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-   -   Best way to store custom models to prevent yellow (https://www.diecastaircraftforum.com/custom-made-models/309566-best-way-store-custom-models-prevent-yellow.html)

Josephplanefanatic 06-16-2019 10:40 AM

Best way to store custom models to prevent yellow
 
Hello all,

Iím sorry if this has been discussed before but I couldnít find anything.

I am having a large number of custom models being made over the next few years and I wanted to know the best way to store them to prevent the decals from yellowing?
As Iím having a very large number being produced, some will be 2-3 years old by the time they are all completed. I want to know the best way I can store these models please? I am not sure if I should keep them in their boxes as Iím worried that the decals will react with the plastic cradles and turn yellow or if they are left out to display they will do the same?

Any help would be greatly appreciated.

Thank you,
Best regards

BPanio 06-26-2019 09:38 AM

Re: Best way to store custom models to prevent yel
 
from my own experience, building plastic kits and doing custom models I can honestly say I have never had any of the decals yellow. I think with the technology and decal paper today it is highly unlikely it'll happen, at least over a short (lets say 5 years at least) period of time.

FlyNavyBDA 07-01-2019 02:14 PM

Re: Best way to store custom models to prevent yel
 
The new generation of decals do not yellow from my 15+ years of doing custom Herpa, Aero Mini, Inflight, plastic, resin, etc. HOWEVER, if you get your paints and gloss cotes out of sync and mismatched the entire aircraft can yellow in time.

HTF200 07-01-2019 03:24 PM

Re: Best way to store custom models to prevent yel
 
Deep freeze them.
They'll remain snow white.

DC-10_Tony 07-01-2019 10:00 PM

Re: Best way to store custom models to prevent yel
 
Quote:

Originally Posted by FlyNavyBDA (Post 2705650)
The new generation of decals do not yellow from my 15+ years of doing custom Herpa, Aero Mini, Inflight, plastic, resin, etc. HOWEVER, if you get your paints and gloss cotes out of sync and mismatched the entire aircraft can yellow in time.

Please elaborate. I am in the process of beginning the custom route because I tire of waiting for airlines which will most likely never show up. When you say out of sync, please describe the proper chemicals and techniques to achieve a flawless custom. I do have an airbrush, though I am by no means an expert.

If there is a dedicated thread to the intricacies of customizing diecast metal aircraft, please drop a link. Thanks!

jcahea 07-02-2019 12:17 PM

Re: Best way to store custom models to prevent yel
 
If you go on some of the sites curators of museums provide some information on how to preserve items.

One is acid free tissue paper to prevent surface damage. I don't know if polyfill is a good choice in preserving models, but that is how Brad Shinn packs them for safe shipping. That may just be to protect fragile parts.

As for the newer metal models you can attempt to protect, but due to some of the impurities in some metals they will eventually degrade from the inside out and their is nothing one can do to stop it once it starts.

FlyNavyBDA 07-02-2019 02:15 PM

Re: Best way to store custom models to prevent yel
 
1 Attachment(s)
Tony, I am no expert but I have been modeling for 40+ years. I would recommend not ever mixing enamel paint with an acrylic gloss or dull cote and vice versa. NEVER use the glosses from Walmart or the hardware store - that is where I learned some hard lessons years ago. If I use Tamiya paint I use Tamiya gloss. If I use Model Master paint I use Model Master gloss or dull cote. On that note, Rust-O-Leum now owns the Model Master brand apparently and they cannot tell me much about what stays the same and what has changed, etc.



I am far too lazy to airbrush although it would help me immensely with the quality of my models. Here is an example of the 1/144 Canadian F-101B Voodoo. I used a spray paint from Home Depot that was close match. Did not even pay attention to what it was. After I glossed it I got this browning a year later. The gloss did not go on smoothly either. It actually looks OK like weathering, but it could have been a complete waste because I did not pay attention to what I already know.



I use both Laserjet and Inkjet decals that I make and print myself. You have to gloss cote the inkjet prints. I like the laser because I can use Solvaset to lay the decals down and no initial gloss is necessary. Cannot do that with the Inkjet. Hope this helps.


Attachment 321588

DC-10_Tony 07-02-2019 02:33 PM

Thanks guys.

Hey, FlyNavy did you ever sort out how to get a flawless sheen with the clearcoat? Whenever I use it, I get that "orange peel" effect. And yeah, I always use Tamiya paints.

Cheers

FlyNavyBDA 07-02-2019 08:16 PM

Re: Best way to store custom models to prevent yel
 
I have had that issue too (see Voodoo) on occasion with the gloss doing orange peel or just not settling evenly. Seems to only have happened with the gloss and not medium gloss or dull cote. I THINK what MAY be happening is a temperature thing. If you shoot the gloss outside let the can and plane stay outside for a time. If you do it inside same thing. I NEVER spray anything inside or out when it is heavy humid or just rained (I live in Florida). Only other thing I can imagine is too much handling and body oil and dirty fingers causing issues. I typically only handle by the wing leading edges because I cover them with Bare Metal Foil when the plane is done.



My latest issue is the paint crackling up sometimes when adding a second or third spray. I think what is happening is not shaking the can enough and the paint solvent in the can shoots out from the bottom.


If I cannot sand it out I use CitriStrip to take off the paint and start over. Works on metal, plastic and resin. I formerly used Pine Sol but it just stopped working so I wonder about a potential formulation change. Hope this helps.

FlyNavyBDA 07-02-2019 08:26 PM

Re: Best way to store custom models to prevent yel
 
Let me add one other note on paint and gloss cote success. Once a can is half empty (or half full) I stop using it. The power of a new can seems to help even the gloss across the plane. Once you're on propellant fumes it tends to spit and not flow evenly. I save the half cans for coating inkjet decals or less important projects.

DC-10_Tony 07-02-2019 09:20 PM

Thank you kindly.


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