Flexible Mica Sheets are a popular insulation material. They have multiple layers of phlogopite/muscovite mica paper with high-temperature silicone resin. They are bendable and have high tensile strength, making them ideal for punching insulation gaskets or mats for appliances and furnaces.
Mica is a mineral widely used in many industrial applications because of its unique combination of physical and chemical properties. It is a good electrical insulator and has a high thermal resistance, making it an ideal material for electrical and thermal insulation. Mica is also very flexible and can easily be cut and shaped into various forms. In addition, it is resistant to chemical attack and withstands high temperatures, making it a durable, long-lasting material.
HighMica is a professional manufacturer and supplier of industrial mica insulation materials. Flexible mica sheets can be processed into shapes of different specifications. If you need a quotation, please click the link below.
Flexible mica sheets Properties
- Flexible and high-tensile strength; most popular thickness: 0.5~1.0mm; will be punched into heating protection mats, washers, and insulation sealing parts.
- Excellent thermal resistance, muscovite mica resists 500~700℃, Phlogopite mica resists 750~850℃, Synthetic/Muscovite Calcined mica resists more than 1000℃, and most popular phlogopite mica sheets are used in the furnace.
- Excellent electrical insulation; typically, the breakdown voltage exceeds 16 kV/mm.
- Different flexible can be customised for other uses.
- Customised mica sheet inserts with glass-fibre cloth and stainless-steel woven fabric are available upon special request.
- Eco-friendly and non-asbestos.
Flexible mica sheet applications
- Electrical insulation: Flexible mica sheets are used in various electrical and electronic equipment, including motors, generators, transformers, and appliances.
- Flexible mica sheets are bendable and can be punched according to CAD design. Flexible mica sheet mats are extremely suitable for equipment as insulation mats, such as microwave ovens and toaster ovens.
- Flexible mica sheets can be cut into strips and rolled into the sealing components. Their perfect expansion performance makes a sealed joint that can keep performing well even at high temperatures, such as an automobile exhaust pipe.
- Flexible phlogopite mica sheets resist high temperatures of more than 800℃, which makes them very popular and used in induction, arc, and high-frequency furnaces. The mica sheets can also be combined with other materials, such as ceramic, to achieve multi-functionality and use as customers demand.
- Thermal barriers: Mica is used to construct thermal barriers, which prevent the transfer of heat from one surface to another.
- Industrial seals: Mica is often used as a sealing material in various industrial applications, including pumps, valves, and compressors.
Technical data of flexible mica sheet
Type
HP5M-1
HP5P-1
HP5S-1
HP5-S
HP5-R
Test Method
Normal Thickness (mm)
0.1~6
0.1~6
0.1~6
0.1~6
0.1~0.5
IEC60371-3-3
Density g/cm3
1.7~2.1
1.7~2.1
1.7~2.1
1.7~2.1
1.7~2.1
IEC60371-3-2
Mica content %
≥90
≥90
≥90
≥70
≥90
IEC60371-3-2
Resin content %
≤10
≤10
≤10
≤12
≤12
IEC60371-3-3
Heat resistant ℃
Continual
500
700
1000
700~900
700~900
–
Intermittent
700
900
1100
900~1100
900~1100
–
Heat Loss
at 500℃ %
≤3
≤3
≤3
≤3
≤3
IEC60371-3-2
Dielectrics strength KV/mm
≥20
≥19
≥20
≥15
≥15
IEC60243 at 23℃
Type | HP5M-1 | HP5P-1 | HP5S-1 | HP5-S | HP5-R | Test Method | |
Normal Thickness (mm) | 0.1~6 | 0.1~6 | 0.1~6 | 0.1~6 | 0.1~0.5 | IEC60371-3-3 | |
Density g/cm3 | 1.7~2.1 | 1.7~2.1 | 1.7~2.1 | 1.7~2.1 | 1.7~2.1 | IEC60371-3-2 | |
Mica content % | ≥90 | ≥90 | ≥90 | ≥70 | ≥90 | IEC60371-3-2 | |
Resin content % | ≤10 | ≤10 | ≤10 | ≤12 | ≤12 | IEC60371-3-3 | |
Heat resistant ℃ | Continual | 500 | 700 | 1000 | 700~900 | 700~900 | – |
Intermittent | 700 | 900 | 1100 | 900~1100 | 900~1100 | – | |
Heat Loss | at 500℃ % | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | IEC60371-3-2 |
Dielectrics strength KV/mm | ≥20 | ≥19 | ≥20 | ≥15 | ≥15 | IEC60243 at 23℃ | |
Flexible mica sheets are made from thin layers of mica that are bonded together with a flexible adhesive. They are known for their high electrical and thermal insulation properties, as well as their flexibility and durability.
