Cellulose/solvent paints
Discussion
Nitro cellulose paint is different to polyester / acrylic basecoat although both can be considered as solvent, you cannot compare the two for performance . Water based still has a solvent content and some other nasty chemicals in it too, but vocs are lower and thats all people care about. Solvent is
making a comeback though, my local morrellis is selling glasurit 55 line again although I've not tried it.
making a comeback though, my local morrellis is selling glasurit 55 line again although I've not tried it.
no such thing as a daft question, if you dont know you dont know ! and that includes me BTW.
i am hoping that someone answers you in such a fashion that i can follow it too, because i get confused with paint types and the various descriptions given.
So here is hoping that someone out there makes it easy for us both. . .
1) is base coat the stuff that dries very dull and needs clear or lacquer over it.
2) 2 pack does not need clear. . . or does it ?
3) so is 1K paint the same as base coat ?
4) Is 2 pack the one that needs a hardener or does one 1K need a hardenr too ?
HELP !
i am hoping that someone answers you in such a fashion that i can follow it too, because i get confused with paint types and the various descriptions given.
So here is hoping that someone out there makes it easy for us both. . .
1) is base coat the stuff that dries very dull and needs clear or lacquer over it.
2) 2 pack does not need clear. . . or does it ?
3) so is 1K paint the same as base coat ?
4) Is 2 pack the one that needs a hardener or does one 1K need a hardenr too ?
HELP !
1k is a broad term applied to paints that are 1 component , This can cover basecoats, primers and air drying acrylic lacquer used typically in aerosols.
2k is, you've guessed it, 2 components, I.e those that have an activator.
You are right about basecoat, it dries off dull, a 2k clearcoat is then applied .
2k direct gloss is a product that contains the paint pigment and other resins that produce a shine when dry, common on commercial vehicles painted red, white or blue. It's cheap, saves time on the spraying process but does fade when exposed to UV over a period of time.
2k is, you've guessed it, 2 components, I.e those that have an activator.
You are right about basecoat, it dries off dull, a 2k clearcoat is then applied .
2k direct gloss is a product that contains the paint pigment and other resins that produce a shine when dry, common on commercial vehicles painted red, white or blue. It's cheap, saves time on the spraying process but does fade when exposed to UV over a period of time.
Edited by Kidders on Wednesday 12th June 15:07
so if i am understanding this correctly, the focus on the water based stuff was to be of benefit to the environment, albeit that the toxins in the activator are pretty bad news for any one who should breath it in ? accordingly the return to solvent based products might be gaining some ground. . . .
Kidders told it as it is, but here's my take on it...
2) You dont have to clear coat every colour with a 2k system, "direct gloss" straight colours (usually) can be used without lacquering but with the advent of waterbourne, pretty much every colour is now clear over base.
3) Base coat, whilst usually not needing an activator, can be "called" 1k but you're mixing up terms that arent really interchangeable.
4)2 pack is a paint (or any product) that needs an activator to cure but you can add an accelerant to a lot of single pack paints to speed up drying, making them a sort of 2k.
benters said:
So here is hoping that someone out there makes it easy for us both. . .
1) is base coat the stuff that dries very dull and needs clear or lacquer over it.
2) 2 pack does not need clear. . . or does it ?
3) so is 1K paint the same as base coat ?
4) Is 2 pack the one that needs a hardener or does one 1K need a hardenr too ?
1) Basecoat needs a lacquer over the top, basecoat can be single pack (cellulose, acrylic, or waterborne...) and the lacquer is usually 2K, but it could be a single pack (1K) such as cellulose, nitro-cellulose, acrylic or even (rarely) waterbourne {still being fully developed}1) is base coat the stuff that dries very dull and needs clear or lacquer over it.
2) 2 pack does not need clear. . . or does it ?
3) so is 1K paint the same as base coat ?
4) Is 2 pack the one that needs a hardener or does one 1K need a hardenr too ?
2) You dont have to clear coat every colour with a 2k system, "direct gloss" straight colours (usually) can be used without lacquering but with the advent of waterbourne, pretty much every colour is now clear over base.
3) Base coat, whilst usually not needing an activator, can be "called" 1k but you're mixing up terms that arent really interchangeable.
4)2 pack is a paint (or any product) that needs an activator to cure but you can add an accelerant to a lot of single pack paints to speed up drying, making them a sort of 2k.
benters said:
so if i am understanding this correctly, the focus on the water based stuff was to be of benefit to the environment, albeit that the toxins in the activator are pretty bad news for any one who should breath it in ? accordingly the return to solvent based products might be gaining some ground. . . .
Yes, that was/is the main driving force behind the move towards water, although solvent is making a slight comeback, we're more likely to see waterborne clearcoats being better developed in order to reduce VOC emissions.
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