Reinforce transparent plastic

[pclegg25]

I have recently installed a machine for leak testing
car radiators. The machine works by lowering the radiator
into a tank of water and blowing compressed air into it.
If bubbles are seen, the core is a "leaker" and has to be repaired. To hold the core in situ whilst pressure is applied, a bar at either side clamps the core between both header plates. These bars are stainless steel and therefore cannot be seen through! Subsequently if a leak occurs where these bars mask, the leak cannot be located accurately. I intend to replace these bars with a material that is transparent, but durable. I would be grateful for any suggestions.

Paul

 

[CoryPad]

Your options include:

1) glass - obviously has a toughness problem, but you could use a tempered glass or a more exotic type like Pyrex

2) thermoplastics - polycarbonate and acrylic are two varieties, although they may suffer from creep and environmental degradation.

3) thermosets - epoxies and polyesters are two varieties, they have improved creep and environmental resistance compared to thermoplastics, but reduced toughness.

 

[Haf]

Lexan is another option. It's definitely durable (it's used as bullet-proof glass).

Haf

 

[CoryPad]

Haf,

Lexan is the trademarked name for polycarbonate manufactured by GE Plastics.