×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Revitalizing 40 year old plastic lenses, plan B.

Revitalizing 40 year old plastic lenses, plan B.

Revitalizing 40 year old plastic lenses, plan B.

(OP)
If there is no way to roll back time and make old brittle plastic tail light lenses youthful and supple, Step 2 would be use the old lenses to make molds to cast new ones.

What would be a good casting plastic that could be made red with decent transparency/translucency ?

thanks,

Dan T

RE: Revitalizing 40 year old plastic lenses, plan B.

Urethanes, maybe not the best stuff but pourable and readily available.

Sheet acrylic and polycarbonate can be readily thermoformed with low-cost molds.

RE: Revitalizing 40 year old plastic lenses, plan B.

Might be cheaper & easier to 3D print them but the quality and material properties are all over the place. Are you sure you can't just buy new old stock?

----------------------------------------

The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows.

RE: Revitalizing 40 year old plastic lenses, plan B.

I have no idea where you are but where I live, we have Tap Plastics Linkand they sell clear casting resins & mold forming products. Clear Methyl methacrylate (Plexiglass Resin) and Polyester. It is also possible that a good boat supply house has some good candidate materials for this project.

RE: Revitalizing 40 year old plastic lenses, plan B.

(OP)
thanks All,

Dan T in Massachusetts

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close