Cast Acrylic Rods | McMaster-Carr

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Performance

Highly Electrical Insulating

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Comparable To

Environment

Fabrication

For Use With

Sodium Hydroxide (Caustic Soda)

Sodium Hypochlorite (Bleach)

Light Transmission

Hardness Rating

For Use Outdoors

Flexural Modulus

430,000 psi to 490,000 psi

450,000 psi to 470,000 psi

Tolerance Rating

Relative Length

Dielectric Strength

400 V/mil to 500 V/mil

430 V/mil

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

Yes

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

RoHS

Compliant

Impact Strength

0.04 ft·lbf/in

0.3 ft·lbf/in to 0.4 ft·lbf/in

Minimum Temperature

97 Products

About Plastic

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

Performance

Machinable

Cut the smoothest finishes in the fastest time

59 products

Low Friction

Prevent parts from scraping, slowing down, or overheating due to friction

22 products

Performance

Easy Thermoform

Soften over a broad temperature range to shape into precise parts

81 products

UV Resistant

Resist discoloring and degrading in the sun

81 products

Clear Machinable Cast Acrylic Rods

Widely used to make sight windows and light fixture lenses, these cast acrylic rods and discs maintain clarity over time. The material is scratch resistant and stands up to outdoor use better than polycarbonate. It maintains clarity over time and won't weaken from exposure to UV, though the pigment in colored acrylic will fade over time when exposed to direct sunlight. Comparable to Lucite and Plexiglas® acrylic, cast acrylic is easier to machine than extruded acrylic.

Long Rods

Image of Product. Front orientation. Plastic. Clear Machinable Cast Acrylic Rods.

Dia.	Dia. Tolerance	Temp., ° F	Flammability Rating	Food Industry Std.	Choose a Length, ft.	Choose a Color		Per Ft.
3/8"	-0.005" to 0.005"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K62	00000
1/2"	-0.005" to 0.005"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K32	0000
5/8"	-0.010" to 0.010"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K51	0000
3/4"	-0.010" to 0.010"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K33	00000
3/4"	-0.010" to 0.050"	0 to 180	UL 94 HB	—	1, 2, 3, 4	Clear Fluorescent Amber, Clear Fluorescent Blue, Clear Fluorescent Green, Clear Fluorescent Red	84925K21	00000
7/8"	-0.010" to 0.010"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K52	00000
1"	-0.010" to 0.010"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K34	00000
1"	-0.010" to 0.050"	0 to 180	UL 94 HB	—	1, 2, 3, 4	Clear Fluorescent Amber, Clear Fluorescent Blue, Clear Fluorescent Green, Clear Fluorescent Red	84925K31	00000
1 1/4"	-0.015" to 0.015"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K53	00000
1 1/2"	-0.015" to 0.015"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K36	00000
1 1/2"	-0.010" to 0.050"	0 to 180	UL 94 HB	—	1, 2, 3, 4	Clear Fluorescent Amber, Clear Fluorescent Blue, Clear Fluorescent Green, Clear Fluorescent Red	84925K41	00000
1 3/4"	-0.015" to 0.015"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K54	00000
2"	-0.015" to 0.015"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6, 7, 8	Clear	8528K38	00000
2"	-0.010" to 0.050"	0 to 180	UL 94 HB	—	1, 2, 3, 4	Clear Fluorescent Amber, Clear Fluorescent Blue, Clear Fluorescent Green, Clear Fluorescent Red	84925K51	000000
2 1/2"	-0.030" to 0.030"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6	Clear	8528K41	00000
2 1/2"	-0.010" to 0.050"	0 to 180	UL 94 HB	—	1, 2, 3, 4	Clear Fluorescent Amber, Clear Fluorescent Blue, Clear Fluorescent Green, Clear Fluorescent Red	84925K61	000000
3"	-0.030" to 0.030"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5, 6	Clear	8528K43	000000
3 1/2"	-0.045" to 0.045"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5	Clear	8528K45	000000
4"	-0.045" to 0.045"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5	Clear	8528K47	000000
4 1/2"	-0.045" to 0.045"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5	Clear	8528K55	000000
5"	-0.045" to 0.045"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5	Clear	8528K49	000000
5 1/2"	-0.045" to 0.045"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5	Clear	8528K56	000000
6"	-0.045" to 0.045"	0 to 150	UL 94 HB	FDA Standard	1, 2, 3, 4, 5	Clear	8528K57	000000

Short Rods and Discs

	Dia. Tolerance	Temp., ° F	Color	Flammability Rating	Food Industry Std.		Each
1/8" Long



	1"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T71	00000


	2"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T13	0000
	3"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T15	0000
	4"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T17	00000
	5"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T75	00000
	6"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T19	00000


	1/4" Long



			1"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T81	0000


			2"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T23	0000
			3"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T25	00000
			4"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T27	00000
			5"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T85	00000
			6"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T29	00000


			1/2" Long



					1"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T91	00000


					2"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T33	00000
					3"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T35	00000
					4"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T37	00000
					5"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T95	00000
					6"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T39	00000


