Reinforced Mica Gasket (B501R Style)

At Kriloha Ltd., we recognize that when temperatures exceed 600°C, most conventional sealing materials simply vanish. In the “Extreme Heat Zone,” you need a material that is closer to stone than plastic. The Kriloha Reinforced Mica Gasket (SUNWELL B501R Style) is our engineered answer for volcanic-level heat. As a premier global supplier of industrial seals, Kriloha Gaskets has mastered the Tanged-Core Lamination process required to turn delicate mica flakes into a rugged industrial barrier.

The engineering of the B501R style is based on Mineral Resilience. We utilize Phlogopite Mica because of its superior water resistance and thermal ceiling compared to Muscovite mica. At Kriloha, we mechanically bond these mica layers to a 316L Stainless Steel tanged core. The “tangs” (sharp metal teeth) pierce through the mica, locking it in place. This ensures that even if the system experiences high-velocity gas flow or intense vibration, the mica cannot be “scrubbed” away or pushed out of the flange.

[Image showing the cross-section of tanged metal reinforcement within the mica layers]

Manufacturing these gaskets at Kriloha involves precision CNC Waterjet Cutting. Because mica is a mineral, it can be brittle; our high-pressure waterjet process ensures clean, crack-free edges and perfect bolt-hole alignment. Whether you are sealing a high-heat exhaust header or a critical furnace bypass, Kriloha Mica Gaskets provide the thermal invincibility and mechanical stamina your most extreme assets demand. By choosing Kriloha Ltd., you are investing in a “Thermal Fortress” for your piping system.

Primary Use Cases

Exhaust Manifolds & Turbochargers: The industry standard for sealing high-heat engine exhaust systems in heavy machinery and marine vessels.
Gas Turbines & Burners: Providing a robust, heat-proof seal for combustion chambers and hot gas ducting.
Steel & Glass Manufacturing: Used in smelting and furnace equipment where gaskets are exposed to molten ambient heat.
Chemical Incinerators: Resisting the extreme temperatures and corrosive flue gases generated during waste-to-energy processes.
Hot Air & Flue Gas Ducting: Ideal for large-diameter expansion joints and flanges in industrial oven and kiln systems.

FAQs

Why use Mica instead of Graphite for high temperatures?

While graphite is excellent, it begins to oxidize (burn away) in air above 450°C. Mica is an inorganic mineral that does not oxidize, making it the only choice for applications reaching 900°C–1000°C in open-air environments.

Is this gasket “Gas-Tight”?

Mica is slightly more porous than graphite or rubber. For applications requiring a “bubble-tight” seal at high pressure, Kriloha often recommends a Mica-Graphite hybrid or using the B501R in a high-load flange where the material can be fully densified.

How does the metal reinforcement help?

Pure mica is very fragile. The SS316L tanged core makes the gasket easy to handle and install without breaking. More importantly, it provides “Blowout Protection” by pinning the mica in place against the internal pressure.

Can I use Mica gaskets for steam service?

Yes, but primarily for superheated steam at very high temperatures. For standard saturated steam, Kriloha generally recommends our Spiral Wound or Reinforced Graphite gaskets as they offer better sealability at lower temperatures.

Does it require a specific flange finish?

Because mica is relatively hard, it performs best on standard Gramophone (serrated) flange finishes which help “bite” into the material. It requires a higher bolt load than soft rubber to achieve a full seal.