WHITE BLOTCHY SPOTS ON PAINTWORK...OSMOSIS?
Discussion
Gday
Throw this one into the forum..
I have noticed that my 87 S3 Calypso red,is starting to get little white spots on the bodywork,not many though a few.esp on the wing mirrors.
I have read some where that it is osmosis...
That could be caused by the car being in a garage that is not heated or poor ventilation .
I have also read that if over the winter months... er here in UK, that if you have some form of heater or dehumidifer on during these months .. there will be no problems.
Any answers true or false
What problems could be effected when the car goes to a warmer climate ,like Queensland Australia ...huh apart from paint fade.
Is this this a good ? for you Kylie .... in that cold part of the world NZ
Aso in a hot climate .... if the paintwork is in ok shape and colour is good condition .... would endles coats of clear lacquer on the car .. help from paint fade
Many Thanks
Alex
Throw this one into the forum..
I have noticed that my 87 S3 Calypso red,is starting to get little white spots on the bodywork,not many though a few.esp on the wing mirrors.
I have read some where that it is osmosis...
That could be caused by the car being in a garage that is not heated or poor ventilation .
I have also read that if over the winter months... er here in UK, that if you have some form of heater or dehumidifer on during these months .. there will be no problems.
Any answers true or false
What problems could be effected when the car goes to a warmer climate ,like Queensland Australia ...huh apart from paint fade.
Is this this a good ? for you Kylie .... in that cold part of the world NZ
Aso in a hot climate .... if the paintwork is in ok shape and colour is good condition .... would endles coats of clear lacquer on the car .. help from paint fade
Many Thanks
Alex
Hey cut the cold bit out eh!! Its only 15deg c, not bad for a winter month I thought. 
Ah now to try and answer your question. Osmosis looks like small blisters not so much spots. Are there any fine cracks in them or a slightly raised surface?
Seems like there has been some sort of reaction taken place. Does sound like water getting in somewhere. Cant really say without having close look. If you can post a couple of pics or send to my email if you wish.
As with bringing your car to a warmer climate well good luck!! Your paint will all fall off and out comes the second skin like those aussie snakes, am only kidding! Sorry don't know exact answer to that.
Just a little bit about osmosis for those who want to know;
Glass fibre cars are prone to osmosis!
Osmosis is the process by which water gets into the laminate, reacts with the resin and other chemicals contained in it and forms blisters which can eventually lead to the breakdown of the laminate.
In some cases, reactive impurities in the gelcoat and laminate will cause osmosis in the early life of the car. This is a structural problem and should be referred back to the car manufacturer. Approximately 15% of osmosis cases are accounted for in this way and will normally become evident within the first three years of the cars life.
Fading paint, small blotches;
Eventually the gelcoat will begin to fade. This is a result of the attack of UV (Ultra Violet) light in sunlight. Conditions can occur which cause loss of gloss and 'chalking,' where the surface gradually breaks down to a powder. Polishing with wax may delay this, but eventually a coat of paint will be needed to protect the gelcoat surface.
Well just a few things here so you can make your own call. I really need to take a look before I make further judgements. I posted some stuff a few weeks back on more paint problems in gelcoat. My thread should be there somewhere.
Cheers
KS
>> Edited by kylie on Thursday 5th June 22:38
Ah now to try and answer your question. Osmosis looks like small blisters not so much spots. Are there any fine cracks in them or a slightly raised surface?
Seems like there has been some sort of reaction taken place. Does sound like water getting in somewhere. Cant really say without having close look. If you can post a couple of pics or send to my email if you wish.
As with bringing your car to a warmer climate well good luck!! Your paint will all fall off and out comes the second skin like those aussie snakes, am only kidding! Sorry don't know exact answer to that.
Just a little bit about osmosis for those who want to know;
Glass fibre cars are prone to osmosis!
Osmosis is the process by which water gets into the laminate, reacts with the resin and other chemicals contained in it and forms blisters which can eventually lead to the breakdown of the laminate.
In some cases, reactive impurities in the gelcoat and laminate will cause osmosis in the early life of the car. This is a structural problem and should be referred back to the car manufacturer. Approximately 15% of osmosis cases are accounted for in this way and will normally become evident within the first three years of the cars life.
Fading paint, small blotches;
Eventually the gelcoat will begin to fade. This is a result of the attack of UV (Ultra Violet) light in sunlight. Conditions can occur which cause loss of gloss and 'chalking,' where the surface gradually breaks down to a powder. Polishing with wax may delay this, but eventually a coat of paint will be needed to protect the gelcoat surface.
Well just a few things here so you can make your own call. I really need to take a look before I make further judgements. I posted some stuff a few weeks back on more paint problems in gelcoat. My thread should be there somewhere.
Cheers
KS
>> Edited by kylie on Thursday 5th June 22:38
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