Graham_Wright
Well-known member
What is the best chemical for this prior to copper coating?
Removing release agent.
- Thread starter Graham_Wright
- Start date
VicS
Well-known member
Coppercoat say not to use any solvent.
See the info in their tech specs:
http://coppercoat.com/coppercoat-info/anti-foul-technical-specs
In particular the instructions for surface preparation :
GRP : As is common with all epoxy coatings, it is important that the substrate to be coated is well prepared. All surfaces must be must be cleaned of all contaminates, including dirt, dust, grease, rust or loose paint. Two-pack epoxy coatings, such as Coppercoat, must be applied to sound and permanent substrates – consequently all surfaces must be cleaned of any previously applied single-pack paint coatings or conventional anti-fouling. The best way to achieve this is to low-pressure slurry blast the hull, though old paint can be removed by hand. Finally, the hull must be abraded to provide a good key for the new epoxy coating. The most efficient method is to use a random orbital electric sander, with 60 to 120 grade discs and paper. Remove the resulting dust before proceeding with the Coppercoat application – either using a soft brush or cloth. The hull can be washed with fresh water but ensure this is allowed to dry before proceeding. Under no circumstances clean the hull with any solvents or oil-based products (such as Acetone).
It would also be wise to contact them for advice.
See the info in their tech specs:
http://coppercoat.com/coppercoat-info/anti-foul-technical-specs
In particular the instructions for surface preparation :
GRP : As is common with all epoxy coatings, it is important that the substrate to be coated is well prepared. All surfaces must be must be cleaned of all contaminates, including dirt, dust, grease, rust or loose paint. Two-pack epoxy coatings, such as Coppercoat, must be applied to sound and permanent substrates – consequently all surfaces must be cleaned of any previously applied single-pack paint coatings or conventional anti-fouling. The best way to achieve this is to low-pressure slurry blast the hull, though old paint can be removed by hand. Finally, the hull must be abraded to provide a good key for the new epoxy coating. The most efficient method is to use a random orbital electric sander, with 60 to 120 grade discs and paper. Remove the resulting dust before proceeding with the Coppercoat application – either using a soft brush or cloth. The hull can be washed with fresh water but ensure this is allowed to dry before proceeding. Under no circumstances clean the hull with any solvents or oil-based products (such as Acetone).
It would also be wise to contact them for advice.
Graham_Wright
Well-known member
Thanks Vic, I should have thought of that myself.
oldsaltoz
New member
A release agent is normally used in new mouldings, the removal will depend on the type release agent used, there is a wide range of products available so you need to the type used to work out what's needed to remove it.
Any clue why Copper coat do not want you to use Acetone specifically to clean the hull?
Good luck and fair winds.
Graham_Wright
Well-known member
…… so you need to the type used to work out what's needed to remove it.
Boat is still a water virgin and old (please don't ask!).
BlueChip
Active member
I'm also wondering that, it would evaporate completely and leave no residue.
