Smartening up roof bar blanks
 

I've just noticed how grey the circular blanking plates which cover the roof bar mounting points are.

Probably because I've been having a play with my new roof bars ;)

Anyway, I thought I'd use "back to black" to smarten them up. All it did was make them a nice shiny...grey :(

Can anybody suggest a way (other than buying new ones) I can get them back to black please?

Spot of polish well rubbed in will bring them back for a few months. I do mine when Auto Glimming.

I used back to black and a hard toothbrush. It gets right into the plastic that way and makes them dark again.

Just rubbing it on the surface is not enough.

warm gently with a hairdryer and wipe with a cloth

Really? That I will have to try :)

apparently as the oils in the plastic warm, it loosens the dirt.......i'm sure one of the detailers will elaborate.

I have read about the hairdryer trick on the DW forums and they say it works.

Hairdryer/heatgun will restore them.

Otherwise peanut butter/oil works well too.

I use Sonus Bumper and Tyre dressing for textured plastic.

Scrub with all purpose cleaner, dab the dressing on, leave for a few minutes and buff off.

I'll try the hotgun trick next time I do mine.

May sound daft, but daughters Corsa plastic bits where faded to grey, Used a Kiwi Scuff Coat shoe restorer comes with foam pad on end. applied, left to dry and buffed with duster. Still black after 6 months.