Mark Bolton
Active Member
My RV - 4 has been subjected to dust and damp and is exhibiting some corrosion which has made it's way through the alclad in some small round patches, some small runnels of filimentous corrosion and a general and proably unproblematic dusting of white powder.
I have cleaned off all the dust and the visible white powder with a gentle wipedown with lots of clean water and left to airdry in the hot sun.
I am imagining that I will need to convert or pacify the corrosion to prevent it travelling further before painting over with a primer and finish coat. I can imagine the corrosion going crazy if painted over but not chemicaly neutralised. There are bits where the Scotchbrite has gone through the alclad entirely.
None of this is structural and all involves the bits of skin I had hoped to paint straight away but was side tracked for a couple of years.
One of the pilots I was working with talks about a preperation known colloquially as "Tomato Sauce" which converts the corrosion but must itself be painted over straight away since it has no mechanical integrity and if left exposed after treatment, can actually make things worse.
The reason for making this a seperate thread is that it is a case of getting to the stable door a bit too late.
Thank You in anticipation.
Mark
markabolton at yahoo dot com
I have cleaned off all the dust and the visible white powder with a gentle wipedown with lots of clean water and left to airdry in the hot sun.
I am imagining that I will need to convert or pacify the corrosion to prevent it travelling further before painting over with a primer and finish coat. I can imagine the corrosion going crazy if painted over but not chemicaly neutralised. There are bits where the Scotchbrite has gone through the alclad entirely.
None of this is structural and all involves the bits of skin I had hoped to paint straight away but was side tracked for a couple of years.
One of the pilots I was working with talks about a preperation known colloquially as "Tomato Sauce" which converts the corrosion but must itself be painted over straight away since it has no mechanical integrity and if left exposed after treatment, can actually make things worse.
The reason for making this a seperate thread is that it is a case of getting to the stable door a bit too late.
Thank You in anticipation.
Mark
markabolton at yahoo dot com