					1" Long



							1"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T61	00000


							2"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T62	00000
							3"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T63	00000
							4"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T64	00000
							5"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T65	00000
							6"	-0.125" to 0.125"	-40 to 180	Clear	—	—	1221T66	00000


							2" Long



									2"	-0.015" to 0.015"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K41	00000


									3"	-0.030" to 0.030"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K411	00000
									4"	-0.045" to 0.045"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K412	00000
6"									-0.045" to 0.045"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K413	000000


4" Long



									2"	-0.015" to 0.015"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K42	00000


									3"	-0.030" to 0.030"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K421	00000
									4"	-0.045" to 0.045"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K422	000000
									6"	-0.045" to 0.045"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K423	000000


	6" Long



									2"	-0.015" to 0.015"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K43	00000


									3"	-0.030" to 0.030"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K431	00000
									4"	-0.045" to 0.045"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K432	000000
									6"	-0.045" to 0.045"	0 to 150	Clear	UL 94 HB	FDA Standard	8581K433	000000

Clear Scratch- and UV-Resistant Acrylic Rods

Use these scratch- and UV-resistant acrylic rods and discs for sight windows, meter faces, and signs. They’re made of extruded acrylic, which is less expensive than cast acrylic with nearly the same performance. They’ll stand up to outdoor use better than polycarbonate and maintain clarity over time.

Long Rods

Image of Product. Front orientation. Plastic. Clear Scratch- and UV-Resistant Acrylic Rods.

	Dia. Tolerance	Lg., ft.	Fabrication	Min. Temp., ° F	Max. Temp., ° F	Flammability Rating		Each
Clear



	1/8"	-0.005" to 0.005"	6	Extruded	-40	180	UL 94 HB	8531K11	00000


	3/16"	-0.007" to 0.007"	6	Extruded	-40	180	UL 94 HB	8531K12	0000
	1/4"	-0.010" to 0.010"	6	Extruded	-40	180	UL 94 HB	8531K13	0000
	5/16"	-0.010" to 0.010"	6	Extruded	-40	180	UL 94 HB	8531K14	0000
	3/8"	-0.010" to 0.010"	6	Extruded	-40	180	UL 94 HB	8531K15	0000
	1/2"	-0.012" to 0.012"	6	Extruded	-40	180	UL 94 HB	8531K17	0000
	5/8"	-0.015" to 0.015"	6	Extruded	-40	180	UL 94 HB	8531K19	00000
	3/4"	-0.025" to 0.025"	6	Extruded	-40	180	UL 94 HB	8531K21	00000
	1"	-0.030" to 0.030"	6	Extruded	-40	180	UL 94 HB	8531K23	00000
	1 1/4"	-0.035" to 0.035"	6	Extruded	-40	180	UL 94 HB	8531K25	00000
	1 1/2"	-0.040" to 0.040"	6	Extruded	-40	180	UL 94 HB	8531K37	00000


	2"	-0.050" to 0.050"	6	Extruded	-40	180	UL 94 HB	8531K41	000000

Short Rods and Discs

The _1/8” and _1/4” lengths are cut from sheets for a clear, smooth face.

						1/8" Long		1/4" Long
	Dia.	Dia. Tolerance	Fabrication	Temp., ° F	Flammability Rating		Each		Each
Clear



		2"	-0.031" to 0.031"	Extruded	32 to 160	UL 94 HB	8581K22	00000	8581K33	00000


		3"	-0.031" to 0.031"	Extruded	32 to 160	UL 94 HB	8581K23	0000	8581K34	0000
		4"	-0.031" to 0.031"	Extruded	32 to 160	UL 94 HB	8581K24	0000	8581K35	0000
		6"	-0.031" to 0.031"	Extruded	32 to 160	UL 94 HB	8581K26	0000	8581K37	00000
		7"	-0.031" to 0.031"	Extruded	32 to 160	UL 94 HB	———	0	8581K38	00000
		8"	-0.031" to 0.031"	Extruded	32 to 160	UL 94 HB	———	0	8581K39	00000

Mirrored Acrylic Discs

A lightweight alternative to mirrored glass, these mirrored acrylic discs resist scuffs and scratches. One side is coated with aluminum for a highly reflective finish.

					1/8" Long		1/4" Long
	Dia.	Dia. Tolerance	Fabrication	Temp., ° F		Each		Each
Plain Backing



		3"	-0.063" to 0.063"	Extruded	-40 to 160	1516T11	00000	1516T15	000000


		6"	-0.063" to 0.063"	Extruded	-40 to 160	1516T12	00000	1516T16	00000
		9"	-0.063" to 0.063"	Extruded	-40 to 160	1516T13	00000	1516T17	00000
		12"	-0.063" to 0.063"	Extruded	-40 to 160	1516T14	00000	1516T18	00000


		Adhesive Backing



				3"	-0.063" to 0.063"	Extruded	-40 to 160	1516T31	00000	1516T35	00000


				6"	-0.063" to 0.063"	Extruded	-40 to 160	1516T32	00000	1516T36	00000
				9"	-0.063" to 0.063"	Extruded	-40 to 160	1516T33	00000	1516T37	00000
				12"	-0.063" to 0.063"	Extruded	-40 to 160	1516T34	00000	1516T38	00000