Decal Discolour

Was wondering what causes white decal to turn yellow. Poor Quality??

hi tom, its long been noted that being in direct sunlight causes decal fade, but one of the members recently posted a thread in which he was shown an old decal which had yellowed over time, but was then was put into direct sunlight for a day or so i think, and it regained its colours.....?    
someone on here will remember the details m8

Tom, Billy it was me who posted the thread a while back, here is the link;

https://www.diecastrallymodels.com/t2585-fix-for-old-yellowed-decals?highlight=Old+decals

I have tried this method on several sets of decals and it has worked every time, brought the white decals back to bright white from being very yellow, hope it helps  

Cheers guys,
The decals are on the car  
I'll have to stick car to window
Car is new this year and was in attic with no sunlight..

ah right tom lol!!!
.... is it a lot of decal thats faded m8? if only one or two, you could remove and replace?

Tom, you could put the model on a window sill that is in direct sunlight, might be worth a try???

Not a great photo but it shows problem complete side decal on both sides has discoloured.

The Model looks like it has been lacquered! Would that have had an input to the problem?

The more experienced Guys on here should have a better idea

def looks very glossy.....

Send the bugger back!

rsjon wrote:Send the bugger back!

my thoughts too!! he was good enough to take your money so should be good enough to sort out your problem! 
i could see through if the model was 20years old but less than 1 year its not good!!

Just had a look at my own and while its not perfect white, its the same as it was when it arrived. I put mine down to using off white decal paper when clear should have been used

rsjon wrote:Send the bugger back!

I should have done this when i got it first because it was a poor model then.. 
Its a shit model now!!!!