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2. Package cushioning - Wikipedia

   en.wikipedia.org/wiki/Package_cushioning

   It is designed to absorb shock by crushing and deforming, and to dampen vibration, rather than transmitting the shock and vibration to the protected item. Depending on the specific situation, package cushioning is often between 50 and 75 mm (2 and 3 in) thick.

3. Shock absorber - Wikipedia

   en.wikipedia.org/wiki/Shock_absorber

   9) Pad switch (compression) 10) Wiper 11) Oil seal assembly, and shock seal 12) Negative buffer pad or limit switch (extension) 13) Piston with sliding blades and seal. The principal design alternative to the twin-tube form has been the mono-tube shock absorber which was considered a revolutionary advancement when it appeared in the 1950s.

4. Silicone gel sheeting - Wikipedia

   en.wikipedia.org/wiki/Silicone_gel_sheeting

   Silicone gel sheet (beige) Silicone gel sheeting (SGS) has been an effective reduction and preventive scar therapy since 1980. [ 1 ] It was first discovered to be used in treating scars by Perkins in Australia and New Zealand, and first discussed in the thesis of Karen Quinn, a British biomedical engineering student, in 1985.

5. Shoulder pad (sport) - Wikipedia

   en.wikipedia.org/wiki/Shoulder_pad_(sport)

   Shoulder pads are a piece of protective equipment used in many contact sports such as gridiron football, lacrosse, and ice hockey and some non-contact sports such as ringette. Most modern shoulder pads consist of a shock absorbing foam material with a hard plastic outer covering.

6. Superabsorbent polymer - Wikipedia

   en.wikipedia.org/wiki/Superabsorbent_polymer

   Superabsorbent polymers are now commonly made from the polymerization of acrylic acid blended with sodium hydroxide in the presence of an initiator to form a poly-acrylic acid sodium salt (sometimes referred to as sodium polyacrylate). This polymer is the most common type of SAP made in the world today.

7. Silica gel - Wikipedia

   en.wikipedia.org/wiki/Silica_gel

   Once saturated with water, the gel may be regenerated by heating it to about 120 °C (248 °F) [7] [8] for 1–2 hours. [7] Some types of silica gel will "pop" when exposed to enough water. This is caused by breakage of the silica spheres when contacting the water. [16] Regenerating silica gel is important for both economic and environmental ...

8. Fire retardant gel - Wikipedia

   en.wikipedia.org/wiki/Fire_retardant_gel

   When gel is applied to a surface such as an exterior wall, the water-filled bubblets can absorb much of the heat given off by the fire, thereby slowing the fire from reaching the wall. Gels can provide thermal protection from fire for extended periods even at 3,500 °F (1,930 °C).

9. Aerogel - Wikipedia

   en.wikipedia.org/wiki/Aerogel

   Aerogels are a class of synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas, without significant collapse of the gel structure. [3] The result is a solid with extremely low density [4] and extremely low thermal conductivity.