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EPDM can be compounded to meet specific properties to a limit, depending first on the EPDM polymers available, then the processing and curing method(s) employed. EPDMs are available in various molecular weights (indicated in Mooney viscosity ML(1+4) at 125 °C), varying levels of ethylene, third monomer, and oil content.
The finished roof's thickness is usually between 30 and 120 mils (thousandths of an inch; 0.75 mm to 1.50 mm). The most commonly used cured elastomer membranes are ethylene propylene diene monomer (commonly EPDM) and neoprene, although all thermoset products combined fail to account for more than 10% of all commercial roofing. This is in part ...
Membrane roofing consists of large sheets, generally fused in some way at the joints to form a continuous surface. Cured Thermoset membrane (e.g. EPDM rubber, Neoprene). Synthetic rubber Cured Thermosets are synthetic rubbers that have undergone the vulcanization or "Curing" process. Seams of materials are bonded by adhesives or chemicals ...
The fleece improves puncture and tear resistance considerably; 1.1-millimetre (45-mil) EPDM with a fleece backing is 180% stronger than 1.5-millimetre (60-mil) bare EPDM. Fleece-backed EPDM has a tear strength of 39.9 kN/m (228 lbf/in) compared to 13.1 kN/m (75 lbf/in) of that without the fleece reinforcement, more than 3 times the strength of ...
Common elastomers include ethylene propylene rubber (EPR), EPDM (EP-diene rubber), ethylene-octene (EO), ethylbenzene (EB), and styrene ethylene butadiene styrene (SEBS). ). Currently there are a great variety of commercially available rubbers and B
Thin, removable transparent film is added to the base of rolled roofing during manufacturing on all torch-on products. This stops the felt from sticking to the mineral layer when rolled up during the packaging process. A similar removable membrane on self-adhesive rolled roofing separates the adhesive from the mineral layer.