Neoprene VS EPDM: Differences and Which Rubber Tape Is Right For You?

Sponge rubber like Neoprene and EPDM tape are some of the most common sponge tape materials used for sealing and securing objects like doors or windows. These materials are often confused with one another because they can appear quite similar. However, quite a few differences can affect their functionality or make them more or less suitable for certain applications. Let’s look at how these materials differ and how they are used. 

Neoprene rubber tape, also called chloroprene, is a type of elastomer. This flexible material is made from carbon, hydrogen, and chlorine polymer. The tape made from neoprene is a blend of sponges that has a closed-cell design. This material has great temperature resistance.

EPDM (Ethylene Propylene Diene Monomer) is a type of synthetic rubber. The rubber tape has a dense mass of tiny pores that are designed to seal out moisture, liquids, gas, oil, and air. 

These two products are made from very different materials but they do have quite a few similarities in terms of function and application. Here is a quick look at some of the main similarities between the two tapes. 

• Both are great for outdoor use since they both UV resistant and can handle cold to very warm temperatures in more harsh environments.
• Both are commonly used for sealing caravan doors and windows.
• Both materials are tough, durable and resilient against tearing or abrasions.
• The materials can tolerate a lot of pressure and will stay in good shape despite being compressed.

EPDM blocks electrical interference and can be used as an electrical insulator in engineering components.

• EPDM tends to be more affordable compared to Neoprene. 
• EPDM is much more soft compared to the more tough Neoprene, making it better for dealing irregular surface gaps. 
• EPDM can be more suitable for more outdoor applications.
• Neoprene has greater elongation, compression / deflection (bounce-back) and weatherability allowing it to be a bit more versatile in its uses.
• Neoprene is even used for marine sealing like hatches and ports.
• Neoprene has greater resistance to oil, gas, grease and is more flame resistant. 

Choosing between these two tape types comes down to where and how you will be using it as well as your budget.

For expert help in choosing the right rubber tape, browse Gardiner Australia’s foam selection online or contact our team for more information. We can advise you on the right material based on your needs and we can supply you with the highest quality rubber tape so you can firmly seal off or secure anything.