How to clean acrylic splashback?

[handmademitlove]

The acrylic splashback is behind the hob. For many reasons, it has not been cleaned as we go so now is covered in baked on grease / dirt. I think it is mainly grease that is the problem.

So far I have tried:

Steamer
Degreaser spray (extra strength!)
baking soda paste
washing up liquid
glass cleaner

Any new suggestions?

Did you have lemon juice and or vinegar in your baking soda paste. Did you leave it on. Have you tried Pink paste or spray?

Lemon juice/vinegar with bicarb of soda just makes water and salt plus a fun fizz in the process. So I wouldn't reckon that would help?

Have you put the washing up liquid on, left it to soak in and then tried steaming it?