OA Bath question

[Chilli Rinse]

I plan on giving a seat an OA bath to get the rails as clean as possible. I have never used the stuff before so I have a question. I am pretty sure it's safe on plastic but will it affect the silver embossed lettering on the side of the saddle ? I have read it does not affect decals when bathing a frame so assume it should be OK. Am I right or should I not do it ?
Comments or warnings welcomed guys 
Thanks

[Chilli Rinse]

Thanks for the PM. You know who you are 

[brettypeeps]

What is the answer. I have never done it my self but seen it done in paddling pools so I would say plastic is safe

[Chilli Rinse]

What is the answer. I have never done it my self but seen it done in paddling pools so I would say plastic is safe

I was advised to use Citric acid as no problems have been experienced with any form of screen printing using it