FDA Food Grade Silicone Gasket
Manufacturer & Custom Solutions
FDA Food Grade Silicone Gasket
ZSR Silicone FDA food grade gaskets meet 21 CFR 177.2600 for repeated food contact. They are non-toxic, odorless and handle pasteurization temperatures. Common applications include heat exchangers, mixing vessels and pasteurizer flanges.
FDA 21 CFR 177.2600
Rubber Articles Intended for Repeated Use
LFGB 30&31
EU Food Contact Materials
USP Class VI / ISO 10993
Biocompatibility of Medical Devices
RoHS / REACH
Environmental Compliance
UL 94
Flammability of Plastic Materials
Built to Your Exact Spec
Custom Silicone Gaskets Options
| Image | Product | Type | Short Info | Action |
|---|---|---|---|---|
 | DIN 32676 Silicone Gasket | Standard & Size | DIN 32676 tri-clamp silicone gaskets, FDA food grade, full size range in stock at ZSR factory. | View Details |
 | AS568 Standard Silicone Gaskets | Standard & Size | AS568 standard-size silicone gaskets for groove-based sealing applications. | View Details |
 | DIN 3869 Silicone Sealing Ring | Standard & Size | DIN 3869 profile sealing rings in silicone for hydraulic ports, working from -60°C to +200°C. | View Details |
 | EN 1514-1 Silicone Gasket | Standard & Size | EN 1514-1 silicone flat gaskets for PN flanges, IBC and FF types, standard and custom sizes. | View Details |
 | Custom Die Cut Silicone Gaskets | Standard & Size | Flat silicone gaskets cut to any shape from sheet stock. Precision cutting for exact fits. | View Details |
 | ISO 7483 Silicone Gasket | Standard & Size | Silicone gaskets to ISO 7483 for ISO 7005 flanges, made for international projects and tenders. | View Details |
 | Custom Molded Silicone Gaskets | Standard & Size | Three-dimensional silicone gaskets made by compression or injection molding. For complex sealing shapes. | View Details |
 | ISO 1127 Silicone Gasket | Standard & Size | Sanitary silicone gaskets matched to ISO 1127 stainless steel tube sizes for food and pharma lines. | View Details |
 | Standard Flange Silicone Gaskets | Standard & Size | Silicone gaskets cut to fit pipe flanges. Matches ANSI, DIN and JIS bolt patterns. | View Details |
 | B16.21 Silicone Gasket | Standard & Size | ZSR makes silicone gaskets to ASME B16.21, ring type and full face type, for Class 150 to 2500 pipe flanges. | View Details |
 | ISO 2852 Silicone Gasket | Standard & Size | ISO 2852 silicone clamp gaskets for food industry couplings, FDA grade, factory direct from ZSR. | View Details |
 | Tri-Clamp / Sanitary Silicone Gaskets | Standard & Size | Hygienic silicone gaskets for food and pharmaceutical pipe connections. CIP and SIP compatible. | View Details |
 | B16.5 Silicone Gasket | Standard & Size | Silicone gaskets from ZSR sized to fit ASME B16.5 flanges, NPS 1/2 to 24 inch, Class 150 to 2500. | View Details |
 | Metric Size Silicone Gaskets | Standard & Size | Metric dimension silicone gaskets for international equipment standards. | View Details |
 | DIN 7603 Silicone Sealing Ring | Standard & Size | Flat silicone sealing rings made to DIN 7603 for screw plugs, banjo bolts and threaded fittings. | View Details |
 | DIN 2690 Silicone Gasket | Standard & Size | Silicone flat gaskets to DIN 2690 / EN 1514-1 dimensions for PN6 to PN40 flanges, food grade available. | View Details |
 | DIN 2691 Silicone Gasket | Standard & Size | Silicone gaskets made to DIN 2691 for tongue and groove flanges PN10 to PN160, ideal for plant repair. | View Details |
 | DIN 11851 Silicone Gasket | Standard & Size | Food grade silicone gaskets for DIN 11851 sanitary unions, DN10 to DN150, FDA material. | View Details |
 | FDA Food Grade Silicone Gasket | Grade | Food-safe silicone gaskets for processing equipment. FDA-compliant and taste-neutral. | View Details |
 | Medical Grade Silicone Gasket | Grade | Biocompatible silicone gaskets for medical devices. Sterilizable with full documentation. | View Details |
 | Industrial Grade Silicone Gasket | Grade | General-purpose silicone gaskets for industrial sealing. Reliable, durable and cost-effective. | View Details |
