Yes, I'll agree to that. It must a least dry for a day or so before applying the spray paint. It's also so thick that you'll need to "re-cut" windows and lights or else it might lift off the Faskolor paint...
I've tried to find nitro block on a webshop without luck...
I'll try and get the Fasblock for sure!
Any links to webshops would be great!
What's the exact name? FASKOAT? PAR40200?