Transfer Molded | Grey Seal
Grey EPDM Rubber Seal | Transfer Molded
- Industry: Material Handling Industry
- Product: Seal
- Process: Transfer Molded
- Material: Grey EPDM
Molded EPDM Rubber
Molded EPDM rubber is ideal for outdoor applications because of its ability to resist harsh weather conditions. Also recommended for its ability to stabilize color and resist heat. EPDM is an economical choice because it offers the advantages of neoprene, at a lower cost. EPDM is widely used in the automotive industry because it is ozone resistant, temperature resistant and has an attractive appearance.
We do not recommend the use of EPDM for applications that involve petroleum derivatives. Mineral oils and solvents can cause an adverse reaction when used with EPDM. EPDM is also not recommended as an electrical insulator.
Rubber Seal Products
Rubber seal products, rubber parts and gaskets are vital for preventing seepage of moisture or air. Qualiform is your source for custom manufactured rubber gaskets and rubber seals. No matter the application, we provide a comprehensive collection of commercial and specification grade elastomers to fabricate a variety of parts including:
- Rubber Gaskets
- Rubber Seals
- Rubber Washers
We have resources to assist you in the development of new designs. We can also help you select materials and processes. Our technical staff consider a variety of factors in the design process and we work to recommend the best method to meet your needs and your budget.
There are two separate stages in the life of a gasket or seal – the primary fit and function, and its ability to endure the environment to which it is exposed. Environmental factors to consider in gasket or seal application include:
- Flammability: UL specifications, heat resistance
- Function: the motion acting upon it
- Temperature extremes: heat, cold
- Weather: water, ozone, sunlight
- Impermeability: exposure to gases
- Organic materials: fungus resistance, odor, tastelessness
Transfer Molding Process
The rubber transfer molding process is ideal to produce both solid rubber parts, rubber part with inserts and parts that require bonding rubber to metal. Rubber transfer molding combines the advantages of injection molding with the ease of compression molding. Transfer molding is the ideal process for forming rubber products that require:
- Exact positioning
- Bonding rubber to fragile metal parts – such as wire
- Mold designs that contain multiple cavities and can trap air
- Intricate parts with lower volume requirements
Advantages of the Rubber Transfer Molding Process
Transfer molding offers several advantages over other methods by providing:
- Shorter production cycles
- Maintains closer dimensional tolerances than compression molding
- Provides uniformity
- Fast mold setup
- Economical process with high cavity count per mold per cycle
- Cost effective tooling
- Allows for rubber to metal bonding
- Allows for rubber overmolding
- Allows for design flexibility, sharp edges and intricate parts
