When I say laminate, I just mean the rolls of sticky back plastic. I don’t know if it’s called something else in your part of the world.

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It’s the stuff we used to use to protect our exercise books at school. Acid free sticky tape (scotch tape in the US?) will also work for smaller stickers, just make sure the sort you use doesn’t yellow.

I did test the brand of vinyl paper I used with water and it did hold up. I’ve only had it on my bike for a few months, but so far it doesn’t seem to have yellowed or faded. I probably should have cut out the sticky back plastic to be bigger than the sticker though.