Silicone Diaphragms
High-performance silicone diaphragms for flexible, hygienic, leak-proof sealing in critical process equipment.
By quote — pricing on enquiry
- Material
- Platinum-cured or peroxide-cured silicone
- Service temperature
- −60 °C to +260 °C
- Compliance
- FDA and USP Class VI grades
- Category
- Custom Silicone Products
Product information
Makvin Polymer manufactures high-performance silicone diaphragms that provide flexible, hygienic, leak-proof sealing in critical process equipment. Made from platinum-cured or peroxide-cured silicone depending on application needs, they deliver reliable performance in both static and dynamic sealing. In pharmaceuticals, biotech, food processing, and engineering, silicone diaphragms are essential for contamination-free operation and safe, sterile product handling.
Key features
- High flexibility — performs under repeated compression and flexing without losing integrity
- Wide temperature range — operates reliably from −60 °C to +260 °C
- Hygienic and safe — FDA and USP Class VI compliant grades for pharma and food use
- Chemical resistance — withstands cleaning agents, solvents, and steam sterilization
- Durable — resistant to wear, tearing, and cracking under long-term use
- Customizable — various sizes, thicknesses, and hardness options
Why Choose Makvin Polymer Silicone Diaphragms?
- Manufactured in controlled environments for purity and consistency.
- In-house compounding and tooling for faster customization and delivery.
- Proven track record in critical pharma and food processing equipment.
- Designed for long life, repeated sterilization, and zero leakage.
| Material | Platinum-cured or peroxide-cured silicone |
|---|---|
| Service temperature | −60 °C to +260 °C |
| Compliance | FDA and USP Class VI grades |
| Options | Custom size, thickness, hardness |
| Category | Custom Silicone Products |
| Pricing | By quote — made to order |
| Availability | Made to order; stocked lines dispatched from inventory |
Values are for standard silicone grades as published by Makvin Polymer. Exact dimensions, tolerance, durometer and compliance are confirmed against your specification at quotation.
- Pharmaceutical & Biotech – Used in diaphragm valves, pumps, and Fluid Bed Dryers (FBDs).
- Food & Beverage Industry – Hygienic sealing in mixing, filling, and dispensing equipment.
- Medical Equipment – In devices requiring sterile, flexible sealing components.
- Industrial Applications – Actuators, regulators, and pumps where precision sealing is critical.
- Cleanroom Systems – CIP/SIP-compatible diaphragms for contamination-free environments.
Datasheets, material declarations (FDA / USP Class VI), RoHS/REACH statements and dimensional drawings for this product are issued on request with your quotation.
Request documentationPlatinum-cured silicone is addition-cured — odourless, low in extractables and preferred for medical, pharmaceutical and high-purity food contact. Peroxide-cured silicone is a robust, cost-effective choice for industrial and non-critical transfer. We supply both and will advise the right grade for your process.
Yes. Most items are produced to your drawing — bore/OD, wall, length, cross-section, durometer and colour. Send dimensions with your quote request.
Depending on the grade selected: FDA 21 CFR 177.2600, USP Class VI, ISO 10993, EU 1935/2004 food-contact, RoHS and REACH statements, plus batch material certificates and dimensional reports.
Sampling quantities are available for evaluation. Production MOQ depends on the profile/tool; we confirm it with the quotation.
Stocked lines ship within a few working days. Custom extrusions and moulded parts are typically confirmed per order after drawing sign-off.
Related products
All in Custom Silicone Products
Custom Silicone Products Silicone Bellows
Silicone bellows that absorb movement, vibration, and misalignment while keeping a hygienic, leak-proof connection. Discover More →
Custom Silicone Products Customized Silicone Products
Customized silicone products tailored to the exact specifications of your process, equipment, or project. Discover More →
Custom Silicone Products 