Custom Rubber Compounding Silicone Nitrile Rubber Gasket Sheet

Our custom rubber compounding silicone nitrile gasket sheet is crafted through advanced elastomer blending technology, integrating the core advantages of silicone rubber and nitrile (NBR) rubber while allowing full customization of size, thickness, hardness, and formulation. Unlike single-material gasket sheets, this hybrid compound leverages silicone’s outstanding heat resistance (up to 200°C, optional 250°C) and biocompatibility, paired with NBR’s excellent oil, fuel, and grease resistance—creating a balanced solution for applications where extreme temperatures, chemical contact, and mechanical stress coexist.

Each gasket sheet undergoes strict quality control during production, ensuring uniform thickness, consistent material properties, and reliable sealing performance. Whether you need a small custom gasket for precision machinery or a large sheet for industrial equipment, our compounding process guarantees that the silicone-Nitrile blend maintains optimal flexibility, tensile strength, and compression set resistance, eliminating common gasket failures like tearing, deformation, and leakage.

•   Silicone Rubber Core: Delivers exceptional high-temperature resistance (-60°C to 200°C, max 250°C for special formulations), UV resistance, and non-toxicity—ideal for high-heat environments and food/medical contact.
•   NBR Nitrile Enhancement: Boosts oil, fuel, lubricant, and hydrocarbon resistance, making it perfect for automotive, hydraulic, and oilfield applications.
•   Balanced Performance: The compounded blend avoids silicone’s low oil resistance and NBR’s poor high-temperature limitation, creating a "best of both worlds" solution for complex operating conditions.

•   Custom Size & Thickness: Available in thicknesses from 0.5mm to 10mm (precision tolerance ±0.1mm) and custom sheet sizes (1m×2m, 1.2m×2.4m, or tailored to your specifications).
•   Custom Hardness: Shore A 40-90 adjustable to match application needs (soft for shock absorption, medium for general sealing, hard for high-wear components).
•   Custom Formulation: Optimize for specific requirements—food-grade (FDA-compliant), medical-grade, flame-retardant, or chemical-resistant (resist acids, alkalis, and solvents).
•   Custom Color: Standard black, white, or custom colors (upon request) for identification or aesthetic needs.

•   Excellent Compression Set Resistance: Maintains shape and sealing integrity after repeated compression and thermal cycles, preventing permanent deformation.
•   High Tear & Abrasion Resistance: Reinforced compounding with premium fillers enhances structural strength, resisting tearing during installation and wear during long-term use.
•   Broad Chemical Compatibility: Resists water, steam, weak acids, alkalis, and mineral oils (note: not recommended for strong polar solvents or petroleum-based fuels without custom blending).

Compatible with standard gasket manufacturing processes, including die-cutting, punching, molding, and extrusion. The uniform silicone-Nitrile blend allows seamless production of custom gasket shapes (O-rings, flange gaskets, heat exchanger gaskets, etc.) to fit all major equipment brands (Alfa Laval, GEA, Tranter, etc.).

Our compounded silicone-nitrile gasket sheet is suitable for a wide range of industrial and commercial applications, where dual elastomer properties are critical:

•   Automotive Industry: Engine gaskets, fuel system seals, hydraulic component gaskets, and exhaust system heat-resistant gaskets.
•   Food & Beverage Processing: Sanitary gaskets for mixing tanks, pipelines, and heat exchangers (FDA-compliant silicone-Nitrile blend).
•   Chemical Processing: Seals for chemical pumps, valves, and reactors (resist weak corrosive media and temperature fluctuations).
•   HVAC & Refrigeration: Heat exchanger gaskets, air conditioning unit seals, and cold storage door gaskets.
•   Medical Equipment: Seals for diagnostic devices, medical instruments (biocompatible, non-toxic silicone-Nitrile compound).
•   Industrial Machinery: Hydraulic system gaskets, gearbox seals, and conveyor belt side seals.
•   Marine & Aerospace: Corrosion-resistant gaskets for marine engines and aerospace thermal control systems.

As a professional rubber compounding manufacturer, we stand out in the industry with our expertise in silicone-Nitrile blending and custom gasket solutions. Here’s why global customers trust us:

With over 20 years of experience in elastomer compounding, our R&D team holds 50+ patents for silicone-Nitrile blend formulations. We use precision mixing equipment to ensure uniform distribution of additives, fillers, and vulcanizing agents, eliminating performance inconsistencies in every gasket sheet.

Each batch of gasket sheets undergoes rigorous testing, including:

•   Hardness testing (Shore A tester)
•   Tensile/tear strength testing (universal testing machine)
•   High/low temperature resistance test (-60°C to 250°C)
•   Compression set test (per ISO 815)
•   Chemical resistance test (per ISO 1817)

We adhere to ISO 9001:2015 quality management standards, ensuring all products meet global industry requirements.