How to make mica sheet?
The process steps for making flexible and rigid mica sheets are similar; different silicon resins are used, and the heat-pressing temperature and time differ. The basic steps are as follows:
- Quality muscovite mica paper, phlogopite mica paper, or synthetic mica paper with high-temperature silicon resin.
- Heating presses the mica paper to the mica sheets.
- Cutting the mica sheets to size: 1000*600mm, 1000*1200mm, 1000*2400mm
- Pack each 50kg mica sheet with PE film and a carton box, then fix each 1-ton mica sheet with wooden pallets.
More videos to describe how to process mica sheets.
Laminated mica sheet specifications
Name
Type
Thichness
Standard size
Description
Rigid Mica Sheet
HP5(HP5M, HP5P, HP5S)
0.1~3mm
1000*2400mm, 1000*1200mm, 1000*600mm
Excellent flexural strength to punch to mica part for high strength framework of heating, electric heating appliance & equipment
Flexible Mica Sheet
HP5(HP5M-1, HP5P-1, HP5S-1)
0.1-6mm
1000*2400mm, 1000*1200mm, 1000*600mm
Easy to winding or wrapping, for heating elements, furnace protection
Over thick Mica Sheet
HP5-G (HP5M-G, HP5P-G)
4-100mm
1000*2400mm, 1000*1200mm, 1000*600mm
High density, mechanical strength, suitable for sawing, drilling, grinding, and even by waterjet cutting method
Low Smoke Mica Sheet
HP5-L (HP5M-L, HP5P-L)
0.1-3mm
1000*2400mm, 1000*1200mm, 1000*600mm
Low smoke and blister-free for FDA heating elements resist high-temperature, like food toasters, microwave oven
Mica Sheet in Roll
HP5-R
0.1-0.5mm
1000mm*100m
Special designed Flexible Mica Sheet in Roll. That is very convenient for furnace use and industrial demand.
Special Mica Sheet
HP5-S (HP5M-S, HP5P-S)
0.5-3mm
1000*2400mm, 1000*1200mm, 1000*600mm
Insert strength material (steel sheet, woven), get extremely flexible toughness, mechanical strength, the special function for industrial use.
Name | Type | Thichness | Standard size | Description |
Rigid Mica Sheet | HP5(HP5M, HP5P, HP5S) | 0.1~3mm | 1000*2400mm, 1000*1200mm, 1000*600mm | Excellent flexural strength to punch to mica part for high strength framework of heating, electric heating appliance & equipment |
Flexible Mica Sheet | HP5(HP5M-1, HP5P-1, HP5S-1) | 0.1-6mm | 1000*2400mm, 1000*1200mm, 1000*600mm | Easy to winding or wrapping, for heating elements, furnace protection |
Over thick Mica Sheet | HP5-G (HP5M-G, HP5P-G) | 4-100mm | 1000*2400mm, 1000*1200mm, 1000*600mm | High density, mechanical strength, suitable for sawing, drilling, grinding, and even by waterjet cutting method |
Low Smoke Mica Sheet | HP5-L (HP5M-L, HP5P-L) | 0.1-3mm | 1000*2400mm, 1000*1200mm, 1000*600mm | Low smoke and blister-free for FDA heating elements resist high-temperature, like food toasters, microwave oven |
Mica Sheet in Roll | HP5-R | 0.1-0.5mm | 1000mm*100m | Special designed Flexible Mica Sheet in Roll. That is very convenient for furnace use and industrial demand. |
Special Mica Sheet | HP5-S (HP5M-S, HP5P-S) | 0.5-3mm | 1000*2400mm, 1000*1200mm, 1000*600mm | Insert strength material (steel sheet, woven), get extremely flexible toughness, mechanical strength, the special function for industrial use. |
M – Muscovite, P – Phlogopite, S – Synthetic, L – Low Smook and blister-free, G – High Resin, High Strength
Welcome the customized design and inquiry.
Mica sheet packing & delivery
Mica sheets are packed with PE film and carton boxes; each box is about 50 kg.
Then, about 20 carton boxes/1000 kg of mica sheets were fixed on wooden pallets (1200*1000mm).
Then we have our truck to deliver the products directly to Shenzhen Port or Shanghai Port…
