Airshied or thermoshield

[GaynorE]

hi everyone,

i'm also wondering which is the best out of airshield and thermoshield?

does thermoshield have better protection, last longer because its cured?

oh n how come airshield is not reccomended to cover french polish?
anyone tryed it?

can thermoshield be used over french polish?

once dryed (or cured) whats the difference

thanks again