Small Foam Silicone Strip (Food Grade)
Lightweight closed-cell silicone foam strip moulded from food-grade compound, giving reliable shock absorption and sealing for food processing and packaging equipment.
Technical Specifications
| Material | Silicone Foam |
| Hardness | 20~40 Shore A |
| Operating Temperature | -50°C to 180°C |
| Specific Gravity | 0.35-0.55 g/cm3 |
| Hardness Range | 10-35 Shore A |
| Cell Structure | Closed cell |
| Colour | Natural, translucent or Pantone matched |
| Packing | 50 M/roll, or to your requirement |
| MOQ | On request - depends on profile and quantity |
Key Features
- Lightweight
- Soft and resilient
- Shock and noise absorbing
- Dust and waterproof
- UL94 V-0 optional
Typical Applications
- Food machinery seals
- Packaging equipment gaskets
- Light-duty food sealing
Selection & Fitting Notes
- Pick the cell structure first: closed cell for keeping air and water out, open cell for cushioning or venting. They are not interchangeable.
- Sponge seals work at partial compression. Compressing one down to solid kills the rebound and it will not recover - leave headroom in the design.
- Sponge is not a pressure seal. Where there is a real pressure differential across the joint, use a solid profile instead.
- When replacing an existing seal, match density as well as size - density drives both closing force and how it springs back.
Frequently Asked Questions
What is the lead time for Small Foam Silicone Strip (Food Grade)?
Stock profiles of this type are held in inventory and can ship immediately. Custom extrusions of Small Foam Silicone Strip (Food Grade) take 2-4 weeks, including tooling and production. Expedited service is available if you need the parts sooner.
Can I get samples of Small Foam Silicone Strip (Food Grade) before placing a full order?
Yes. We can send prototype samples or run a small trial batch of Small Foam Silicone Strip (Food Grade) so you can test fit, compression set and performance before committing to a production order. Sample policy and freight terms are confirmed together with your quotation.
Do you make the tooling for Small Foam Silicone Strip (Food Grade) in-house?
Yes. We build our own extrusion dies and tooling in-house, which shortens lead times for custom small foam silicone strip (food grade) and keeps dimensional accuracy and batch-to-batch repeatability under tighter control.
Should I choose closed cell or open cell Small Foam Silicone Strip (Food Grade)?
Closed cell if the job is keeping air, dust or water out - the cells are sealed from each other. Open cell if you need cushioning, ventilation or drainage. They are not substitutes for one another, so decide on the function before the size.
Can Small Foam Silicone Strip (Food Grade) replace a solid strip in my existing joint?
Only where there is no real pressure differential. Sponge is a gap filler and a buffer, not a pressure seal - across a pressurised joint a solid profile is the right choice. Send us what the joint has to hold back and we will tell you which one it needs.
Will Small Foam Silicone Strip (Food Grade) take a permanent set over time?
Any sponge will lose some rebound if it is held compressed, and heat and compression both accelerate it. The practical fix is in the design: leave headroom so the seal is not compressed down to solid. Temperature and compression together drive how long it springs back.
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