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Building Tips and technical articles. => Paint and finishing => Topic started by: bill bischoff on April 07, 2024, 02:14:13 PM

Title: Wait time before spraying 2K clear
Post by: bill bischoff on April 07, 2024, 02:14:13 PM
 When applying Spraymax 2K aerosol clear over aerosol lacquer, how long should I let the lacquer dry first?
Title: Re: Wait time before spraying 2K clear
Post by: Motorman on April 07, 2024, 09:59:32 PM
3-5 months
Title: Re: Wait time before spraying 2K clear
Post by: bill bischoff on April 07, 2024, 10:14:07 PM
Dang! It must take you forever to complete an airplane.
Title: Re: Wait time before spraying 2K clear
Post by: Motorman on April 08, 2024, 08:42:35 PM
lol, That info came from a guitar site.

I try to wait a week between finishing systems nitrate/polycrylic/rustolium but for lacquer I'd give it at least 2 weeks.
Title: Re: Wait time before spraying 2K clear
Post by: Steve Dwyer on April 16, 2024, 06:26:04 AM
Does setting the model in the sun help speed up the outgassing process or whatever?

Steve
Title: Re: Wait time before spraying 2K clear
Post by: Brett Buck on May 28, 2024, 07:34:38 PM
Quote from: Motorman on April 08, 2024, 08:42:35 PM
lol, That info came from a guitar site.

I try to wait a week between finishing systems nitrate/polycrylic/rustolium but for lacquer I'd give it at least 2 weeks.

     At least some users of dope wait times measured in months at several points in the process, particularly after fillercoat/primer. Have to let it outgas and shrink as long as possible before sanding it.

     Brett
Title: Re: Wait time before spraying 2K clear
Post by: Dennis Adamisin on June 21, 2024, 07:06:54 AM
Quote from: Steve Dwyer on April 16, 2024, 06:26:04 AM
Does setting the model in the sun help speed up the outgassing process or whatever?

Steve

I do not think it is the UV (sunshine) as important as is heat.  What used to work for me was to leave the airplane in the car in the sun for a few days.  At first when you open the car you will smell the paint gassing out.  Air-out the car before day 2. I'd suggest doing this for maybe a week or so.  When you can't smell it gassing off (paint farts?) then it is pretty stable.

Of course lacquers continue drying for years - ask anyone who used to use Aero Gloss!