 | High Temperature / Heat Resistant Silicone Gaskets | Special Function | Heat-resistant silicone gaskets rated for continuous use above 200°C. For ovens and furnaces. | View Details |
 | Flame Retardant Silicone Gaskets | Special Function | Self-extinguishing silicone gaskets meeting UL 94 V-0. For fire-safety applications. | View Details |
 | Solid Silicone Rubber Gaskets | Materials | Solid silicone rubber gaskets with excellent compression set resistance and long service life. | View Details |
 | Fluorosilicone (FVMQ) Gaskets | Materials | Fuel and solvent-resistant silicone gaskets for chemical processing and automotive applications. | View Details |
 | Transparent / Clear Silicone Gaskets | Color | Clear silicone gaskets for visible sealing and light-transmitting applications. | View Details |
 | Black / White Silicone Gaskets | Color | Standard black and white silicone gaskets. Fastest delivery from stock. | View Details |
FDA Compliance Explained
FDA 21 CFR 177.2600 is the U.S. regulation for rubber articles intended for repeated use in contact with food. It is the key rule behind every food grade gasket we make. The regulation works in two ways:
1. It controls the recipe. Only ingredients on the FDA's permitted list can go into the compound — the base polymer, the fillers, the curing agents, and the pigments. A silicone that uses a non-listed additive does not comply, no matter how good the base material is.
2. It controls what comes out. The finished rubber must pass extraction tests that measure how much material could migrate into food:
Food Contact Type | Test Method | Limit (First 7 Hours) | Limit (Next 2 Hours) |
|---|---|---|---|
Aqueous (water-based) foods | Distilled water at reflux | ≤ 20 mg per square inch | ≤ 1 mg per square inch |
Fatty foods | n-Hexane at reflux | ≤ 175 mg per square inch | ≤ 4 mg per square inch |
One honest clarification
The FDA does not issue "certificates" for rubber. A gasket is FDA-compliant when its formula follows the regulation and its test results stay under the limits — and we provide the documentation to prove it.
How ZSR makes it safe
Our food grade compounds are platinum cured, which leaves almost no chemical by-products in the rubber. Every batch then goes through a post-curing oven cycle — hours of controlled heating that drives out any remaining volatiles. The result is a gasket that is odorless, tasteless, and stable from the first day of service.
The simple rule
If the gasket touches food, drinks, or food-contact surfaces — directly or indirectly — choose food grade. If it only seals air, dust, or machine parts, industrial grade does the same sealing job for less money. For medical or body contact, step up to medical grade instead.
Application Examples
Our FDA food grade silicone gaskets work across the whole food chain:
Food processing flanges
pipeline and equipment flange seals on mixing, cooking, and filling lines
Dairy Tri-Clamp seals
sanitary gaskets for milk, cheese, yogurt, and ice cream production
Mixing tanks and kettles
manway covers, lid seals, and agitator gaskets
Beverage dispensing
seals in coffee machines, juice dispensers, beer taps, and vending equipment
Commercial ovens and proofers
door seals and panel gaskets that handle baking heat day after day
Bottling and packaging machinery
filler valves, capping heads, and conveyor equipment seals
All available as cut gaskets, molded parts, or sanitary Tri-Clamp styles — in white, translucent, red, or custom colors.
What Is FDA Food Grade Silicone?
FDA food grade silicone is a silicone rubber formulated and manufactured to be safe for repeated contact with food. Every ingredient in the compound — from the base polymer to the pigment — comes from the U.S. FDA's permitted list for food-contact rubber, and the finished material is tested to prove that nothing harmful migrates into food. It looks and feels like ordinary silicone, but behind it is a controlled recipe, a cleaner curing process, and documented proof of safety. It is the material the food industry trusts to seal what we eat and drink.
Key Properties of FDA Food Grade Silicone
