What happens to EPDM at high temperatures?

EPDM. Synthetic rubber, ethylene-propylene-diene monomer (EPDM), is a copolymer of ethylene, propylene and diene monomers. This synthetic high-temperature-resistant rubber offers excellent heat resistance, performing optimally up to +150°C. It also delivers excellent tear, abrasion, steam and compression set resistance ...

What temperature can EPDM withstand?

When compared with silicone rubber, EPDM is significantly inferior with a maximum temperature of 130°C (266°F).

What kind of rubber can withstand heat?

Silicone rubber, unlike the majority of other rubbers, can withstand extreme temperatures way above 200°C and down to as low as -60°C without deforming.

Does EPDM get hot?

EPDM - excellent heat and steam resistance for o-rings

Ethylene propylene rubber has a temperature range of -50°C to +120°/150°C (-60°F to +250°/300°F), depending on the curing system.

Does EPDM shrink or expand?

Despite its durability compared to other rubbers, EPDM naturally shrinks over time—several factors can speed up EPDM shrinkage. EPDM is a commonly used because it is capable of protecting more vulnerable roofing materials.

HVAC Tech Tip #5: High Temperatures and EPDM Belts

What is the difference between Viton and EPDM?

Viton® rubber is a fluoro elastomer, whereas epdm rubber is ethylene-propylene-diene-monomer. The primary differences between Viton® and EPDM is in their chemical resistance and temperature ranges. Both have different properties and applications for general industrial use.

Is EPDM a silicone?

Both EPDM and silicone are synthetic rubbers, but their key differences are in the width of their applications: silicone is better for more general uses, while EPDM is geared toward more specific purposes. Both rubbers have electricity, weather, ozone, and UV resistance, as well as good bonding with metal.

How long does EPDM rubber last?

An EPDM rubber roof is incredibly long-lasting and durable. The rubber recycled and used for the synthetic rubber membrane isn't damaged under the sun's UV or ultraviolet rays. If installed correctly, you can expect a rubber roof to in excess of up to 50 years.

Is EPDM UV stable?

After more than two decades of field exposure in different climatic conditions, samples collected of EPDM membrane show no evidence of crazing or cracking. As a result of the excellent UV resistance, EPDM membrane can be warranted up to 30 years.

Does EPDM rubber absorb water?

EPDM compounds have a very low absorption to water. These compounds work well as a barrier to water vapors. However, EPDM will absorb oil and gas, therefore it is not an efficient overall barrier.

What causes EPDM to swell?

EPDM is a hydrocarbon polymer, which swells excessively in hydrocarbon fluids such as mineral oils and hydrocarbon fuels, because of lack of polar groups in the polymer chain.

Does EPDM burn?

However, EPDM is a flammable material with a very low limiting oxygen index (LOI) value, which greatly limits its further development and application [1]. Therefore, it is necessary to improve the flame retardant performance of EPDM [2,3,4].

What does oil do to EPDM?

EPDM has an excellent mechanical properties and very wide temperature range: from -50°C up to +150°C (hot steam up to +180°C). Due to very saturated structure EPDM has a very good ozone, weather and ageing resistance. Mineral oils and lubricants, as well as organic oils and adipose, causes severe swelling.

Does rubber melt in heat?

At 1,112 degrees Fahrenheit (600 degrees Celsius), the gases are hot enough to melt the new rubber almost immediately, which results in cleaner separation of the melted rubber from gases and other aggregates.

Can rubber be molten?

Rubber begins to melt at approximately 180 °C (356 °F).

How do you melt rubber without burning it?

Use any liquid with a higher density than rubber and with a high boiling point. For example, you can use heavy oils. Pour the shredded rubber into the liquid. Heat the liquid until it reaches between 750 and 1,000 degrees Fahrenheit.

Is EPDM the same as Teflon?

EPDM is softer and performs better as a sealing material (it conforms better to rough surface finishes). Teflon is stiffer and slicker, therefore it may perform better in a dynamic or abrasive application. Both could care less about sea water in terms of chemical assault or corrosion.

Is EPDM the same as Neoprene?

EPDM and Neoprene are general purpose synthetic rubbers mostly differing in cost and a few key properties. While EPDM is cheaper, noise resistant, and a good electrical insulator, neoprene is a thermal insulator resistant to chemicals, oil, and fire.

Does EPDM shrink when heated?

illustrate that EPDM gradually shrinks as the temperature increases and sees severe deformity at about 125° C, (257° F).

What are common problems with EPDM roofs?

Can you double layer EPDM?

For flat roofs, materials such as EPDM and TPO are usually approved for use up to two layers.