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Norman Stein & Associates has over 100 years of combined employee
experience. N.S.& A. knows rubber linings intimately and thereby is able to provide over 70 different linings, installation, and expert recommendations and advice about the perfect rubber lining for the customer. Norman Stein & Associates exclusively uses Polymeric Protective Linings' rubber. The rubber linings offered by Norman Stein & Associates and the advantages of the different rubber linings include:
Soft Natural Rubber - good resistance to most inorganic chemicals with the
exception of strong oxidizing agents. They exhibit outstanding abrasion resistance and will expand and contract with thermal variations of the metal substrate.
Semi-Hard and Hard Natural Rubber - Better chemical and heat resistance than soft natural rubber. Wide application in organic and inorganic acids and chlorine gas. Specific grades have excellent permeation resistance and heat resistance up to 200°F.
Triflex® - Three ply natural rubber linings (soft-hard-soft) that has excellent chemical and abrasion resistance. The semi-hard rubber center layer provides a
non-permeable barrier and the soft cushion allows maximum adhesion to steel.
Neoprene - A synthetic base elastomer with some physical properties similar to natural rubber. Superior to natural rubber in resistance to heat, ozone, sunlight, weather, flame, and oil.
Butyl - Good resistance to acids and caustic solutions up to 200°F. Exceptional resistance to gaseous diffusion. Recommended for applications that require ozone, sunlight, and aging resistance.
Chlorobutyl - Properties similar to butyl but easier to apply. Heat resistance good up to 200°F. Unaffected by cold weather or rapid temperature changes. Strongly recommended for super phosphoric acid and sodium hypochlorite.
Nitrile - Good resistance to greases, oils, petroleum, hydrocarbons, and other
non-polar solvents. Unaffected by rapid temperature changes and have good heat resistance to 200°F.
Hypalon* - A synthetic with good resistance to high concentrations of sulphuric and nitric acides. Also good heat, weather, ozone, and abrasion resistance.
EPDM(Ethylene Propylene Diene Monomer) - Similar to butyl plus good resistance to steam and oxygenated solvents such as acetone, methyl ethyln ketone, and ethyl acetate. Also has good resistance to sunligh, ozone, and heat.
Koroseal® PVC(Polyvinyl Chloride) - Highly resistant to strong corrosives including some which cannot be handled by rubber.
®Triflex is a registered trademark of Polymeric Protective Linings
®Koroseal is a registered trademark of Polymeric Protective Linings
*Hypalon is a registered trademark of E.I. DuPont de Nemours and Co., Inc.
The serviceability of any lining system depends largely on its adhesion to base metal. Norman Stein & Associates exclusively uses Polymeric Protective Linings' adhesives. These adhesives have good affinity for rubber along with the excellent ability to adhere firmly to steel. These adhesives are also used for natural and synthetic linings in the high temperature range. Depending on the type of cure, the rubber lining itself, rather than the bond becomes the limiting factor from a temperature standpoint.
Norman Stein & Associates offers the five steps in application:
1) Metal preparation - blasting
2) Adhesive application
3) Applying lining on to steel
4) Curing to achieve optimum chemical and physical properties
5) Final spark testing
Let Norman Stein & Associates help with rubber lining needs because Norman Stein & Associates has expertise, over 100 combined years of knowledge, and excellent and accommodating service.
See the Selection Guide for Rubber Linings
See the Chemical Resistance Chart for Rubber Linings
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