Black / White Silicone Gaskets
Manufacturer & Custom Solutions
Black / White Silicone Gaskets
Black and white silicone gaskets are our fastest-moving colors. Black hides grease and dirt; white signals food-grade or cleanroom suitability. Both are in stock in common sizes, with custom colors available on request.
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 |
Black vs White: More Than Just Color
A black gasket and a white gasket may come from the same silicone sheet — but the pigment inside is not just about looks:
Factor | Black Silicone | White Silicone |
|---|---|---|
Pigment Used | Carbon black | Titanium dioxide |
UV Resistance | Excellent — carbon black absorbs UV and protects the polymer, the best choice for outdoor gaskets | Good — long, strong sunlight may slowly yellow the surface, but sealing performance stays intact |
Heat Stability | Slightly better long-term heat aging — carbon black acts as a mild heat stabilizer | Standard silicone heat stability |
Mechanical Strength | A touch stiffer and stronger — carbon black doubles as a reinforcing filler | Standard silicone flexibility |
Electrical Properties | Antistatic versions available on request | Naturally insulating — the safer pick for electrical isolation |
Appearance | Uniform deep black; hides dirt, scuffs, and cutting marks | Bright, clean white; any contamination is visible at a glance — an advantage for hygiene inspections |
Typical Uses | Outdoor enclosures, HVAC flanges, machinery covers, automotive gaskets | Food equipment, pharmaceutical machines, medical devices, appliance seals |
Both colors seal exactly the same — same temperature range, same elasticity, same service life. Pick black for outdoor and industrial work, white wherever cleanliness must be visible, or simply the one your product design needs.
Color Consistency Control
When you reorder a white gasket next year, it should match the one in your hand today. Here is the process behind that promise at ZSR Silicone Parts:
Pre-dispersed masterbatches
We color our compounds with pre-dispersed silicone masterbatches — pigment already milled into a silicone carrier by our supplier. No raw powder dosing, no streaks, no dark specks, and no unevenly colored corners on your gaskets.
Colorimeter measurement
Each batch is checked against our master color standard with a colorimeter. The color difference (ΔE) is measured and recorded — consistency is controlled by numbers, not by eyes.
Batch-to-batch control
Every compound batch carries a full record: masterbatch lot, mixing date, cure settings, and test results. Repeat orders are matched against your previous batch data, so reorder equals reorder — same color, same hardness, same gasket.
Visual inspection
Finished gaskets pass a final visual check under controlled lighting for color uniformity, contamination, and surface defects before packing.
For white silicone, production runs on a dedicated clean line — separated from black and colored compounds — so the white you receive is pure white, never gray-tinted by leftover residue.
What Is Black / White Silicone?
Black and white are the most widely used colors in silicone gasket production. They come from the same proven silicone elastomer — only the pigment differs. Black silicone is colored with carbon black, a classic rubber additive that has reinforced and protected industrial rubber for over a century. White silicone uses titanium dioxide, a bright, chemically stable pigment trusted in food packaging and cosmetics. Underneath the color, both remain pure silicone: flexible in the cold, stable in the heat, and durable for years of service. Two colors, one dependable material.
Key Properties of Black and White Silicone
