Quote Originally Posted by liegeprime View Post
hmmm must be a bad batch kup. My Vroom hasnt yellowed (knock on wood) yet or at all actually. Although my downshift figure could use a creme treatment, it's not pristine white as it should anymore.
Quote Originally Posted by kup View Post
Just to mention that it actually took two years to yellow again (wow I didn't realize it had been that long!), it wasn't a sudden thing.


That's why the whole thing seems strange to me. The toy had been kept in constant darkness ever since I whitened it. My guess is that although sunlight (artificial light) may expedite the process, yellowing can occur despite of it just for being exposed to air.

As we know, some plastics are more prone to yellowing than others so maybe some will mostly be affected by sunlight while others just need to be exposed to air to yellow.
Thanks for the reply Kup....It would seem what you are both saying makes sense. Some plastics (especially if the batch was not quite right) are prone to yellowing with age due to exposure to just air

Frustratingly disappointing to say the least