Food-Grade Silicone Sheet
VMQ silicone sheet manufactured with ingredients approved for food contact, post-cured in an oven to eliminate residual volatiles. Available in peroxide cure (general food use) and platinum cure (pharmaceutical, laboratory, GMP environments where minimal by-product generation is required). From sheet rolls for the maintenance engineer to cut gaskets on site, to die-cut parts to drawing for machinery manufacturers.
Silicone is the reference elastomer for food contact due to its chemical inertness, absence of taste and odour, resistance to extreme temperatures and ease of cleaning. But not all silicone on the market complies with food-contact regulations. For a silicone sheet to be suitable, the raw materials in the compound must be approved by the regulatory authorities — FDA in the United States, BfR in Germany, EC 1935/2004 in Europe — and the manufacturing process must include post-curing at high temperature to eliminate the low-molecular-weight volatiles generated during vulcanisation.
We manufacture food-grade silicone sheets in two cure systems. Peroxide cure is the food-industry standard: good mechanical properties, a wide range of hardnesses (30 to 80 Shore A) and colours, optimised cost. Platinum cure offers a higher-purity material with minimal by-product generation — it is the choice for pharmaceutical, laboratory, medical device and GMP applications where biocompatibility and material inertness are critical requirements.
Available in roll form (standard width 1,000 mm, other widths to order) or as custom-cut and die-cut parts. Each batch is supplied with a certificate of conformity, raw material traceability and extraction/migration test results per the applicable standard.
Peroxide or platinum? How to choose the right cure system
The difference is not one of quality — both systems produce silicone that is safe for food contact. The difference is one of residual purity. Peroxide-cured silicone generates curing by-products (organic acids) that are eliminated by post-curing, but traces may remain. For general food use (equipment gaskets, work surfaces, lid seals) it is perfectly adequate. Platinum-cured silicone generates inert by-products (water and alcohol) and the reaction is more complete, leaving a purer material. It is the choice when the plant protocol or regulations demand minimal material-product interaction: pharmaceutical, production of flavour-sensitive beverages (wine, craft beer, spirits), laboratory, baby food, cosmetics.
Which sheet do you need?
Locate your application and the recommended combination of formulation, hardness and thickness.
| Requisito | Formulación | Serie | Proceso |
|---|---|---|---|
| Flange gasket on food equipment | Peroxide (Series 2) | 60 ShA · 2–4 mm | Die-cut to drawing |
| Washer for sanitary pipe connection | Peroxide (Series 2) | 60 ShA · 1–2 mm | Die-cut to drawing |
| Mixing tank lid seal | Peroxide (Series 2) | 50 ShA · 3–6 mm | Die-cut to drawing |
| Food autoclave gasket | Peroxide (Series 2) | 70 ShA · 4–6 mm | Die-cut or vulcanised ring |
| Non-stick surface for tray/mould | Platinum (Series 12) | 50 ShA · 1–2 mm | Custom cut |
| Gasket for GMP pharmaceutical equipment | Platinum (Series 12) | 60 ShA · 2–3 mm | Die-cut to drawing |
| Seal in baby food production | Platinum (Series 12) | 50 ShA · 2–4 mm | Die-cut to drawing |
| Gasket for wine/beer bottling equipment | Platinum (Series 12) | 60 ShA · 2–3 mm | Die-cut to drawing |
| Food worktable surface lining | Peroxide (Series 2) | 60 ShA · 2–3 mm | Custom cut + adhesive |
| Cold room door gasket | See sponge | Food-grade sponge | Custom cut + adhesive |
| Metal-detector-detectable component | See metal-detectable | — | See metal-detectable sheet |
The right sheet for every production environment
Red — the universal standard
Red is the most widespread colour in the industry for general-use food-grade silicone. Its high visibility enables rapid identification of gaskets and seals on stainless-steel equipment. Available in peroxide and platinum cure, across the full range of hardnesses and thicknesses.
White — pharmaceutical and cosmetic
White colour, clean appearance, ideal for environments where material aesthetics matter (pharmaceutical, cosmetic, baby food) or where visual verification of surface cleanliness is required. Common in plants with chromatic cleaning protocols.
Blue — food-industry identification
Blue is the international food-industry standard for components that must not be confused with food product (blue does not exist in nature as a food colour). It facilitates visual detection of fragments. It is the same colour used in the metal-detectable sheet.
