Has anyone notice yellowing on their Yamato?

[CID]

All of mine look fine...all out...all in a basement...non-smoker, dehumids, low light...not flourescent..but everytime this comes up I panic...man...I swear Ill carbon freeze them if I have too!

I hope that we can at least slow down the process of yellowing or eliminate it based on the feedbacks from other knowledable members.

Thanks,

[fifbeat]

Can someone answer my questions:

1) What causes the toys to turn yellow?

2) If they're kept in a good, clean environment (excluding in box); will they still turn yellow?

3) I thought ABS plastic did not turn yellow.

4) What kind of plastic did they use in the old Takatoku toys?

[Blaine23]

Heh... you'd think you guys had found out your valks have Ebola.

They are toys, after all... even if they do cost an arm and a leg. I'm just waiting for one of you to show off a newly installed vacuum sealed vault where the toys are viewable through 8 inches of steel and shatter-resistant glass...

"There's my favorite toy! It's so much fun!"

J/k... I know you guys are seriously concerned about your favorite things... but try to remember the laws of entropy here. Everything falls apart eventually.

[eugimon]

Actually, I thought it was better that the you pump the chamber full of some inert gas?

I tried to ask GF about this too, but she just stared at me and refused to talk unless I changed the subject.

[Godzilla]

Talk about starting mass panic here ... I have those new energy saving light bulbs I am slowly moving over to. I think they are UV. Cripes... this sucks. Pay high energy bill or hide the valks. *walks away cursing*.

[Black Valkyrie]

That`s why everybody including me prefer the Low Viz VF-1A cuz of it`s gery color, I wish that Yamato would make it in 1/60 scale and also 1S, 1J types.

[Neova]

I googled the net and found this out:

1. ABS can yellow with UV and direct sunlight

2. ABS usually has stabilizers to absorb UV

3. Heat can also breakdown the stabilizers that prevent yellowing

Everything that was said here is covered by Google.

Preventative measures:

1. Place toys in non UV enviroment, check light bulbs.

2. Keep toys in cool, dry but not super dry rooms

3. Add a UV protectant OR PAINT the Valkyrie as the paint will absorb the UV.

4. But add a UV protectant to prevent the PAINT from fading.

5. Add anti-uv film to your windows or when replacing windows, by ones with UV blockers, at least to the room where you display your Valkyries.

Checkout these links for more info:

http://www.albemarle.com/saytexfr_abs.htm

http://www.mcnett.com/images/editor/UVQUEST.pdf

http://www.sdplastics.com/ultravioletresistance.html

Commericial Grade Anti-UV coating - Looks like an acrylic plastic coating but in an 8+ gallon drum! Can be sprayed but I don't know if airbrushing will work.

http://www.shopabatron.com/Merchant2/merch...uct_Code=800020

There are smaller better solutions so if someone can hitup Home Depot for something usuable in an airbrush, let us know.

I'm definately going to try to get some anti-UV top coat spray or bottle and take care of my toys. Toys or not, I hope to pass my 1/48s down as a family heirloom one day. Who knows? They may be worth more than that old piano one day!

Edited March 22, 2004 by Neova