Clear Group 2: 3/8″ – 1 7/8″ Diameter

Busada 200® Group II plastic tubing is stocked in 6-foot lengths and is manufactured under the same rigidly controlled processing conditions as our Group I plastics tubing. For non-stock custom extruded sizes call 1-540-967-2882.

Group II CAB (butyrate) tubing is sold in 6′ lengths with the minimum order of 1 stick.

A heavy-walled, small diameter butyrate tube with exceptional clarity

Group 2 Tubing Sizes

Wall Thickness: 1/16" | 1.6mm
Part # OD X ID (IN) OD X ID (MM)
2T1006 3/8 X 1/4 9.5 X 6.3
2T1008 1/2 X 3/8 12 X 9.5
2T1010 5/8 X 1/2 15.8 X 12.7
2T1011 3/4 X 5/8 19 X 15.8
2T1014 7/8 X 3/4 22.2 X 19.1
2T1016 1 X 7/8 25.4 X 22.2
2T1018 1-1/8 X 1 28.6 X 25.4
2T1020 1-1/4 X 1-1/8 31.8 X 28.6
2T1022 1-3/8 X 1-1/4 34.9 X 31.8
2T1024 1-1/2 X 1-3/8 38.1 X 34.9
2T1026 1-5/8 X 1-1/2 41.3 X 38.1
2T1032 2 X 1-7/8 50.8 X 47.6
2T1044 2-3/4 X 2-5/8 69.9 X 66.7
Wall Thickness: 1/8" | 3.2mm
Part # OD X ID (IN) OD X ID (MM)
2T2008 1/2 X 1/4 12.7 X 6.4
2T2010 5/8 X 3/8 15.9 X 9.5
2T2012 3/4 X 1/2 19.1 X 12.7
2T2016 1 X 3/4 25.4 X 19.1
2T2018 1-1/8 X 7/8 28.6 X 22.2
2T2020 1-1/4 X 1 31.8 X 25.4
2T2032 2 X 1-3/4 50.8 X 44.5
2T2036 2-1/4 X 2 57.2 X 50.8
2T2056 3-1/2 X 3-1/4 88.9 X 82.6
Wall Thickness: 3/16" | 4.75mm
Part # OD X ID (IN) OD X ID (MM)
2T3008 1/2 X 3/8 12.7 X 9.5
2T3010 5/8 X 1/4 15.9 X 6.4
2T3012 3/4 X 3/8 19.1 X 9.5
2T3016 1 X 5/8 25.4 X 15.9
2T3020 1-1/4 X 7/8 31.8 X 22.2
2T3032 2 X 1-5/8 50.8 X 41.3
2T3036 2-1/8 X 1-3/4 54 X 44.5
2T3038 2-3/8 X 2 60.3 X 50.8
2T3040 2-1/2 X 2-1/8 63.5 X 54
2T3042 2-5/8 X 2-1/4 66.7 X 57.2
2T3044 2-3/4 X 2-3/8 69.9 X 60.3
2T3046 2-7/8X 2-1/2 73 X 63.5
2T3048 3 X 2-5/8 76.2 X 66.7
2T3056 3-1/2 X 3-1/8 88.9 X 79.4
The display tube protecting the cannonball clock weights installed in Monticello.

Busada 200®CAB rigid plastics tubing is remarkably resistant to physical, environmental, and chemical assault. It meets optimum specifications from impact strength and physical stress. Extruded from the most weather-resistant butyrate compound, it contains additives inhibitors that resist natural and artificial UV radiation. Extensive testing has established that Busada 200® tubing retains its full complement of characteristics – strength, clarity, versatility, interior smoothness – for prolonged periods of exposure to adverse conditions, including many chemicals and reagents. See our spec. sheets on our documents page.

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A new butyrate bend over the broken and yellowed acrylic bend it's replacing

Anyone who has used a screwdriver handle to pound in a nail would have first-hand experience with the durability of Tenite™. Though Tenite™ has been used to produce products such as tool handles, toothbrushes, designer sunglasses, and other fashionable items, it remains the go-to material for safe and long-lasting use because of its excellent heat, chemical, and impact resistance.

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Cellulose Acetate Butyrate (CAB) offers superior weatherability characteristics for clear rigid tubing and pipe. With an effective phenyl o-hydroxybenzoate weathering agent, cellulose ester plastics are less susceptible to quinone formation. The ultraviolet inhibitors in the CAB compound are engineered to prevent yellowing, crazing, cracking, and disintegration when used outdoors. While materials like Acrylic cannot survive long in an outdoor environment, our UV stabilized 576E butyrate has a high optical density in the ultraviolet range, which translates to a longer and more functional lifespan for outdoor use.

To the Right: Acrylic tubing from months old to several years old. Notice the yellowing, to browning. The tube (second to the left) was only in use for less than one year. With the color change comes easy breaking.

Butyrate tubing, even after some long-term stress cracking will remain structurally sound for years.

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Old and highly yellowed acrylic valve stem protectors next to their new clear butyrate replacements
Lisa Pugh examining the new butyrate valve stem protectors in use
A collage of images demonstrating the clarity of Busada tubing with diverse objects placed inside tubes

The inherent clarity of Busada 200® rigid plastics tubing is extraordinary. Both CAB and PETG lines are crystal clear and ideal for applications that rely on visual inspection. Equally important, distortion is minimal – even in ½” wall thicknesses. And the extremely smooth interior of Busada 200® hard clear plastics tubing provides excellent low-drag conveyance advantages. From the manufacture of paper cups to the pneumatic transactions of drive-through banking, it is as if you are working with glass, but with more versatility.

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Machining
Tenite can be worked with most tools used for machining wood or metal. Tool speeds should be such that the plastic material does not melt from frictional heat. In general, the highest speed at which overheating the tool or plastic does not occur will give the best results.

Bending
Hot or cold bending can be used to produce simple shapes from Tenite profiles. The maximum amount of bend will depend on the extruded shape, thickness, and rate of deflection. An electric strip heater set at optimum profile temperature may be used for hot bending.

Drilling
Drills designed especially for plastics are available, and their use is suggested for drilling Tenite cellulosic plastics; however, standard twist drills used for drilling metal or wood can be satisfactory as long as speeds and feed rates are kept modest.

Sawing
Tenite can be sawed with any saw used for wood or metal— circular saws, band saws, saber saws, jigsaws, hacksaws, or handsaws. Some of these saws, however, are better suited for sawing plastics because they produce smoother or faster cuts than others. Circular and band saws usually produce the best surfaces, and they can be used in most sawing operations.

Solvent polishing
An effective method of eliminating fine surface scratches and producing a high gloss on cellulose plastics is solvent polishing. The article is usually dipped or wiped with a suitable solvent and then dried. Some solvent mixtures have been used successfully for dip-polishing.

Transparent Butyrate falls into the lower echelon category of “insulative;” but due to its plasticizer and moderate water absorption, it is less insulative than acrylics, polycarbonates, PETG, and PVC. And as humidity increases butyrate enters the category of “antistat” due to butyrate’s water absorption.

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The Roasting Plant coffee shop in Michigan with rows of bean dispensers connected to the pneumatic conveying system