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Hypo on uvpc going yellow?

joe34

Member
Messages
282
Hi, I think this has been brought up before but I cant find it .Last week I was cleaning some uvpc with some hypo 1% mix and parts of it started to go yellow/orangey colour.

I've heard about this happening but this was the first time for me.I managed to scrub it off, but would of gone in time by it's self?  is it caused by uvpc being oxidized? and is there anyway of telling before hand?

 
1% mix will not cause yellowing dude..


Sent from my iPhone using Window Cleaning Forums

 
It can cause yellowing

The zinc oxide in the upvc will bleach it back out in a short while at that strength

I do first cleans and fascias etc with it and don't even worry about any yellow

 
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