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So what exactly is the problem with modern 2K? Is it something to do with application & drying characteristics?
My first ever real job was developing paints for industry many moons ago, making paints from scratch & testing them on various surfaces & for different applications. There shouldn't be any reason you can't modify twin-packs to behave as you want. IIRC using different activator/thinner ratios will change how paint applies & dries
ourmanflint-
There is nothing wrong with 2K primer or clear coat.
There is everything wrong with having to use a colour which is only available as a 2K single stage. You’ve got to get full coverage on at a push three coats, wait for a day for it to dry, carefully wet sand it avoiding rubbing through on all the tiny sharp edges bike have, then do your graphics as normal and then clear coat it with your chosen 2K clear cloat.
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It's also an application issue. With a car for example you're just chucking one colour on. With bikes, even with 'one colour' paint jobs you are going to have decals to add, either below or on top, and that is where it becomes a pain in the ballbag.
euan
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Aye I think everyone gets confused, as I know it...
1K single stage is like the old cellulose, colour and gloss you just spray on after reducing.
I think we are talking about 2K single stage which is again like cellulose but also requires hardener/activator.
And all we want is 2K two stage, aka base/clear coat.