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A narrow lip does not provide the desired contact geometry.
The hollow bulb creates a broader compression region.
STJH-AIRTIGHT-CLEANROOM-DOOR-GASKET-SILICONE-HOLLOW
Airtight Cleanroom Door Gasket Food-Grade Silicone Hollow
Select a hollow silicone bulb when the door needs a compliant passive perimeter contact.
- Hollow geometry provides room for controlled compression.
- Silicone construction differs from a solid EPDM lip.
- The replaceable extrusion can follow a continuous perimeter.
Product Introduction
The gasket uses a hollow silicone cross-section that deforms under the closing force of the leaf. Unlike a thin lip, the bulb presents a broader resilient contact region around the door perimeter. It is produced as an extrusion for a compatible retaining arrangement, with length and cross-section matched to the opening. The material family is used for food-related and controlled-environment sealing applications where silicone is the specified elastomer.
Key Features
- Hollow geometry provides room for controlled compression.
- Silicone construction differs from a solid EPDM lip.
- The replaceable extrusion can follow a continuous perimeter.
Technical Parameters
| Elastomer | Food-grade silicone |
|---|---|
| Cross-Section | Hollow bulb |
| Hardness Range | Shore A 50–70 |
| Material Temperature Range | Approximately -60 to +230°C, compound dependent |
| Operation | Passive compression |
| Manufacture | Extrusion |
| Installation | Compatible retained perimeter profile |
| Sealing Face | Compressible bulb surface |
| Actuation Supply | None |
| Customization | Bulb dimensions and length can suit the intended closing gap and operating environment. |
Applications
- Silicone-specified medical door seals.
- Food-related clean-area access assemblies.
Solutions for Your Application
The seal must fit a particular perimeter gap.
Specify a suitable bulb section and retaining profile.
Available Options
- Alternative hollow cross-sections.
- Door-width and perimeter lengths.
- Compatible corner joining.
Planning a Airtight Cleanroom Door Gasket Food-Grade Silicone Hollow specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
