Rusty
New Member
I have used both the Production Clear and Euro 2.1 on instruments. Both with good results. Both harden up nicely. I am considering trying the Euro 2020, but what are the differences besides the chemical change for the California market? I'm mostly concerned about hardness and gloss quality at the end of the day. Is it worth the experiment to try out the 2020 when having to buy the reducer as well?