Translucent — visual inspection of the seal
Translucent/semi-transparent silicone that allows visual verification of the condition of a joint or surface without removing the gasket. Useful in applications where confirmation that no residue has accumulated between the gasket and the flange is needed.
Black — industrial and multi-purpose
Black silicone, the most visually discreet. Suitable for food applications where colour has no safety function and for general industrial use with food-grade certification as a precaution.
RAL colours to order
For plants with colour-coded production zones or for machinery manufacturers needing a corporate colour, we manufacture food-grade sheet in any RAL colour. The colorant is selected to maintain FDA/EC 1935/2004 compliance — not all pigments are suitable.
Complete range for every sealing need
The combination of hardness + thickness determines gasket behaviour. Low hardness (30–40 ShA) for low-force seals and irregular surfaces. Medium hardness (50–60 ShA) for flange gaskets and standard equipment seals. High hardness (70–80 ShA) for parts under pressure or mechanical stress.
Soft — 30 to 40 Shore A
30 · 40 Shore AVery flexible silicone, high deformability. Conforms to irregular or non-flat surfaces. Ideal for low-pressure seals where closure force is limited. Caution: at these hardnesses the material is more sensitive to tearing — do not use in applications with shear.
- Tensile (MPa min)
- 4–6.5
- Elongation (% min)
- 350–500
- Tear (kN/m min)
- 10–17
Availability: Peroxide and platinum. Thicknesses 0.5 to 12 mm.
Medium — 50 to 60 Shore A
50 · 60 Shore AThe most versatile range. Balance between flexibility and mechanical resistance. 60 Shore A is the industry standard for food-grade flat gaskets. Good elastic recovery, good tear resistance, suitable for most static sealing applications.
- Tensile (MPa min)
- 7.5–8
- Elongation (% min)
- 300–400
- Tear (kN/m min)
- 17–20
Availability: Peroxide and platinum. Thicknesses 0.5 to 12 mm. 60 ShA red in stock.
Hard — 70 to 80 Shore A
70 · 80 Shore ARigid silicone with high resistance to pressure and cold flow. For applications where the gasket works under significant mechanical load or where dimensional stability under constant pressure is needed. Lower adaptability to irregularities — requires machined sealing surfaces.
- Tensile (MPa min)
- 7.5–9.5
- Elongation (% min)
- 100–300
- Tear (kN/m min)
- 15–23
Availability: Peroxide and platinum. Thicknesses 0.5 to 10 mm.
Standard thicknesses: 0.5 · 0.8 · 1 · 1.5 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 mm. Standard roll width 1,000 mm. Other widths and intermediate thicknesses to order. Thickness tolerance per ISO 3302 Class 3.
Two cure systems, one and the same food safety
Peroxide cure — Series 2
VMQ silicone cured with organic peroxide. The most widespread cure system in the food industry. Good mechanical properties across the full hardness range (10 to 90 Shore A). The curing reaction generates acidic by-products that are eliminated by post-curing in an oven. Reliable, economical and proven over decades of industrial use.
General food industry, beverages, dairy, meat, industrial bakery, confectionery, canning, food packaging.
| Hardness (Shore A) | Tensile (MPa min) | Elongation (% min) | Tear (kN/m min) | Density (g/cm³) |
|---|---|---|---|---|
| 30 | 6 | 450 | 15.5 | 1.12 |
| 40 | 6.5 | 500 | 17 | 1.12 |
| 50 | 7.5 | 400 | 20 | 1.14 |
| 60 | 7.5 | 400 | 20 | 1.15 |
| 70 | 9.5 | 300 | 23 | 1.19 |
| 80 | 8.5 | 250 | 20 | 1.20 |
Data: Series 2 Progress Silicones. Standards: hardness ISO 7619-1, tensile/elongation ISO 37, tear ISO 34-1, density ISO 2781. Temperature range –60 °C to +200 °C (up to +300 °C with high-temperature additive). Colours: red, white, blue, translucent, black, RAL to order.
Platinum cure — Series 12
VMQ silicone cured with platinum complex (addition). The curing reaction is cleaner: it generates inert by-products (water, ethyl alcohol) instead of organic acids. The result is a material with lower volatile residue, lower residual taste/odour and greater biocompatibility. It is the formulation required by many pharmaceutical and medical device standards.
