Quoted from vid1900:Water based poly is even worse than oil poly.
Water based totally knocks down the playfield colors.
Still turns yellow, but it stays softer and less glossy.
It's super thin, so it takes 10 coats to equal the protection of a single coat of oil.
Do not use Water Based Poly on a playfield!WaterBasedPoly.jpg</blockquote
What if you wanna just use it to protect the shooter lane?