Practically Classics Forum

Hello everybody, late last year I painted the wing of my ford with cellulose paint which reacted with something and went crazed like an old oil painting,I used a heater to dry the paint as it was winter and the general consensus on the forum was that I had dried it too quickly which caused the cracking.Over the last 3 weeks I have rubbed the whole wing back to bare metal,primed it with cellulose primer left that for a week, then flatted back and over the course of a day given the wing about 4 good top coats of cellulose.I left the top coat for a week then today I cut the paint with upol 333 cutting compound on an electric mop and gave it a polish with mer.this was at around 10 am this morning and I left the wing looking shiny and new,its now nearly 4 o'clock and the whole wing is again covered in cracks! what the f### is causing this to happen? I thought a week was plenty of time for the paint to have hardened in the hot sun but I am now faced with doing the whole job for a third time,obviously I won't be using the upol again unless anybody can tell me otherwise I'm assuming that the chemicals in it have something to do with the reaction I keep getting although surely thats what its for isn't it?

Keith.

Sounds like a silicon reaction to me.

Would that be a reaction to the silicon in the upol333 or a reaction to silicon residue on the wing before I painted it ? I took the whole thing back to bare metal and cleaned it before spraying.

Silicon is almost impossible to remove, so any product you may of used that are high in silcon could be the cause.

Do you have a photo of the latest problems.

I certainly do have a picture of the latest problems unfortunately I can't remember how to post them I've got a photo bucket account and they are in there but its ages since I used it,can anybody tell me how please ?

you can either copy the link from photobucket to the image and put the link in tags starting with [img]and%20ending%20with[/img]
or you can upload the picture to the board with the attach function (when you compose a message it is just below the box you enter your text in)

OK I hope that I have got this right,if so then there will be a picture of my wing complete with cracks in the paint,If not you will have to use your imaginations but every thing was fine with the top coat for a week whilst I left it to harden and then about ! hour after polishing with upol333 the cracks began to appear fine at first then gradually getting wider and longer over the course of 2 or 3 days though strangely not eating into the primer underneath.

bugger no pictures ! oh well I'm about as good with computers as I am with a spray gun!

http://s874.photobucket.com/albums/ab301/68corsair/

Try this!

This is how you do it:


if you do a quote of this message you will see how. you get the link from the "direct html" bit on photobucket