I know the Renovo fabric cleaning/conditioning products have a generally good reputation here, which unfortunatrly is not born out by my own experience… I refer to the cleaner only, of the cleaner/conditioner pack.
My 2008 NC’s soft top is in generally good condition. except for numerous small, faint mould spots. I’ve applied the Renovo cleaner to the roof several times, meticulously following the instructions, but I can’t remove these marks completely. I’ve used the whole bottle of cleaner over four applications and I don’t want to apply the conditioner until the fabric is completely clean… any suggestions, anyone?
I had same experience, but it does help, and I don’t think anything will get the spots completely off, but use the next step in the Renovo process, and that dies it all black, and you won’t see the spots. That stuff is fab, but be careful how you use it or you will be polishing it off your paintwork as it can stain.
Use Fabsil as below you will be amazed by the results. I bought Grangers Fabsil Gold 1 Litre Water proofer High Strength (£15.98) Ebay.
First hoover the roof, then wash with a baby bath liquid soap then dry off.
Fabsil. Best way is to get a tin of it… pour it into a receptacle of sorts and using a 3 - 4 inch ordinary paint brush, paint the liquid on. DO NOT get it on paint work or windows - it takes ages to get off. It’s worth masking up and covering areas. I know that sounds like a bit of a faff, but this stuff lasts two or more years from single application so it’s worth the effort. You can buy bottles of it (250/500ml) from any camping shop - should cost less than a tenner.
Keep a wet edge…do one side and one half of car then do other side. Let it touch dry, then do it again. It dries quite quickly.
Now bear in mind, it will smell for a few days… it’s not an unpleasant smell, just a chemical/glue like smell.
All you have to do for the remainder of two years is hoover your roof regularly with a brush attachment…nothing else required.
To be honest, to keep mohair in tip top conditon, all you really need to do is keep hoovering it. It’s the dust it collects that makes them go grubby - washing only exacerbates that issue. Hoovering makes the fibres stand up as well as removing dust - and that’s how it repells water.
I saw some pics once where someone had jet washed, but he must have had his lance on the finest jet it could provide as it left jet marks and lines all over.
My jet wash has an adjustable lance, so i can put it on fan setting, but even then, i’m not sure i’d want to get it too close.
What i did with mine was use one of those vacuum carpet cleaners, and it worked great.