"shiney" mark on roof-
- Thread starter andysat
- Start date
You will allways get marks on a soft top unless you never drop it but the AG Kit will even it all out untill you use it again 
but i find after a good soak with the hose when i wash the car it looks better untill i drop it again :x .
Take it you do not use any sort of shampoo on it when washing the car just water.
but i find after a good soak with the hose when i wash the car it looks better untill i drop it again :x .Take it you do not use any sort of shampoo on it when washing the car just water.
andysat said:Only had it a few days GAZA62.
Sorry mate never realised re roof treatment i used the AG kit first year with my Z and worked fine but last winter got a lot of mildew after trying Renovo this year she is naked wearing nothing as still not decided what to use but need to do more reading as in what to use after redaing posts about the roof being Permeable so may be best you stick with BMW kit.
Happy new year mate and trust me your gonna love spring time top down Sun morning
you can also get a large (1lt i think) bottle of canvas sealer in halfords in the tent section, works a treat and is half the price of autoglym. I've use it on my last 4 convertibles, I tend to re-seal twice a year but mine is kept in the garage most of the time.
The sealer doesn't completely seal the fabric but it water proofs the material (if that makes sense) and in my experience stops the roof from soaking up the dust etc that comes down with the rain and keeps the roof clean.
Link to the product, Fenwicks Awning re-proofer, I've used it over the last 4 years with great results, water based
http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_165060_langId_-1_categoryId_165576
Link to the product, Fenwicks Awning re-proofer, I've used it over the last 4 years with great results, water based
http://www.halfords.com/webapp/wcs/stores/servlet/product_storeId_10001_catalogId_10151_productId_165060_langId_-1_categoryId_165576
Advise to use a canvas selaer is frankly just misguided and at best saving a few £'s. Stick to one of the proprietory solutions from BMW or Ragtopp, etc.
Leave tent sealers for tents and roof protectors for the roof.
Abstract from my research and post of a year back:
One thing to note is the 'canvas' is not waterproof and not designed to be.
(I refer only to the automatic roof as the manual roof is an uninsulated construction):
The roof is actually 3 layers. The outer layer is itself 3 layers of poly-acryoniltrite fibres, polyethylene fibres and butyl rubber. Underneath that is a 15mm layer of insulating polyester (sound proof and warmth) and the final inner layer of polyurethane foam and polyethersulfone, for inside finish and insulation. Pretty complex for a folding bit of canvas
My interpretation of this is that water should actually permeate the outer layer and rely on the butyl to be the waterproof layer, so your not really waterproofing it but removing dirt from the outer fibres and protecting them.
Leave tent sealers for tents and roof protectors for the roof.
Abstract from my research and post of a year back:
One thing to note is the 'canvas' is not waterproof and not designed to be.
(I refer only to the automatic roof as the manual roof is an uninsulated construction):
The roof is actually 3 layers. The outer layer is itself 3 layers of poly-acryoniltrite fibres, polyethylene fibres and butyl rubber. Underneath that is a 15mm layer of insulating polyester (sound proof and warmth) and the final inner layer of polyurethane foam and polyethersulfone, for inside finish and insulation. Pretty complex for a folding bit of canvas
My interpretation of this is that water should actually permeate the outer layer and rely on the butyl to be the waterproof layer, so your not really waterproofing it but removing dirt from the outer fibres and protecting them.