QUESTIONS WITH ALL CORRECT
ANSWERS
Which tpyes of plastic fram material are manufactured by injction mold? - Answer-
Propinoate, optl, nylon/polyamide
What types of plastic frames are hypoallergenic? - Answer-Optyl, Nylon/polyamid
What material of plastic frame is no adjustable? - Answer-Carbon fiber, polycarb, kevlar,
rubber
What plastic frame material is used for sport/safety purposes? - Answer-Polycarb
What material of fram is combines with nylon? - Answer-Carbon fiber and kevlar
What does Monel consist of? - Answer-Primarily nickle with a bit of copper and iron
mixed in.
What are the advantages and disadvantages of Monel? - Answer-Adv: Adjustable,
strong, light-ish, colorful, economical b/c cheap, repairable with solder / Disadv: Sweat
causes coating to come off thereby exposing the nickle and also causes abrasive areas
and sharp edges, heaviest metal frame
What are the advantages and disadvantages of stainless steel? - Answer-Adv: Light,
corrosion resistant, almost completely hypoallergenic, holds color, attractive,
flexible/springy / Disadv: Limited colors that are also matte, can get heavy, temples only
paperclip shape
What are the advantages and disadvantes of Titanium? - Answer-Adv: Hypoallegenic,
very light, 100$ corrosion resistant, durable AF / Disadv: Not easily manufacturable,
Expensive, need special soldering, tricky adjustments, bad durability
What are the characteristic of memory metals? - Answer-Consist of a mix of titanium
and other metals (not hypoall), High end, popular for kids' frame b/c they bend not
break, difficult to adjust
What are the characterisitcs of aluminum frames? - Answer-Strong, light, not flexible,
colorful, corrosion resistant
What glasses materials are hypoallergenic? - Answer-Optyl, Titanium