Wickes white furniture board panels are the same nuisance.
They are labelled with a thin paper 2" x 3" sticker, with a strong glue impossible to remove without tearing the label into crumbs.
Also the label is overprinted with two colours of ink, black and blue. The blue ink bleeds through the paper and stains the melamine faced board, needing lots of isopropyl alcohol and rubbing to remove.
The glue eventually shifted with that sticky stuff remover fluid that smells of oranges, but a huge waste of time dealing with it.
You can get citrus oil based label remove sprays. Spray them on the label and leave to soak for a bit. They penetrate and soften the glue, making it easy to peel off.
(not quite as good on plastic ones - but very good for paper (which are normally harder to remove anyway))
Well, I tried everything except the orange peel on something like thirty B&Q labels today.
I had a heat gun (unbelievable value at £12 from either Screwfix or Toolstation in 2020). It was slow but did the job.
The hard part was getting to the remaining gunge off.
WD40 does work but petrol is better. I haven't bought lighter fluid since 1970 but I had a can from my late father. It is also best for permanent ink (separate thread).
I needed lots of rags. Mrs Pinnerite was very obliging.
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