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Porsche962 - thanks for the silicone advice. I did such a thorough job cleaning the panel it was not necessary - as you say - just use the right technique.
We had a cold and rainy day yesterday. High 50's. I warmed the garage with propane heaters (off when spraying) but had to open up to vent out and getting the normal hardner to react was tough - it was slow. I got a nasty run/drip that will have to be sanded out.
Today we have some sun and may be 60 degrees. I have another bumper to od
Would you recommend more hardener to adjust for the cool temps, more heat in the garage, or lighter spray applications on each coat, or more time inbetween, or all four?
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