Product introduction
PAMICA 5662 series are Rigid Mica sheets for heater consisted of high quality Muscovite and phlogopite mica paper, impregnated with high temperature resistant organic silicon resin after melting and laminating process.
They are the ideal alternative for asbestos insulations, and specially developed for providing outstanding thermal and electrical insulation for various heating elements used in household and industrial appliances such as hair dryers, tumble dryers, strip heaters，and for all other applications where excellent resistance to thermal, mechanical and electrical properties are required. Fire resistance classification UL94 (94 V-0), IEC 60371-3-3 conformity.
Pamica® Mica sheet
| Products | Type | Thickness | Standard Size | Remark |
|---|---|---|---|---|
| Rigid Mica sheets | PB5662 | 0.3-1.5MM | 1000x2400MM | Suitable for corrugated mica part,small punched mica part,high strength framework of heater. |
| Flexible Mica sheet | PB5161 | 0.08-6MM | 1000*2400MM | Suitable to winding or wrapping, No recovery. |
| Overthick Mica plate | PB5761 | 2-100MM | 1000*2400MM | High dielectric strength, suitable for machined mica parts with drilling,milling and turning. |
| Mica Commutator Sheet | PB5531 | 0.15-2.0MM | 1000*1200MM | Insulation between copper segment of commutators |
They are offered in different types to meet individual requirement of users as follows:
| Type | Instructions |
|---|---|
| PB5662-L | A special low smoke and blister-free muscovite grade. It fully resists the extreme high temperature cycles typically encountered for example, in food grade toasters, micro-wave oven |
| PB5662 | Standard muscovite grade for all heating elements of hair dryers, irons, heating oven, band heaters, nozzle heaters, etc. |
| PB5662-G | A higher density muscovite grade with smoother surfaces by steel pressing.. Most suitable for punching highly detailed pieces or when imprinting is required. |
| PJ5662-L | A special low smoke and blister-free phlogopite grade. Softer and more heat resistant. |
| PJ5662 | The standard Phlogopite grade for heating elements operating in an extreme temperature range |
Availability
Sheet of 1000 X 600mm,1000 X 1200mm, 1000 X 2000mm,1000 X 2400mm.
Thickness 0.1-1.95mm.
Customized strips or parts according to customers’ drawings and/or requirements.
Technical Date
| Type | PB5662 | PB5662-L | PB5662-G | PJ5662 | PJ5662-L | Test Standard |
|---|---|---|---|---|---|---|
| Mica content % | ≥90 | ≥90 | ≥90 | ≥90 | ≥90 | IEC371 |
| Bond content % | ≤10 | ≤8 | ≤12 | ≤10 | ≤8 | IEC371 |
| Density g/cm3 | 1.7-2.25 | 1.7-2.25 | 1.7-2.35 | 1.7-2.25 | 1.7-2.25 | IEC371 |
| Heat resistance Continuous ℃ | 500 | 500 | 500 | 700 | 700 | - |
| Heat resistance Intermittent ℃ | 700 | 700 | 700 | 900 | 900 | - |
| Heat loss at 500 ℃ % | ≤1 | ≤1 | ≤2 | ≤1 | ≤1 | IEC371 |
| Heat loss at 700 ℃ % | ≤2 | ≤1.5 | ≤3 | ≤2 | ≤1.5 | IEC371 |
| Flexural strength N/mm2 | ≥160 | ≥120 | ≥180 | ≥140 | ≥100 | GB/T5019 |
| Water absorption 24h/23 ℃ % | ≤1 | ≤2 | ≤0.5 | ≤1.5 | ≤2.5 | GB/T5019 |
| Dielectric strength kV/mm | ≥20 | ≥18 | ≥20 | ≥20 | ≥18 | IEC243 |
| Volume resistivity 23 ℃ ohm.cm | >10 17 | >10 17 | >10 17 | >10 17 | >10 17 | IEC93 |
| Volume resistivity 500 ℃ ohm.cm | >1012 | >1012 | >1012 | >1012 | >1012 | IEC93 |