EPDM Rubber Mouldings
Advanced Seals & Gaskets provide various rubber moulded components produced from numerous rubbers, one such material being EPDM rubber. A rubber moulding requires specialist machinery and processes (compression, transfer or injection moulding) as they are generally bespoke shapes, with complex profiles, have a ribbed finish or may require a lip or curved edge - for these reasons EPDM rubber mouldings can not simply be pressed from sheet material.
EPDM rubber mouldings can take many forms for example feet, buffers sleeps and o-rings to name a few, all designed to provide protection, prevent the leakage or ingress of air, fluid or gas and to be aesthetically pleasing. All our EPDM rubber mouldings are made to order and are produced using dimensions, samples or drawings provided by customers, from which a tool or moulded cavity is made.
EPDM rubber mouldings are preferred in outdoor applications where there is exposure to chemicals, water, UV, weathering and Ozone.
What are EPDM Rubber Mouldings?
Rubber moulding is the procedure by which raw material, in this case, EPDM rubber, is turned into a specific shape and usable product using 1 of 3 processes (compression/transfer/injection moulding), in some cases, such as with the production of o-rings, the cord is produced by way of extrusion and joined manually to form the ring.
EPDM rubber mouldings can be made in solid or hollow forms, to suit individual applications, with each part perfectly formed and identical every time thanks to the manufacturing process. The types of EPDM mouldings available are endless as they can be used in practically every industry, some examples of EPDM rubber mouldings include rubber sleeves, rubber bellows (coverings), rubber feet, buffers and parts for sports equipment.
For information on EPDM Rubber Mouldings please complete the following quick enquiry or call us on +44(0)1384 252555.
Product Specification & Key Characteristics
- Colour: Black, White/Blue (FDA)
- Grade: High Temperature, WRAS Approved, Commercial, FDA
- Density: 40 – 90 Shore Hardness
- Resistances: UV, O Zone, Water
- Temperature Range: 150°C to -500°C
- Thickness: Any thickness is available on custom made mouldings
Full technical data can be supplied upon request,
or downloaded from our online portal.
Help and guidance
If you would like to speak to a representative to discuss your specific application or requirements please call our sales office direct on 01384 469100, alternatively you can send an E-mail. Simply click on the link and forward us your details along with your question and we will contact you immediately.
Samples - Technical EPDM Rubber Mouldings
Samples can be submitted for testing upon request.
Call now for sample requests or further help.
Rubber mouldings are in a choice of materials including EPDM, neoprene, nitrile, silicone and Viton. Although the manufacturing process is the same, each material has its own unique properties suited to different applications. If you need help choosing the material or type of extruded profile you need, please give a member of our sales team a call who will be happy to discuss the available options.
Why use EPDM Rubber Mouldings?
Rubber mouldings are ideal for customers who are looking for a non-standard profile to fit specific applications, the process of producing a moulded part means the customer is guaranteed to have an identical product each time, which is essential for high volume production and assembly.
By extruding the material, end-users have the benefit of a perfectly fitting moulded rubber profile combined with the properties of the EPDM material. EPDM rubber has an operating temperature range of -30°C to + 110°C and is resistant to environmental extremes such as UV rays, O-zone and weather making this a good material for both internal and external applications.
EPDM rubber mouldings are commonly applied to industrial applications that require sealing and have an endless list of uses from sleeves, feet, bellows and edge trims. EPDM rubber is available in a number of hardnesses and grades, all of which can be moulded to form a profile of your choice.
Benefits of EPDM Rubber Mouldings
- Ozone and Weather Resistant
- Variety of Grades
- Resistance to Fine Particles
- Can be made to bespoke designs
- Created an air and water tight seal
There three main processes that are used in the process of EPDM rubber moulding.
Injection moulding is the process by which raw/uncured EPDM material is loaded into a hopper or holding unit where it is heated to a molten state and then fed through a nozzle in pre-measured quantities into the mould/cavity. Pressure and heat levels are adjusted within the cavity-causing the material to ‘cure’ and the moulded product is formed.
Compression moulding is made up of a top and bottom pre-heated steel mould/cavity into which raw material is poured in and the two halves are closed together. This tool is heated in order to melt the neoprene compound creating the desired shape and the final product. Although this process is great for bespoke moulding, it can be very time consuming for high volume production.
The transfer moulding process is the more complex of the three. The raw/uncured material or charge is loaded into the transfer pot, this pot is then heated as a plunger slowly enters the pot building pressure, forcing the melted rubber through the sprue or channel. The sprue leads to the mould cavity, this cavity is then filled with the melted rubber material forming the desired shape of the component. Once the raw material has cured, the moulding tool can be opened and the formed part removed.
Advanced Seals & Gaskets work with many material manufacturers and suppliers, giving our customers more choice when designing their EPDM rubber moulding, other grades available include:
FDA grades - Food quality EPDM is available in blue and white options. This synthetic material is suitable for use in food and pharmaceutical processing applications. Food quality EPDM offers good resistance to animal and vegetable oils, is non-toxic and has a working temperature of -25°C up to +140°C.
WRAS approved EPDM rubber sheeting is suitable for use in potable water applications (water for human consumption) The material is resistant to weathering, ozone, ageing and chemicals and meets standards BS 6920-1:2000 and BS 6920-1:2014. WRAS approved EPDM has a working temperature of -40°C up to +120°C.
Peroxide Cured - Vulcanising or curing EPDM using peroxide (as opposed to Sulphur) produces a more superior material with higher temperature resistance, heat resistance and improved oil and chemical resistance, this material is suitable for demanding applications such as nuclear facilities.
Please get in touch if you are unsure which grade of EPDM or type of moulding you require for your application, samples of our materials are readily available for your perusal.
Please contact us using the form below or by calling us on +44(0)1384 252555.