The History of EPDM and its Reputation
EPDM rubber is used in vibrators and seals; glass-run channels; radiators, garden and appliance hoses; tubing; washers; belts; electrical insulation, and speaker cone surrounds. It is also used as a medium for water resistance in high-voltage polymeric cable jointing installations, roofing membrane, geomembranes, rubber mechanical goods, plastic impact modification, thermoplastic, vulcanizates, as a motor oil additive, pond liners, electrical cable-jointing, and RV roofs.
The main properties of EPDM rubber are its outstanding heat, ozone and weather resistance. The resistance to polar substances and steam are also good. It has excellent electrical properties, and has the ability to retain light color.
Liquid Rubber is designed to recoat structurally sound existing roof and protective materials. They should not be used in place of roofing membranes.
EPDM is excellent for both new construction and roof replacement. It is capable of withstanding temperature variations from -62 degrees F to 300 degrees F without cracking or deteriorating. EPDM offers high tensile strength, extreme elongation capabilities, and is generally compatible with other materials used in most roofing applications.
EPDM Rubber has had a long history of superior performance in hoses, molded products, tires and roofing membranes. For example, the radiator hoses in our cars and the gaskets on our freezer doors are made of EPDM rubber and show the broad temperature range the product can handle. EPDM Roofing Membranes also have more than 30 years of successful history. EPDM is relatively inexpensive, simple to install, and fairly clean to work with when compared to conventional materials, without the strong odors and fumes. The product is very stable and the resulting characteristics of Liquid EPDM include flexibility, weather ability and chemical resistance. Liquid Roof therefore, can be described as a new form of an old and well-established rubber polymer. Now you can take advantage of the same benefits to weather-tight your leaks. Liquid Roof forms a 100% seamless layer. No other product can match the durability of EPDM Liquid Roof. EPDM Rubber is essentially immune to the effects of ultraviolet and ozone and is one of the best water barriers known. EPDM rubber also has the broadest temperature tolerance, and is not water-soluble even in the uncured state. Liquid Rubber is the perfect choice for repairing or coating your Metal Roof. Even if you happen to get an unexpected rain shower just after you applied Liquid Roof there’s no need to worry; Liquid EPDM Roof will not wash off.
Liquid EPDM Rubber vs. Neoprene Rubber
EPDM rubber has only been available in liquid form for a relatively short time, so Liquid Neoprene rubber became the material of choice for protecting concrete against both fresh and salt water. The Liquid Neoprene products are simple solvent solutions or water based emulsions and therefore have low solids content and relatively low molecular weights. These limitations made multiple coat applications necessary and required top coating with other polymers to prevent ultra violet degradation.
The development of Liquid EPDM Rubber resulted in a high solids, two components chemically reactive product capable of polymerizing at ambient temperatures (55 F (13 C) and higher). This product can be applied at a 30 mil dry film (.76 mm) in a single application because of the high solids content. Its chemical cure feature then results in a high molecular weight film with protective and performance properties exceeding those of liquid applied Neoprene films.
Liquid EPDM Rubber can withstand boiling water or live steam and is inherently UV and ozone stable. The product is safer to use because of its higher flash point and the two component packaging permits extended storage at higher temperatures than liquid Neoprene. The non-polar characteristic of the EPDM also gives it advantages over Neoprene in saltwater environments as well as better resistance to cathodic disbondment. EPDM rubber has poor resistance to oils, fats, waxes and aliphatic solvents but possesses very good resistance to ketone solvents, alcohol, polar compounds, Salts, most acids up to 50 % concentration, alkalies and water. Liquid EPDM Rubber is best for repairing roofs. Liquid EPDM increases the life of your roof.