Pharmaceutical, laboratory, medical devices, baby food, cosmetics, flavour-sensitive beverages (wine, craft beer, spirits), GMP environments, cleanrooms.
| Property | Typical value | Standard |
|---|---|---|
| Hardness | 10 to 90 Shore A (±5) | ISO 7619-1 |
| Tensile (60 ShA ref.) | ≥ 7.5 MPa | ISO 37 |
| Elongation (60 ShA ref.) | ≥ 400% | ISO 37 |
| Tear (60 ShA ref.) | ≥ 20 kN/m | ISO 34-1 |
| Temperature range | –60 to +200 °C | — |
| Biocompatibility | ISO 10993 (per formula) | — |
Data: Series 12 Progress Silicones. Platinum cure also enables ISO 10993 (biocompatibility) certification for medical applications — the applicable clauses depend on the specific formulation. USP Class VI on request.
VMQ silicone cured with organic peroxide. The most widespread cure system in the food industry. Good mechanical properties across the full hardness range (10 to 90 Shore A). The curing reaction generates acidic by-products that are eliminated by post-curing in an oven. Reliable, economical and proven over decades of industrial use.
General food industry, beverages, dairy, meat, industrial bakery, confectionery, canning, food packaging.
| Hardness (Shore A) | Tensile (MPa min) | Elongation (% min) | Tear (kN/m min) | Density (g/cm³) |
|---|---|---|---|---|
| 30 | 6 | 450 | 15.5 | 1.12 |
| 40 | 6.5 | 500 | 17 | 1.12 |
| 50 | 7.5 | 400 | 20 | 1.14 |
| 60 | 7.5 | 400 | 20 | 1.15 |
| 70 | 9.5 | 300 | 23 | 1.19 |
| 80 | 8.5 | 250 | 20 | 1.20 |
Data: Series 2 Progress Silicones. Standards: hardness ISO 7619-1, tensile/elongation ISO 37, tear ISO 34-1, density ISO 2781. Temperature range –60 °C to +200 °C (up to +300 °C with high-temperature additive). Colours: red, white, blue, translucent, black, RAL to order.
VMQ silicone cured with platinum complex (addition). The curing reaction is cleaner: it generates inert by-products (water, ethyl alcohol) instead of organic acids. The result is a material with lower volatile residue, lower residual taste/odour and greater biocompatibility. It is the formulation required by many pharmaceutical and medical device standards.
Pharmaceutical, laboratory, medical devices, baby food, cosmetics, flavour-sensitive beverages (wine, craft beer, spirits), GMP environments, cleanrooms.
| Property | Typical value | Standard |
|---|---|---|
| Hardness | 10 to 90 Shore A (±5) | ISO 7619-1 |
| Tensile (60 ShA ref.) | ≥ 7.5 MPa | ISO 37 |
| Elongation (60 ShA ref.) | ≥ 400% | ISO 37 |
| Tear (60 ShA ref.) | ≥ 20 kN/m | ISO 34-1 |
| Temperature range | –60 to +200 °C | — |
| Biocompatibility | ISO 10993 (per formula) | — |
Data: Series 12 Progress Silicones. Platinum cure also enables ISO 10993 (biocompatibility) certification for medical applications — the applicable clauses depend on the specific formulation. USP Class VI on request.
From the roll to your food-grade gasket
We supply sheet in roll form (for self-cutting on site), custom-cut pieces and die-cut gaskets to drawing. For applications that cannot be solved with flat sheet, we supply food-grade silicone in extruded, moulded and vulcanised form.
Application sectors
Food & Beverage
Gaskets, seals and linings FDA/EC 1935/2004 for food processing, packaging and storage.
Pharmaceutical
Platinum-cured sheet for seals in GMP equipment and pharmaceutical cleanrooms.
Medical
ISO 10993 biocompatible silicone for gaskets and membranes in medical devices.
Laboratory
High-purity (platinum) sheet for surfaces and seals in laboratory equipment.
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TIXAN'AIR® Inflatable Seals
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Need food-grade sheet for your plant or your equipment?
Tell us the application (type of food product in contact, working temperature, pressure), the required standard (FDA, EC 1935/2004, BfR, ISO 10993), the dimensions (thickness, length, width or gasket drawing) and the quantity. We provide a quotation with the appropriate formulation and the complete documentation for your food safety file.
Request quotation