Now that summer is here we increase the stock of slow reducer and slow urethane hardener at the paint store. There seems to be a good deal of confusion as what slow means.
Automotive paint has a mixture of different solvents and we can adjust the solvency so in the winter when were painting at 60 degrees Fahrenheit we want the solvent to evaporate fast so the paint doesn’t run on us. Now that summer is here and were painting when the temperature is getting up to 90 or 95 we want to slow that solvency way down so the paint droplets will flow out one into the other so we have gloss.
I don’t think it is a good idea to paint when it’s colder than 60 because the chemical process of urethane just about stops at 50 degrees and your paint may never get hard.
And you don’t want to paint when it’s hotter than 95 or so it’s just too uncomfortable wearing protective clothing and respirator. And there is nothing to ruin a good paint job like a drop of sweat falling onto the hood of the car.
Set your self up with 3 or 4 different reducers and cocktail them together to give yourself good flow out and good gloss to meet the conditions of the day.
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.