Recommended adhesive remover?

[jadee]

Hello,
I've got aluminum window frames with awful adhesive marks. It's from that 'cloth' tape (like Duck Tape). It's all dried on and I don't really want to scratch the window frames to get it off. I tried nail polish remover but that won't shift it. I read online that WD-40 works but that didn't either. I then went to Home Pro and bought a spray can of 3M Adhesive remover - super-expensive, super-stinky and ...useless.
Before I waste any more money, I thought I'd ask on here is anyone can recommend a brand to try.
many thanks for any replies!

[PoorSucker]

Toothpaste...

[peterjackson]

If it's 'dried on' the solvent based products won't work. Try heating it up with a Hair Dryer and then applying the solvent. Citrus oil is also a good remover of glue, but again, not dried on.

[NeverSure]

1 part vegetable oil, two parts baking soda. Let soak.

Cheers

[bendejo]

WD-40

[GavinK]

Hairdryer as mentioned above and rubbing alcohol on cotton wool pads.

[Brit_Doggie]

simple lighter fluid works a treat.

[steven100]

Hydrochloric acid will work. But wear protective clothing and special protective gloves.

Don't get near the acid ... apply at length sparingly ... wait 2 min ..then wipe clean with lots of water.

not sure if it will also remove the powder coating on the aluminium frame .. ?

be careful.

Edited July 14, 2015 by steven100

[Lantern]

Try Tee Tree oil.

Handy stuff to have around anyway.

[IMHO]

Just to keep the trend of every response having a different suggestion....

Eucalyptus oil

[jadee]

Thank you very much to everyone for the replies, especially peterjackson and GavinK:

If it's 'dried on' the solvent based products won't work. Try heating it up with a Hair Dryer and then applying the solvent. Citrus oil is also a good remover of glue, but again, not dried on.

Yes, that works! Heating it up is the secret, I didn't know to do this. I used a hair dryer and then the 3M adhesive remover works fine, problem solved, many thanks

[Thongkorn]

Hairdryer as mentioned above and rubbing alcohol on cotton wool pads.

try the Mrs nail polish remover