We offer one-stop customization services, from material formula design to finished gasket production:

•   Custom blend ratios (silicone:NBR adjustable from 10:90 to 90:10)
•   Custom hardness, size, and thickness
•   Specialized formulations (flame-retardant, food-grade, medical-grade)
•   OEM/ODM services (custom gasket shapes, branded packaging)

All our silicone-Nitrile gasket sheets comply with CE, RoHS, and REACH certifications. For food and medical applications, we provide FDA-compliant and NSF-compliant formulations, ensuring safety and reliability in regulated industries.

We leverage vertical integration in raw material sourcing and manufacturing to offer high-quality custom gasket sheets at competitive prices. Our flexible minimum order quantity (MOQ) supports small-batch custom orders and large-scale bulk production, with fast lead times (7-15 days for standard orders, 15-25 days for custom formulations).

Our dedicated technical team provides round-the-clock support to help you select the optimal silicone-Nitrile blend and gasket design for your application. We offer free small samples for testing, allowing you to verify performance, compatibility, and sealing effect before placing bulk orders.

Quality is the core of our products. Our custom silicone-nitrile rubber gasket sheet manufacturing facility is equipped with state-of-the-art testing equipment, including high-temperature ovens, compression set testers, and oil resistance test chambers.

We strictly follow ISO 9001:2015 quality management procedures, and all products are certified:

•   ISO 9001:2015: Quality management system certification
•   CE: European conformity certification
•   RoHS: Restriction of Hazardous Substances certification
•   REACH: EU registration, evaluation, authorization, and restriction of chemicals certification
•   FDA: Food and Drug Administration certification (for food-grade applications)
•   NSF: National Sanitation Foundation certification (for industrial safety)

We tailor every gasket sheet to your exact needs with the following flexible customization options:

Silicone-Nitrile blended gaskets combine the strengths of both materials: silicone’s high-temperature resistance and non-toxicity, plus NBR’s oil/fuel resistance. Single-material silicone gaskets lack oil resistance, while single-material NBR gaskets cannot withstand high temperatures above 120°C. Our blended solution solves the limitations of single-material gaskets, making it ideal for complex operating conditions.

Yes. Our R&D team can adjust the blend ratio (silicone:NBR from 10:90 to 90:10) based on your application requirements. For example, a 30:70 blend is ideal for automotive engine gaskets (prioritizing NBR’s oil resistance with silicone’s heat resistance), while a 70:30 blend is perfect for food-grade applications (prioritizing silicone’s biocompatibility with slight NBR enhancement).

Our standard silicone-Nitrile gasket sheet operates reliably in a temperature range of -60°C to 200°C. For extreme high-temperature applications (e.g., industrial furnaces, aerospace systems), we offer a special high-temperature formulation that can withstand up to 250°C with minimal performance degradation.

Yes. We provide FDA-compliant food-grade and medical-grade silicone-Nitrile blends, which are non-toxic, odorless, and resistant to food/medical media (acids, alkalis, disinfectants). These gaskets meet strict safety standards and are suitable for food processing equipment, medical instruments, and pharmaceutical manufacturing.

Lead times vary by customization complexity:

•   Standard sizes/thicknesses: 7-10 days
•   Custom sizes/thicknesses: 10-15 days
•   Special formulations (food/medical grade, flame-retardant): 15-25 days

We also offer expedited production for urgent orders (additional fees apply).

Absolutely. Our gasket sheet is compatible with all common rubber processing methods, including die-cutting, punching, compression molding, injection molding, and extrusion. The uniform blend ensures clean cutting and precise shaping, with no cracking or deformation during processing.

When stored in a cool, dry, dark environment (away from direct sunlight, ozone, and high temperatures >30°C), our silicone-Nitrile gasket sheet has a shelf life of 18-24 months. After the shelf life, the material can still be used if it passes our quality inspection (hardness, tensile strength, and sealing performance tests).

Yes. We provide free small samples (10cm×10cm or custom small sizes) of our silicone-Nitrile gasket sheet for you to test hardness, sealing performance, and compatibility with your equipment. For custom formulations or special sizes, we offer sample production at a discounted price (refundable upon bulk order).

All our gasket sheets comply with ISO 9001:2015, CE, RoHS, and REACH certifications. For specialized applications, we can provide additional certifications:

•   FDA certification (food-grade)
•   NSF certification (industrial safety)
•   UL certification (flame-retardant grade)

Our MOQ is flexible to meet different customer needs:

•   Standard gasket sheets: MOQ 10 pieces
•   Custom-cut gaskets: MOQ 50 pieces
•   Custom formulation sheets: MOQ 100 square meters

We also support small-batch orders for sample testing or small-scale production.

Ready to source high-performance custom silicone-Nitrile rubber gasket sheets? Contact our team today to discuss your application requirements, request free samples, or get a personalized quote. Our technical experts will help you design the perfect gasket solution to meet your sealing needs, ensuring long-term reliability and cost savings.