Custom Molded Rubber Solutions
SJK Seal is an industry-leading rubber molding manufacturer of custom rubber seals. We design, develop and produce a wide range of custom molded rubber products, including gaskets, diaphragms and seals. Our high-performance products provide reliable and cost-effective professional solutions for customers around the world.
With over 25 years of successful component design and development, our custom rubber moldings have been used in countless applications for professional and harsh environments. For fail-safe custom molded rubber products, SJK Seal is your preferred custom rubber molding supplier.
SJK Seal Custom Molded Rubber Products
Our technicians use the latest polymer and process technologies to develop the best custom molded rubber products, providing you with solutions that balance quality, performance and cost.
Our rubber manufacturing facilities are capable of handling a wide range of custom rubber moldings, from one-off prototypes to high-volume production. Depending on geometry and material requirements, we can quickly deliver new tools and first samples within 7 days.
Producing Custom Rubber Molds
As a leading rubber mold manufacturer, SJK Seal excels in providing customers with precision rubber solutions that meet their needs. We serve a variety of industries, and our custom rubber mold solutions include:
Custom Rubber Seals
• Soft-seal PTFE rubber bonded butterfly valve seals.
• Downhole packers and pipe-in-pipe waterstop seals.
• PTFE protective manhole cover seals.
• Formula 1 powertrain and KERS seals.
• Glove box and window seals for nuclear industry applications.
• Chemical processing seals.
Custom Rubber Diaphragms
• High-performance PTFE rubber bonded diaphragms.
• Specialty valve diaphragms for self-contained breathing apparatus.
• Fabric reinforced diaphragms.
• Thin-walled diaphragms with precise flex characteristics.
Custom Rubber Gaskets
• PTFE protective gaskets for chemical processing applications.
• Chlorine electrolyzer gaskets.
• FDA gaskets for food processing applications.
• Gaskets for chemical processing.
Custom Rubber Molds
• Dessert molds for candy depositing lines.
• RGD resistant molds for oil and gas applications.
• Rubber-to-metal bonded products.
• Technical foam and sponge conversions.
Replacement custom rubber moldings
• Precision rubber-to-metal bonded valve components.
• Precision ground rubber rollers.
• Cast polyurethane bellows.
• AV mounts.