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Carf paint hardener

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Old 04-18-2014, 05:20 PM
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afterburner
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Default Carf paint hardener

Just wondering if anyone has had success using carf paint with a different brand of hardener that's available at the local paint shop. Thanks.
Old 04-18-2014, 05:32 PM
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You should not have a problem doing this. I have mixed my own colour from Skymaster paints I had and used a 2 pack harder bought locally to paint a repair on a Carf model. Just make sure the reducer is a 2 pack also. Do not use a normal thinners use this to wash the gun out.
Old 04-18-2014, 05:50 PM
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I've used Sherwin williams automotive General Purpose Urethane hardner #654 with CARF paints. Works perfect, in fact much better than the CARF hardner. The finish comes out very hard and durable not, soft and will rub off like when using the CARF hardner.

Mike
Old 04-19-2014, 03:24 AM
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Nick Yuhasz
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Mike:

What ratio of paint to hardener?

Thanks

Nick
Old 04-19-2014, 03:30 AM
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Originally Posted by Nick Yuhasz
Mike:

What ratio of paint to hardener?

Thanks

Nick
Nick, that hardner is used at 4:1. Four parts paint to one part hardner.

Mike
Old 04-19-2014, 03:30 AM
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General rule of thumb is 2 to 1. Mix reducer to suit. This would be two parts paint, one part harder, and reducer to suit. Don't forget a good quality mask. Breathing 2k is not a good idea.

Last edited by Justflying1; 04-19-2014 at 03:33 AM.
Old 04-19-2014, 03:32 AM
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Sorry Mike you beat me to it. As I said this is generally a rule of thumb but following the recommended instructions is always advisable.

Last edited by Justflying1; 04-19-2014 at 03:36 AM.
Old 04-19-2014, 03:48 PM
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049flyer
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Been building planes for 40 years and never heard of carf paint. Will someone please tell me what it is?
Old 04-19-2014, 03:55 PM
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Originally Posted by 049flyer
Been building planes for 40 years and never heard of carf paint. Will someone please tell me what it is?
CARF apints are the paints sold by Composite ARF for their aircraft, like this:

http://www.carf-models.com/public_ca...Id=@4@943@2101

and

http://www.carf-models.com/public_ca...Id=@4@943@2111

BTW, the correct mixing for CARF paints is 4:1 paint to hardener. You can go lower, for better durability of the resulting finish, but just be sure you are ready to paint it, because it hardens FAST - especially if you go lower than 4:1.

Bob
Old 04-19-2014, 05:19 PM
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049flyer
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Bob

Thanks, I'll check it out. Always searching for a new way to finish my planes!
Old 04-20-2014, 02:21 AM
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I used to use CARF's paint, but switched over to PPG's Omni brand and use a base coat then clear coat. You can also have it mixed for a one step application. Just easier to use, then the epoxy style of CARF paint.
Old 04-20-2014, 11:46 AM
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Originally Posted by 049flyer
Bob

Thanks, I'll check it out. Always searching for a new way to finish my planes!
Carf paints are only worth buying if you have a Carf model and want the colour paint to match your model. If you are starting from scratch just go to your local automotive paint supplies and buy from there it's a lot cheaper. You will also have a choice from buying 2K, Acrylic, Enamel.
Old 04-20-2014, 11:54 AM
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I also noticed the on the CARF web site it tells you to use automotive thinners. This stuff is crap to use with 2K paints. Automotive Thinners is good when you use the appropriate stuff for Acrylic,Enamel and washing your spray gun out with but for 2K the only thing you should be using is a 2K thinners more commonly called 2K reducer.

Also when buying Hardener you can get it in slow, medium, and fast cure. I personally prefer a slow cure to give me the extra time while painting.

Last edited by Justflying1; 04-20-2014 at 02:04 PM.

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