[mark311069]

ive just started cleaning caravans as a side line to my window cleaning. what is the best way to get off black streaks/run marks

[rob fryer]

You can buy black streak remover from caravan centres but i have used a mixed solution of tfr from autosmart they have a new one out doesnt stain aluminum.

[mark311069]

i have tried fenwicks caravan cleaner neat on the marks and they wont come off.

[TVCS]

we do loads of caravans and find that gg3 window cleaning solution gets rid of them a treat.    I dont bother buying fenwicks now just use the gg3.  On the really really dirty ones I givit a spray with non caustic tfr first.

[DavyP]

Partially diluted commercial carpet cleaner does the trick nicely!

[dandandan]

You seem to get the black streaks off the window rubbers,i just wipe the off with the upvc cleaner while i`m cleaning my window frames.