A&J Posted June 14, 2016 Share Posted June 14, 2016 My dealer literaly gave me a used (about 5ml left) Opti-coat 2.0 in a syringe. He hasnt used it in years and told me to try it out. He also warned me that it probarbly isnt good anymore but to try it anyways. So my questions are: 1) What is the shelf life of OC once it is opened and used? 2) Is it still safe to (try to) apply to my car? Link to comment Share on other sites More sharing options...
Setec Astronomy Posted June 14, 2016 Share Posted June 14, 2016 If it hasn't turned yellow/cloudy and gelled in the syringe, it should be fine to use. Link to comment Share on other sites More sharing options...
Ron@Optimum Posted June 14, 2016 Share Posted June 14, 2016 One small correction, Setec, the coating can yellow without effecting it's use (plasticizers in the syringe). Once it's gelled, it's no longer usable. Link to comment Share on other sites More sharing options...
A&J Posted June 14, 2016 Author Share Posted June 14, 2016 Nope stll liquidy...great, than i guess i just received 5cc of opti-coat for free...happy me! Link to comment Share on other sites More sharing options...
Setec Astronomy Posted June 14, 2016 Share Posted June 14, 2016 I'll correct myself also and say that it doesn't always get cloudy when it gels, the key is when the bubble doesn't move when you tilt the syringe you know something is wrong...of course when you push on the plunger and nothing happens and then you push harder and the gel splatters all over, you usually get the idea. Of course I wouldn't know anything about that... Link to comment Share on other sites More sharing options...
A&J Posted June 14, 2016 Author Share Posted June 14, 2016 Well I quess Im good then...thanks guys Link to comment Share on other sites More sharing options...
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