Mica
Mica-based gasket fillers use naturally heat-resistant layered silicate minerals, commonly phlogopite or muscovite, often combined with a binder. They are selected for high-temperature service where graphite oxidation may be limiting.
Mica Information
Mica-based gasket fillers use naturally heat-resistant layered silicate minerals, commonly phlogopite or muscovite, often combined with a binder. They are selected for high-temperature service where graphite oxidation may be limiting.
Metallic winding and compatible ring components where service conditions are suitable.
| Typical Mineral | Phlogopite or muscovite mica |
|---|---|
| Material Type | Layered silicate mineral / mica composite |
| Exact Formulation | Product-specific |
| Common / Applicable Specification | Manufacturer/product specification required |
| Typical Gasket Use | Metallic winding and compatible ring components where service conditions are suitable. |
Mica Chemical Composition
Reference composition limits are shown below. Exact requirements should be confirmed against the applicable product specification and certified material documentation.
| Element / Constituent | Symbol | Composition / Information |
|---|---|---|
| Phlogopite Reference | — | KMg₃(AlSi₃O₁₀)(OH)₂ |
| Muscovite Reference | — | KAl₂(AlSi₃O₁₀)(OH)₂ |
| Binder / Reinforcement | — | Product-specific |
| Impurities | — | Natural-mineral source dependent |
Mica Mechanical Properties
Mica filler is normally supplied as a composite paper/tape rather than as monolithic mineral, so mechanical values are product-specific.
| Property | Reference Value | Unit / Basis |
|---|---|---|
| Tensile Strength | Composite/product dependent | — |
| Compressibility | Product-dependent | % |
| Density | Product-dependent | g/cm³ |
Values shown are engineering reference data, not universal design allowables. Final procurement and design must use the governing specification, exact product form/condition and certified material test documentation.
Mica Physical & Service Information
Reference physical properties and service considerations relevant to material selection for Spiral Wound Gaskets.
| Temperature Capability | Phlogopite-based sealing products may be rated near 1000°C; actual continuous-use limit depends on binder and construction. |
|---|---|
| Oxidation Behaviour | Mica is not consumed by oxidation like graphite. |
| Electrical Behaviour | Naturally electrically insulating. |
| Chemical Resistance | Depends on mineral type, binder and process chemistry. |
| Service Selection | Use the exact mica sealing product datasheet; generic mineral data are insufficient for gasket design. |
Specify Mica for your gasket
Share your gasket dimensions, service conditions and quantity for Mica material options and pricing.