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2. Polystyrene - Wikipedia

   en.wikipedia.org/wiki/Polystyrene

   However, if the waste material goes through an initial compaction process, the material changes density from typically 30 kg/m 3 to 330 kg/m 3 and becomes a recyclable commodity of high value for producers of recycled plastic pellets. Expanded polystyrene scrap can be easily added to products such as EPS insulation sheets and other EPS ...

3. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Membrane roofing consists of large sheets, generally fused in some way at the joints to form a continuous surface. Cured Thermoset membrane (e.g. EPDM rubber, Neoprene). Synthetic rubber Cured Thermosets are synthetic rubbers that have undergone the vulcanization or "Curing" process. Seams of materials are bonded by adhesives or chemicals ...

4. Graft polymer - Wikipedia

   en.wikipedia.org/wiki/Graft_polymer

   CD case made from general purpose polystyrene (GPPS) and high impact polystyrene in the black portion (HIPS) High impact polystyrene (HIPS) was discovered by Charles F. Fryling in 1961. [19] HIPS is a low cost, plastic material that is easy to fabricate and often used for low strength structural applications when impact resistance ...

5. Home Depot accused of faking Black Friday deals by masking ...

   www.aol.com/finance/home-depot-accused-faking...

   This week, a TikTok video appeared to show that Fortune 500 home improvement retailer Home Depot allegedly masked original prices on items with a “Black Friday deal” of the exact same price ...

6. Styrofoam - Wikipedia

   en.wikipedia.org/wiki/Styrofoam

   The claimed R-value of styrofoam insulation is approximately 5 °F⋅ft 2 ⋅h/BTU for 1 inch thick sheet. [7] Styrofoam can be used under roads and other structures to prevent soil disturbances due to freezing and thawing. [8] [9] DuPont also produces styrofoam blocks and other shapes for use by florists and in craft products. [10]

7. Vacuum forming - Wikipedia

   en.wikipedia.org/wiki/Vacuum_forming

   A simple visualization of the forming process Vacuum forming machine to produce inner liner/food liner of refrigerator. Vacuum forming is a simplified version of thermoforming, where a sheet of plastic in various forms of High Impact Polystyrene Sheet (HIPS) for low impact products, or ABS for bathroom shower trays, and HDPE for exterior vehicle parts, plus various other types of vacuum ...