TR90 plastic is a newer type of polymer plastic that has many advantages over more traditional plastics used in eyeglass frames. TR90 is lightweight, impact and heat resistant (to 350 degrees!) and is resistant to deformation. This plastic can be manufactured with bright colors and patterns. It is often referred to as plastic titanium or memory plastic.
|TR90 Plastic Eyeglass Frames|
Since TR90 plastic is clear, it is often desirable to create a lightly matte finish with slightly rounded edges. This will create a better surface for printing and will create a more comfortable consumer product.
The eyeglass arm part in the top of the picture is the clear molded part. This part was vibratory tumbled with a small general purpose, pyramid shaped Plastic Media and a mildly acidic compound solution for 2 hours. The part on the bottom is ready for printing with frosted surface finish and deflashed, rounded edges.