Rejuvenating black sills

[drewroberts]

When I had an Audi 80 that had faded bumpers. I researched it and used shoe/boot polish, not the tinned stuff, but the instant liquid with sponge applicator. The black polymers used in it are exactly the same as the ones in the plastic exterior parts. Warm them up a bit first to open any ‘pores’ then apply evenly and allow to dry. Shiny black and waterproof. Worth a try?

 

[Erlingtheyounger]

When I had an Audi 80 that had faded bumpers. I researched it and used shoe/boot polish not the tinned stuff but the instant liquid with sponge applicator. The black polymers used in it are exactly the same as the ones in the plastic exterior parts. Warm them up a bit first to open any ‘pores’ then apply evenly and allow to dry. Shiny black and waterproof. Worth a try?

Great tip @drewroberts

 

[drewroberts]

I got great results from it as you can see from the pictures. Brought them back to looking like new. No chipping/flaking paint or lacquer required.
Better to rejuvenate the plastic with new polymers as it will absorb them like a sponge, instead of adding more layers of non-plastic remedies on the affected parts.

 

[Stan H]

When I had an Audi 80 that had faded bumpers. I researched it and used shoe/boot polish, not the tinned stuff, but the instant liquid with sponge applicator. The black polymers used in it are exactly the same as the ones in the plastic exterior parts. Warm them up a bit first to open any ‘pores’ then apply evenly and allow to dry. Shiny black and waterproof. Worth a try?

I've used that in the past and it turned out OK.

 

[terrywindy1]

Another vote for GTechniq C4, has done a great job on plastic and rubber trims on various cars