Lubricant cracks clear polycarbonate
Lubricant cracks clear polycarbonate
(OP)
I use clear polycarbonate as an engineering material for test fixtures. I understand some oils and machining lubricant will cause cracking.
Could anybody recommend light lubricating oil that will not have this effect?
Just lubricating moving parts.
Thanks
Could anybody recommend light lubricating oil that will not have this effect?
Just lubricating moving parts.
Thanks






RE: Lubricant cracks clear polycarbonate
Good clean pure water.
Water and dish washing liquid (The Palmolive type).
Definitely not mineral oils as even if labelled paraffin, they contain some aromatics as impurities.
Nothing containing halogenated hydrocarbons or aromatic solvents or keytones.
Regards
Pat
See FAQ731-376: Eng-Tips.com Forum Policies for tips on use of eng-tips by professional engineers &
http://eng-tips.com/market.cfm
for site rules
RE: Lubricant cracks clear polycarbonate
Chris DeArmitt
"Knowledge has no value except that which can be gained from its application toward some worthwhile end."
Think and Grow Rich - Napoleon Hill
RE: Lubricant cracks clear polycarbonate
Clear PVC anyone?
I would guess the op needs it in sheet form to fabricate stuff?
If it is sheet then PC sheet is not too bad if used in an unstressed application as it has no residual stress in it.
There's also the dry lubricant option - Graphite, PTFE, MoS2 etc...
www.tynevalleyplastics.co.uk
RE: Lubricant cracks clear polycarbonate
RE: Lubricant cracks clear polycarbonate
Chris DeArmitt
"Knowledge has no value except that which can be gained from its application toward some worthwhile end."
Think and Grow Rich - Napoleon Hill
RE: Lubricant cracks clear polycarbonate
Corypad, I actually tried to think of the "other" one whilst writing the previous reply and could not just recall it. Easy, of course once you know the answer. It's all there you know - it's just the recall system that's getting flakey!
www.tynevalleyplastics.co.uk
RE: Lubricant cracks clear polycarbonate
There may be any other number of un-stated requirements so we could guess anything.
I fully agree another plastic that meets his requirements would be a very good idea.
Regards
Pat
See FAQ731-376: Eng-Tips.com Forum Policies for tips on use of eng-tips by professional engineers &
http://eng-tips.com/market.cfm
for site rules