10 replies to this topic

[Chrisspantin]

Im familiar with alot of people having issues with paint blistering when cars are stored outside even though mine will live in a garage what prevention steps can i take to minimise the damage that water can cause

[deano01]

Make sure your garage roof doesn't have a hole in it. Wrapping the car in cling film will prevent it from the dreaded osmosis from attacking, especially if leaving for more than a week between driving.  

[Chrisspantin]

Mine is going to be used more reguarly than most so will be parked in the works car park while it rains is my concern

[Chrisspantin]

It has been resprayed to a high standard tho which i presume will help slightly

[Harry Hornet]

..its nothing to do with rain..

 

..its to do with wateri n the paint, freeze thaw...basic geography.....keep it warm/covered

 

..and Ive found that applying lots and lot and lots and lots of layers of polish has helped.....keeps the cold from penetrating the surface of the paint..  imo and testing..

 

HH

[Kieran McC]

Osmosis is in some of the Clams from when they were manufactured. To remove it the paint has to be taken back to the gel coat and a special barrier sealer applied.

Edited by Kieran McC, 25 October 2015 - 08:00 PM.

[909]

If the paint blistering is caused by osmosis is a debatable point.  If the blistering is caused by water absorbed through the paint, then the best defence would be regular waxing.  Older lacquer type paints were porous as a result of chemical evaporation when drying, so benefited by applications of wax polish.  I doubt VX220's are painted with lacquer type paints, but wax polishing will help to seal the paint. 

 

If in fact moisture is trapped in the original fibreglass mouldings as some suggest, then ensuring the car is not subject to freezing temperatures will no doubt help to prevent blistering.

[Chrisspantin]

Wicked cheers for all your help after i pick her up tomorrow she will get a clean polish seal and wax then

[mbes2]

Joe-turbo had 2 replacement clams under warranty which still had issues with paint work.. some have it some don't

[dylan390]

Osmosis in fibreglass and the resulting damage isn't actually caused by freezing, but by a process where the pressure of the liquid on these laminate eventually forms a blister. Appears to be in the thicker 'corner' areas of my bodywork albeit to a minimal degree.

[909]

Osmosis in fibreglass and the resulting damage isn't actually caused by freezing, but by a process where the pressure of the liquid on these laminate eventually forms a blister. Appears to be in the thicker 'corner' areas of my bodywork albeit to a minimal degree.

 

I'm not sure anyone has ever suggested Osmosis is caused by freezing.  Infact these blisters in the paint may not be caused by any form of Osmosis at all.  Most so called fibreglass Osmosis is found on the part of boat hulls that are immersed long term in water.

 

But the blistering maybe caused by freezing, if water/moisture is trapped between the paint layer and the fibreglass moulding. 

 

The blistering may also be caused by the release agent not being removed from the moulding before painting.