henan okay.com: Sheet, HDPE, Black, 1/8 In T, 24 x 48 In. 2 offers from $24.51. HENAN OKAY Black Plastic Sheet 1/8" x 24" x 48” Textured 1 Side Vacuum Forming. 4.8 out of 5 stars. 234. 3 offers from $26.42. Polymersan Marine Board HDPE (High Density Polyethylene) Plastic Sheet 1/4in x 12in x 24in Black lor Textured. 4.6 out of 5 stars.