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2. Poly(methyl methacrylate) - Wikipedia

   en.wikipedia.org/wiki/Poly(methyl_methacrylate)

   It has a density of 1.17–1.20 g/cm 3, [1] [16] which is approximately half that of glass, which is generally, depending on composition, 2.2–2.53 g/cm 3. [1] It also has good impact strength, higher than both glass and polystyrene, but significantly lower than polycarbonate and some engineered polymers.

3. Thermoforming - Wikipedia

   en.wikipedia.org/wiki/Thermoforming

   Sheet thicknesses greater than 3 mm (0.120 inches) are usually delivered to the forming machine by hand or an auto-feed method already cut to final dimensions. Heavy, or thick-gauge, cut sheet thermoforming applications are primarily used as permanent structural components.

4. Bulletproof glass - Wikipedia

   en.wikipedia.org/wiki/Bulletproof_glass

   Bulletproof glass of a jeweler's window after a burglary attempt. The Mona Lisa behind bulletproof glass at the Louvre Museum. Bulletproof glass, ballistic glass, transparent armor, or bullet-resistant glass is a strong and optically transparent material that is particularly resistant to penetration by projectiles, although, like any other material, it is not completely impenetrable.

5. List of thermal conductivities - Wikipedia

   en.wikipedia.org/wiki/List_of_thermal_conductivities

   This material which must have started out like unfired pottery was slip cast from fused silica. Then it was dried four days at 333 K before being tested. It was 9 inches in diameter and 1 inch thick, density 1.78 ⋅ cm −3. The first run went to 1317K and then on the second run the same insulator proved to be more conductive. 1959. [110 ...

6. Kydex - Wikipedia

   en.wikipedia.org/wiki/Kydex

   From acrylic, it obtains rigidity and formability; from PVC, toughness, chemical resistance and good interior finish ratings. Sheet thickness ranges from .029 to .500 inches (0.74 to 12.70 mm) and can be thermoformed, post formed, brake formed and laminated. [2] Flexural modulus is 2,800 megapascals (400,000 psi)

7. 12 Deals To Score Under $20 on Amazon Haul - AOL

   www.aol.com/finance/12-deals-score-under-20...

   Offered in most letters, it measures 8.86 inches tall and 1.77 inches thick and requires two AA batteries, which are not included. More From GOBankingRates 7 Winter Clothing Items You Should Buy ...