In message , ben
writes
I've only ever mixed this product in a Metal bucket and I need to make a mix
for the drain outside, problem is I can find a suitable metal sized
container, will mixing it in a plastic mop bucket suffice?
There is nothing on the lable to indicate NOT to use it in a plastic
container.

Do it slowly and the right way around (caustic soda to water (?))

You can get it to boil quite easily from the heat of the reaction if
you're not careful

Well, ... I have

And you can melt a plastic container

--
geoff