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Old 03-01-2013, 04:39 AM   #1
Senior Member
Join Date: Apr 2011
Location: Southwest Florida
Posts: 748
EPDM Roofing - No useful info to the RV owner, but interesting read to tech minded

... didn't realize how much of this stuff is out there.

EPDM is an elastomer that is comprised of ethylene, propylene and diene, hence the letters that make up its name. The M in its name comes from its ASTM classification, which indicates that it features a saturated chain of the propylene type.

Depending on the brand of EDPM, the rubber can contain between 45 and 75 percent ethylene content. The higher the ethylene content, the easier it is to mix and load the polymers during development.

Some of the benefits of using EPDM in a wide range of applications include:
- Excellent resistance to weather, heat and ozone
- Excellent resistance to polar conditions
- Excellent resistance to steam
- Excellent electrical properties
- Compatible with alkalis, hot and cold water, ketones and hydraulic fluids

EPDM is not satisfactory for use in areas where the following chemicals are stored or used:
- Gasoline
- Kerosene
- Oils
- Halogenated solvents
- Concentrated acids
-Aliphatic and aromatic hydrocarbons

EPDM is used in a huge number of applications, from the previously mentioned rooftop installation to the door seals on your automobile. Some other places where you can find
EPDM in use include:
- Electrical insulation
- Washing machine belts
- Mechanical goods that have rubber inserts
- Hoses and tubing
- Speaker cone surrounds
- Pond liners
- Plastic impact modification
- Radiators
- Seals and gaskets
- Automobile window, trunk and hood seals
- RV roofs

Posters Note: The climates we camp in fall somewhere between "steam" and "polar conditions", so we're OK there. And I'm not an expert on aliphatic and aromatic hydrocarbons; you'll have to ask someone else.

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Old 03-07-2013, 12:11 PM   #2
Senior Member
Join Date: Dec 2011
Posts: 428
I found your post to be very informative as it relates to the roof covering of our Eagle- I read somewhere on the web that several different combinations of the chemicals are cause for different maintenance procedures- I have a need to do some maintenance and repairs to our roof and I'm sure your info will prove helpful- THANX!! JMHO- DD
Fulltiming since July 1, 1999 currently with a 2005 GMC Sierra 3500 cc drw towing a 2007 Jayco Eagle 341RLQS
Diesel Donnie is offline   Reply With Quote

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