Lacquer based clear coats and drying time.

[[SC] Arachnicus]

Alclad Lacquer clear coats. How long before they dry to prevent accidental fingerprints? 24 or 48 hours?

 

[Wurger]

Every paint or enamel needs 24h to be dried fully. Each day more is always welcome.

 

[[SC] Arachnicus]

Thanks. I was assuming 48 hours.

 

[Wurger]

Yep ... this is a very good assumption.

 

[Wayne Little]

When you think it's ready, leave it a little longer...

 

[meatloaf109]

Excellent advice!

 

[[SC] Arachnicus]

Pastel chalk is just like finger print dust. Except finger print dust actually comes off of most things.

 

[mikewint]

It WILL "flash" dry on the surface in very very little time - being a lacquer. There's good and bad in that, though - it DOES get "touchable" within an hour or so... if you're awfully tender with your pinkies.

The flash drying, though, makes for a situation similar in nature to a big fat thick steak that you've just scorched good hard on the grill - it glazes the surface and locks the solvents in. Now the solvents have to ease their way out slowly. It get worse - because the surface hardens from the outside in, and every micron more it hardens means the remaining solvents have to go through that much MORE gauntlet on their way out.

So - it takes a lot more time than is apparent to reach full total hardness. It reaches PRACTICAL hardness within 24 to 48 hours, though. The old rule was to use your nose. When you can no longer smell the solvents you're good to go

 

[[SC] Arachnicus]

Thanks for the tip

 

[[SC] Arachnicus]

He'll it's more like a week.