Am 90% through the cleaning process of the underwater area of my hull The
workers reckon they have ground off and removed about 300lbs of old paint and
fiberglass roving that was in a 'weak blistered' condition. That has left
dark stain patches and lesser blister holes / indentations . These stains are
bright yellowy orange and are, according to Wiki and Google, bromine the
fire-proof chemical added to the resin. So what's new !
I was having them washed with acetone, detergent and water. I had read this
here and they were going but VVV slowly. When in doubt read the instructions
--After quite a long hunt for bromine solvents ( read Google and Wiki and
University papers) I found bromine is NOT soluble in Acetone. It is only
lightly soluble in water. 3.8gms in 100gms water at 20deg C. Since reverting
only to hot water and brushes the marks are losing their colour slowly but much
faster than before. The detergent I believe was reducing the solubility in
water.
I believe the best solution is to remove the damaged ad blistered fibreglass
then use a steam cleaner .. but I haven't found one in Jakarta. Am hunting .
BTW, some blisters are bad and on grinding to remove blistering material the
holes have gone right through the hull. Strangely these (4) major holes are
exclusively beneath longitudinal foam reinforcing stringers. ....
Cheers Ross
--
You received this message because you are subscribed to the Google Groups
"UnifliteWorld" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/unifliteworld?hl=en.
