HEBEI SUNRISE RUBBER PLASTIC TECHNOLOGY CO., LTD.
HEBEI SUNRISE RUBBER PLASTIC TECHNOLOGY CO., LTD.
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Rubber Gaskets

We produce a wide variety of Gaskets & Seals, ranging from basic washers and shims to specialized seals. Our high-quality solutions are created using a combination of production techniques and advanced machinery.


Company boasts an extensive inventory of over 1000 stock materials, including rubber and sponge sheeting, which can be rapidly converted using a range of precision cutting methods, including die cutting, digital CNC cutting, water jet cutting, and lathe cutting, all with swift turnaround times.


Utilizing state-of-the-art CNC equipment negates the requirement for tooling expenses and offers economical choices for prototyping.


We can assist in creating and cutting pieces of any size or shape based on your measurements, a drawing, or a sample you already have.


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Why Choose Our Rubber Gaskets?

Our team specializes in producing custom extruded gaskets and seals made of Thermoplastic rubber in different shapes and sizes. Utilizing advanced machinery and technology, our company efficiently manufactures high-quality thermoplastic rubber extrusion profiles at a low cost and in a short timeframe.


We specialize in producing a diverse array of bespoke extruded products, including gaskets, O-ring cord, tubing, and seals. Our custom-made in various industries, such as construction, automotive, healthcare, food processing


As a manufacturer specializing in custom extrusions, we ensure that our products meet your unique needs with reliable performance. We offer assistance in selecting and designing products, whether you are choosing a basic gasket or a sophisticated custom rubber profile.


Custom Rubber Gasket Manufacturing Process

Custom rubber gaskets play a critical role across industries, from automotive to aerospace, by providing dependable sealing solutions for various applications. Their production involves several precise steps to ensure top-notch quality and performance.


Design Phase  

The process begins with a detailed design phase. Engineers and designers work together to create precise specifications based on the gasket’s intended use. This step also involves selecting the ideal rubber material, such as EPDM, silicone, neoprene, or nitrile, depending on requirements like temperature tolerance, chemical resistance, and durability.


Material Preparation  

Once the design is ready, rubber sheets or rolls are cut into manageable pieces. This is carried out using methods like die-cutting, water jet cutting, or laser cutting, chosen based on the complexity and precision required.


Molding or Shaping  

The next step is molding the rubber pieces into shape. Techniques like compression molding, transfer molding, or injection molding are commonly used. The material is placed into a mold, heated, and pressurized to achieve the desired shape, then cooled and solidified.


Finishing Touches  

After molding, the gaskets go through finishing processes. This includes trimming excess material, inspecting for defects, and performing quality control tests to ensure they meet specifications.


Packaging and Delivery  

Finally, the custom gaskets are carefully packaged and shipped to customers. Quality control is maintained at every stage to ensure the final product meets the highest standards and is tailored precisely to the application.


Specifications of Rubber Gaskets

Specifications of 具体产品

1Product Name:Rubber gaskets
Other Name:EPDM Flange Gasket, Rubber Washer, Rubber Spacer, Antivibration Pad, Conductive Rubber Shim, Self-Adhesive Seal Pad, Pneumatic Gasket, Valve Cover Gasket, Fuel Tank Mounting Pad, Sensor Isolation Shim, IP68 Sealing Gasket, Thermal Conductive Pad, Battery Insulating Spacer, Flange Sealing Ring, Pump Water Stop Gasket, Chemical Tank Lining Sheet, Back-up Ring, Corrugated Gasket, Slotted Shim, Metal-Jacketed Gasket, FDA Silicone Gasket, FKM Oil-Resistant Gasket, Cryogenic EPDM Spacer, Halogen-Free FR Pad, Rubber Gasket Sheet, OEM Automotive Gasket Kit, High-Pressure Reinforced Gasket, Die-Cut Rubber gaskets





2Optional Materials








MaterialKey PropertiesWorking Temp.(°C)Hardness(Shore A)

Nitrile Rubber (NBR)Best cost-effective oil resistance; Strength increases with acrylonitrile content; Poor ozone resistance-30 to 12040–100

Ethylene Propylene Diene Monomer (EPDM)Best weathering/ozone resistance; Good steam/acid/alkali resistance; Poor oil resistance-50 to 15040–90

Fluorocarbon Rubber (FKM)Best high-temp & chemical resistance (e.g., acids/oils); Low elasticity, expensive-30 to 20050–90

Silicone Rubber (VMQ)Widest temp range, excellent insulation; Low strength, poor oil resistance-100 to 25020–80

Hydrogenated Nitrile Rubber (HNBR)Superior oil/heat resistance vs. NBR; Excellent mechanical strength-40 to 15050–90

Neoprene(CR)Flame retardant, good weathering/ozone resistance; Moderate oil resistance-40 to 12040–95










3Producing Technoly



3.1 Pression Rubber Molding












4Use Cases



Automotive Industry



Industrial Equipment and Machinery



Electronics and Electrical Appliances



Aerospace and Maritime



Daily Life and Personal Care



Healthcare and Food



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