Polystyrene Round Stock | McMaster-Carr

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Material

Polystyrene

Rexolite Polystyrene

Shape

Rod

System of Measurement

Diameter

Length

Flexibility

Color

Hardness Rating

Hardness

Performance

Ultra Electrically Insulating

Tolerance Rating

Maximum Temperature

Comparable To

Texture

Environment

Tensile Strength

2,400 psi to 4,000 psi

9,000 psi

Food Industry Standard

FDA Compliant 21 CFR 177.1640

FDA Compliant 21 CFR 177.2710

Clarity

Density

DFARS Specialty Metals

Exempt

Dielectric Strength

500 V/mil

600 V/mil

Export Control Classification Number (ECCN)

EAR99

Flexural Modulus

220,000 psi to 270,000 psi

Not Rated

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

RoHS

REACH

14 Products

About Plastic

Compare over 25 types of plastic to find the right material for you.

Performance

High Strength

Our strongest plastic, with a tensile strength of 5,000 psi or higher

6 products

Easy Thermoform

Soften over a broad temperature range to shape into precise parts

8 products

Performance

Thermally Stable

Won't expand as temperatures rise

6 products

Chemical Resistant

Stay strong when exposed to harsh chemicals, such as hydrochloric acid

6 products

Easy-Thermoform Polystyrene Rods

Easy to thermoform, these rods are often molded into parts for displays and shelves.

	Dia. Tolerance	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Tensile Strength, psi	Impact Strength, ft·lbf/in	Flammability Rating	Food Industry Std.	Choose a Length, ft.		Per Ft.
White



	1/4"	0.000" to 0.1"	Extruded	-10	170	2,400 to 4,000	1.5	UL 94 HB	FDA Standard	8	8720K323	00000


	3/8"	0.000" to 0.1"	Extruded	-10	170	2,400 to 4,000	1.5	UL 94 HB	FDA Standard	8	8720K331	0000
	1/2"	0.000" to 0.1"	Extruded	-10	170	2,400 to 4,000	1.5	UL 94 HB	FDA Standard	8	8720K341	0000
	5/8"	0.000" to 0.1"	Extruded	-10	170	2,400 to 4,000	1.5	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	8720K35	0000
	3/4"	0.000" to 0.1"	Extruded	-10	170	2,400 to 4,000	1.5	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	8720K36	0000
	1"	0.000" to 0.1"	Extruded	-10	170	2,400 to 4,000	1.5	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	8720K37	00000
	1 1/2"	0.000" to 0.1"	Extruded	-10	170	2,400 to 4,000	1.5	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	8720K38	00000
	2"	0.000" to 0.1"	Extruded	-10	170	2,400 to 4,000	1.5	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	8720K39	00000

Ultra-Electrically-Insulating Rexolite Polystyrene Rods

These rods are made of a material known as Rexolite. They are electrically insulating and often used for cable connectors, electrical housings, and in microwave applications.

	Dia. Tolerance	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Tensile Strength, psi	Impact Strength, ft·lbf/in	Food Industry Std.	Choose a Length, ft.		Per Ft.
Off-White



	1/8"	-0.002" to 0.002"	Cast	-75	212	9,000	0.3	FDA Standard	1, 2, 4	1491T61	00000


	1/4"	-0.002" to 0.002"	Cast	-75	212	9,000	0.3	FDA Standard	1, 2, 4	1491T62	0000
	3/8"	-0.002" to 0.002"	Cast	-75	212	9,000	0.3	FDA Standard	1, 2, 4	1491T63	0000
	1/2"	-0.002" to 0.002"	Cast	-75	212	9,000	0.3	FDA Standard	1, 2, 4	1491T64	0000
	3/4"	-0.002" to 0.002"	Cast	-75	212	9,000	0.3	FDA Standard	1, 2, 4	1491T65	00000
	1"	-0.002" to 0.002"	Cast	-75	212	9,000	0.3	FDA Standard	1, 2, 4	1491T66	00000