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Helmets - motorcycle helmets, right? - have shells of either fiberglass or Kevlar. The shell uses cloth, resin, hardener and paint. The padding contains polyurethane, which is a "polyol," a diisocyanate and a catalyst plus a blowing agent to turn it into foam. Then there is cloth, polycarbonate for the visor, a little bit of metal...
Wiki User
∙ 9y ago
Wiki User
∙ 8y agoPlastics. A Lexan/Polycarbonate/Makrolon Shell and a polyurethane foam.
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What materials can be used to mold a lightweight bicycle helmet?
Styrofoam would be a nice choice.
Mention any four colours used in making materials?
Materials used for making colors are mostly colored shells and plants.
What are the materials used in making ink?
no
What new materials are used in jewelry making today?
some new materials that are used in making jewellery today is beads, wire, and pliers
What materials were used to make shoes?
. A variety of materials are used for making shoes. Leather fabrics, plastic, rubber, fabrics, wood, jute fabrics, and metal are all materials used in shoe making.
What is another word for used like it was used for making materials?
utilized
How long does a motorcycle helmet last?
Depends on the materials used to make the helmet, but typically, you should replace a helmet every there years or so as the UV rays penetrate it and brake it down from the day you take it out of the box. Also, if you drop the helmet, even from knee height, you should replace it even then, as well as after a crash.
What materials are used in making an electric toothbrush?
ABS
What materials are used for making shoes?
Leather and canvas
What materials were used in the making of the tower bridge?
Steel
What are the materials used for making gears?
EN 24
What materials are used in making rivets?
mild steel
