramic-fiber backing), ensuring suitability across the global phlogopite mica roll market.
As a world-leading supplier of mica insulation materials, Highmica’s ISO9001:2015-certified factory produces these synthetic ceramic mica rolls with strict quality control.
Key Features and Benefits
- Premium Composition: Made from high-quality phlogopite mica paper (or synthetic mica paper) with high-temperature silicone resin. Available in natural (brown) or artificial (white) mica variants.
- Excellent Insulation: Extremely high dielectric strength – e.g., breakdown voltage >2 kV at 0.2 mm (≈10 kV/mm) and >8 kV at 0.8 mm thickness. Provides superb electrical insulation and low loss for transformers, motors, generators, and high-voltage equipment.
- High Thermal Resistance: Standard grades resist approximately 800 °C (IEC Class F); speciality furnace rolls withstand up to 1200 °C. It is ideal for induction and arc furnace linings, industrial ovens, and other environments with extreme heat.
- Reinforced Structure: Select variants feature fibreglass cloth on one or both sides, or ceramic-fibre backings (e.g., R-5461-Combi grades). Reinforcements enhance tensile strength (≥160 N/15 mm) and durability while maintaining flexibility.
- Chemical and Environmental Stability: Inert to acids/alkalis with excellent ageing resistance. No toxic additives – emits no hazardous gases at high temperatures—non-flammable and self-extinguishing (typical mica behaviour).
- Flexible & Handling-Friendly: High flexibility allows wrapping and cutting into custom shapes without cracking. A smooth, dry surface finish (non-adhesive) facilitates easy processing.
- Custom Options: Offered in a full range of thicknesses (0.20–2.50 mm), standard 1000 mm width, and roll lengths of 20–100 m (or longer). Cores: 76 mm ID paper or plastic by default (other core IDs on request). Both mica paper and mica tube rolls are available, with mica tube counts per roll tailored to the specific application.
Structure
Mica rolls are based on phlogopite paper, reinforced with glass cloth and harmless ceramic fibres, ancustomizeded according to customer requirements.
Applications
Highmica mica rolls excel in a wide array of industrial insulation uses:
- High-Temperature Furnaces & Ovens: Lining and slip-planes in induction furnaces, arc furnaces, metallurgical furnaces, and ceramic kilns (resisting up to 1200 °C).
- Electrical Equipment: Winding insulation in transformers, motors, generators, and coils; phase barriers in power cables; fire-resistant cable jacketing. Mica roll is ideal for any application needing stable, fireproof electrical insulation.
- Seals and Gaskets: Slip-plane gaskets for pumps, valves, and ducting; sealing layers that prevent high-pressure fluids and gases from leaking. The flexible, reinforced mica prevents tears while adapting to flange shapes.
- Thermal Barriers: Insulating sheets between hot and cold surfaces; separation layers in heat exchangers and kiln furniture.
- Heating Elements: Wrap-around insulation for resistive heaters, coiled wire heaters, and hot plates.
- Roll-On Mica Flakes Coatings: Serves as a backing substrate for decorative or protective mica flake coatings (“roll on mica flakes”) in speciality applications.
There are also more mica insulators with different structures.
Technical Data
No. | Item | Unit | Value |
1 | Thickness | mm | 0.2-0.8 |
2 | Density | g/cm 3 | 1.8±0.2 |
3 | Length | m/roll | 25/50/100/1000 |
4 | Width | mm | 1000 |
5 | Dielectric Strength | KV/mm | >15 |
6 | Tensile Strength | N/15mm | ≥100 |
7 | Mica Content | % | >80 |
8 | Resin Content | % | 12±3 |
9 | Fire Grade | °C | >800 |
Why Choose Highmica
- Global Industry Leader: As a world-leading supplier of industrial mica insulation, Highmica dominates the phlogopite mica roll market with 8000+ tons annual output and 6000+ m² of plant. We serve OEMs and fabricators worldwide, with a particular focus on the US and UK.
- Factory Direct & Competitive Pricing: Highmica’s own ISO 9001-certified factory ensures stringent quality control and factory-direct pricing. Inquire about thethe price of mica paperrollse and volume discounts for your project.
- Advanced Manufacturing: State-of-the-art production lines and R&D capabilities enable the creation of custom formulations (e.g., synthetic ceramic mica rolls) and precise tolerances. We offer both plain mica rolls (unbacked) and multi-layer reinforcements tailored to meet application requirements.
- Certified Quality: All products comply with international standards (UL, CE, RoHS, etc.). Highmica maintains ISO, TUV, and industry certifications for peace of mind.
- Technical Support: Highmica’s experts provide specification guidance, fast prototyping, and on-time delivery. Whether you need mica roll, mica tube roll, or other types of mica insulation, we tailor our solutions to meet stringent industrial needs.
Contact Highmica today to learn more about our high-performance mica rolls (including synthetic ceramic mica rolcustomized and get a customised quote. Our team can advise on the best mica roll construction for your application and deliver precise quantities (including mica tubes per roll or roll-on mica flake solutions) at competitive pricing.