Loads of these types of liquid on the market & the prices vary. To my mind autoglym performed well & didn't cost a bomb, the green gel type. I was very impressed a couple of years ago when I came across a bottle of this lurking in my shed, it had all but dried up, so me being me, I revived the gel by adding a wee splash of white spirit, then a lot of shaking. Worked a treat on my diesel hack.

Funnily enough, I cannot for the life of me remember purchasing this magic liquid.

Ummm I've never seen heat used and I would be concerned it will cause damage or risk heavier discolouration in future.

On my Panda I've used Gtechniq C4.

This is a semi permanent coating rather than a dressing. Takes about 12 months to wear off and makes trim look new, it doesn't give that 'used car dealer' look where it appears to be like oil or very greasy. Looks expensive and it is (£20-30 for 15ML), but that easily treated my car and the missus with next to no hassle, I'll see if can dig out some pictures for you, if not I'll snap some tomorrow after work.

On a side note, the products is very hard wearing with no special aftercare......but because it's so hard wearing do not drip it on your paint, or else you will need to machine polish it off! However the application process doesn't make it easy to do that [emoji106]

If that doesn't float your boat the best thing I've used in second place is Autoglym Bumper and Trim Gel, so good that the Autoglym Professional Rubber and Trim Dressing is the same, just in massive quantity. Hope this helps bud.

Armorall shield.

I also use meguires all seasons dressing on all external plastics. You can try this.