Material	Typical Properties	Specific Gravity	Tensile Strength, PSI	Impact Strength Ft-Lbs/In Notch	Hardness	Heat Distortion Temp. F	Dielectric Strength Volts/Mil	Flammability	Effect Of Acids	Effect Of Alkalis	Effect Of Organic Solvents
Acrylic	A tough, weatherable material with excellent optical properties at 1/3 the weight of glass. Shatter and chemical resistant, unequaled in many applications.	1.2	9,000	4	78 Rockwell M	200°	380-500	Slow Burning	Attacked by strong acids	None	Soluble in Aromatic and Chlorinated Hydrocarbons
ABS	A versatile rigid material with a wide selection of properties. Resistant to scuff, stain, and many chemicals. Available in a wide range of colors with a pleasant surface luster.	1.02-1.06	5,000-8,000	3-9	100-120 Rockwell R	196°	360	Slow Burning Fire Retardant Grades Self Extinguishing	Some Oxidizing Acids may attack	None	Soluble in Esters, Keystones, and Ethylene Dichloride
Polystyrene	A wide range of physical properties with low moisture absorption, this rigid material has excellent resistance to Alkalies and weak acids. Heat and UV grades available.	1.04-1.06	2,600-6,100	45-1.2	12-72 Rockwell M	163°	400-575	Slow with fire retardant grades available	Attacked by strong oxidizing acids	None	Soluble in Aromatic and Chlorinated Hydro Carbons
Polyethylene	Available in varying degrees of rigidity, and toughness. Resistant to most acids, alkalies, and solvents. A good moisture barrier and has excellent electrical properties.	.92-.96	1,800-4,200		46-63	194°-266°	450-580	Slow to self extinguishing	Slowly effected by strong oxidizing acids	Resistant	Resistant at lower temperatures
Flexible Polyvinyl Chloride	A versatile material ranging from soft to semi-rigid. Available in a broad spectrum of colors, it withstands abrasions, weather and most chemicals very well.	1.2-1.4	1,000-2,800		60-95 Shore A		500-900	Slow to self extinguishing	None to slight	None	Swells or soluble in Esters, Aromatic Hydro Carbons, and Keystones
Rigid Polyvinyl Chloride	Excellent all-around rigid material, offering a wide range of properties including high-tensile and impact strength, resistant to most chemicals and abrasion.	1.3-1.5	5,000-9,000	8-15	20-83 Shore D	150°-163°	1,000	Self-Extinguishing	None to slight	None	Swells or soluble in Esters, Aromatic Hydro Carbons, and Keystones
Polycarbonate	A high impact strength over a wide temperature range. Several grades available to meet F.D.A., N.S.F., A.S.T.M., U.L. guidelines. A stain resistant high gloss surface in a variety of colors.	1.2	8,000-9,000	12-16	115 Rockwell R	280°	380	Self-Extinguishing	Attacked by strong acids	Attacked	Soluble in aromatic and Chlorinated Hydrocarbons
Cellulose Acetate Butyrate	A tough, strong material that is characterized by a high gloss and depth of color. It has good dielectric strength and is available in formulas that exhibit good weatherability.	1.2	4,500	3.1	87 Rockwell R	135°	250-400	Slow Burning	Attacked	Attacked	Soluble in Keystones and Esters-Softened by Alcohol
Polyurethane	A very tough material, going from flexible to semi-rigid. Resistant to abrasion, gasoline, most solvents, and has excellent low temperature characteristics.	1.20	4,000-8,000		75 A-75D Shore	140°-190°	500	Slow to self extinguishing	Attacked	Attacked	Resistant to most Aliphalic solvents
Nylon	A rigid material noted for its excellent wear and abrasion resistance. It also withstands most Alkalies, organic chemicals and can be recommended over broad temperature range.	1.14	9,000-12,000	.9-3.5	107-118 Rockwell R	330°-380°	500	Self Extinguishing	Good to a PH5	Good to a PH11	Resistant to most Organic Solvents