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Future Curing Time?

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  • Member since
    October 2004
  • From: Mesa, AZ
Future Curing Time?
Posted by jschlechty on Tuesday, June 22, 2010 3:05 PM

I always see people post about allowing Future to dry/cure for 24-48 hours before applying washes, decals, etc.  My question is this:

I live in the Phoenix, AZ area.  Right now it is running about 105 degrees in the afternoon, with a low humidity.  Would placing my model outside for a few hours speed up the drying/curing process, or is temperature not a factor and its just time?  For that matter, wold using a hair dryer after applying Future do the same thing?

Thank you for your ideas and opinions on this in advance!

John

  • Member since
    May 2005
  • From: Left forever
Posted by Bgrigg on Tuesday, June 22, 2010 3:30 PM

Remember that "Haste makes Waste"!

Putting the kit in a cardboard box with a 60 watt light might be better, but better still is taking a deep breath and let time work for you. I thought I could hasten the drying time on a frame for a 1969 Barracuda kit and it worked very well. After a mere 30 minutes in the sun I ended up with a twisted and melted, but perfectly dried, frame.

So long folks!

  • Member since
    November 2008
  • From: Central Florida
Posted by plasticjunkie on Tuesday, June 22, 2010 3:35 PM

Why rush it , risking the likely possibility of ruining a good or excellent paint job?  Its best to let the Future sit for at least 24 hours before applying any decals, this way the Future will fully dry, just not partially as done with a hair dryer or not allowing enough time for evaporation.

 GIFMaker.org_jy_Ayj_O

 

 

Too many models to build, not enough time in a lifetime!!

  • Member since
    October 2008
  • From: Fullerton, Calif.
Posted by Don Wheeler on Tuesday, June 22, 2010 5:39 PM

According to Triarius, who may have something to add, acrylics dry from the outside in.  And I believe he also wrote that warmth will accelerate the process.  But you wouldn't want to overdo it.  I sat a small model out in the sun in a stainless steel bowl.  As the day progressed, the bowl acted like a magnifying glass and made a nice big dimple in it.  I figure that paint isn't dry until you can't smell it.  Future seems to take a couple of days to reach that point.

Don

https://sites.google.com/site/donsairbrushtips/home

A collection of airbrush tips and reviews

Also an Amazon E-book and paperback of tips.

  • Member since
    August 2005
  • From: Sydney, Australia
Posted by Phil_H on Tuesday, June 22, 2010 7:48 PM

It's not simply a matter of drying. An acrylic cures by a chemical reaction which alters the substrate at a molecular level. This takes time. Evaporation of the solvent will certainly be accelerated by the application of heat and, to an extent, so will the polymerisation of the acrylic base, but we are still talking in the order of several hours.

You may notice with Tamiya acrylics that in the first few hours after application, even though "touch dry". they are still "soft" and easily scratched. You can make a clean scratch very easily inside the first  4-6 hours. After 24 hours or so, it is much more scratch resistant and if you do manage to penetrate the paint layer, the scratch will often take a jagged form as the paint will literally shatter and flake off.

  • Member since
    October 2004
  • From: Mesa, AZ
Posted by jschlechty on Tuesday, June 22, 2010 9:24 PM

Thanks for the replies guys.  I guess I probably knew the answer before I posted the question, but I was hoping I could increase the productivity of the given time I have for modeling.  I especially liked the "haste makes waste" reminder.  Such simple logic, but so true.

  • Member since
    May 2005
  • From: Left forever
Posted by Bgrigg on Tuesday, June 22, 2010 9:57 PM

Well, that's me. Simple! Propeller

So long folks!

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