USA SEALING BULK-PT-CAC-17 Clear Cast Acrylic Plastic Tubes 4" ID x 4-1/2" OD, 1 Foot Length - Durable Plexiglass Tubing for DIY Projects, Display Cases & Aquarium Accessories

Commonly known as Plexiglass, Cast Acrylic is clear for applications that require seeing through the and is inherently resistant to scratching and abrasion.

Shape Tube; Material Cast Acrylic; Grade Standard

ID 4"; ID Tolerance (-0.000'' - +0.020''); OD 4-1/2"; OD Tolerance (-0.016'' - + 0.000''); Wall Thickness 1/4"; Length 1 ft.; Length Tolerance (-1.000" - +1.000")

Color Clear; Clarity Clear; Tensile Strength 9,000 psi; Tensile Strength Rating Good; Impact Strength 0.3 ft.-lbs/in.; Impact Strength Rating Poor

Coefficient of Friction 0.8; Friction Rating Not Slippery; Water Absorption 0.004; Water Absorption Rating Poor

It is formed by casting the monomer, methyl methacrylate, mixed with initiators and possibly other additives into a form or mold.