dnickj
Well-Known Member
some nice so and so has managed to scratch our anodised toerail and SWMBO does not like scratches - does anyone have any ideas on repairs without going to the cost of removal
Toerail anodising repair
- Thread starter dnickj
- Start date
Norman_E
Well-Known Member
Anodising is a bit like electro plating, not possible in situ.
Krusty
Well-Known Member
To avoid repeated, possibly unending, distress I suggest you re-educate SWMBO into the realities of boat-ownership. Once there is acceptance of the inevitability of scuffs and scratches, life afloat is markedly less stressful, more serene.
A
Anonymous
Guest
From:- http://www.anodizing.org/faqs.html
Can you advise me on trying to touch-up a part that has been scratched and gouged? This is a small printed circuit board that has a metal frame around it. The frame has a hardcoat finish on it, but over the years it has been damaged. Is it possible to touch-up the hardcoat in order to restore it to its original dimensions?
It might be possible to repair the anodized coating on the frame. However, if the basemetal has been affected, it is not possible to eliminate the scratches or gouges except by a mechanical repair of the substrate through sanding, buffing, etc., after removing all the anodic coating.
If the hard anodized frame cannot be easily removed from the circuit board, it is possible that the frame could be salvaged by a technique called brush anodizing. Brush anodizing can be thought of as a portable anodizing operation and has been characterized thusly: "If you can't bring the part to the anodizing tank, bring the tank to the part." This process is often used to touch up hardcoat or other types of anodic finishes in the aircraft, aerospace and other industries. For example, a hardcoated pneumatic or hydraulic cylinder on a aircraft that has been scratched or gouged may be brush anodized to keep the finish continuous over the part in order to prevent corrosion in the scratched area or to restore the hard wear surface. Aircraft landing gear surface finish repair is one important application of brush anodizing, but there are many other applications as well.
In brush anodizing the surface around the area to be repaired is masked off. The repair area is then etched to remove the anodic coating. This is done so that a "feathered" edge, which is very likely to occur at the edges of the scratched or worn repair area, will be eliminated. If the "feathered" edge were allowed to remain, the repaired anodic coating would be thinner in this area. The etch solution is flushed away. A tubular cathode rod with many holes in its wall is placed very close to the area to be anodized. Electrolyte is then passed through the cathode and allowed to flood the area. An apparatus to keep the electrolyte cool is also part of the system. The part being repaired becomes the positive, or anode, side of the electrical circuit. In this way the repair area can be anodized to the same coating thickness as the adjacent area of old anodic coating and the repair has been accomplished.
More information on brush anodizing, and brush anodizing services, can be obtained through Mr. Gary Torgerson at Brush Plating Specialties, 760-727-3656.
Can you advise me on trying to touch-up a part that has been scratched and gouged? This is a small printed circuit board that has a metal frame around it. The frame has a hardcoat finish on it, but over the years it has been damaged. Is it possible to touch-up the hardcoat in order to restore it to its original dimensions?
It might be possible to repair the anodized coating on the frame. However, if the basemetal has been affected, it is not possible to eliminate the scratches or gouges except by a mechanical repair of the substrate through sanding, buffing, etc., after removing all the anodic coating.
If the hard anodized frame cannot be easily removed from the circuit board, it is possible that the frame could be salvaged by a technique called brush anodizing. Brush anodizing can be thought of as a portable anodizing operation and has been characterized thusly: "If you can't bring the part to the anodizing tank, bring the tank to the part." This process is often used to touch up hardcoat or other types of anodic finishes in the aircraft, aerospace and other industries. For example, a hardcoated pneumatic or hydraulic cylinder on a aircraft that has been scratched or gouged may be brush anodized to keep the finish continuous over the part in order to prevent corrosion in the scratched area or to restore the hard wear surface. Aircraft landing gear surface finish repair is one important application of brush anodizing, but there are many other applications as well.
In brush anodizing the surface around the area to be repaired is masked off. The repair area is then etched to remove the anodic coating. This is done so that a "feathered" edge, which is very likely to occur at the edges of the scratched or worn repair area, will be eliminated. If the "feathered" edge were allowed to remain, the repaired anodic coating would be thinner in this area. The etch solution is flushed away. A tubular cathode rod with many holes in its wall is placed very close to the area to be anodized. Electrolyte is then passed through the cathode and allowed to flood the area. An apparatus to keep the electrolyte cool is also part of the system. The part being repaired becomes the positive, or anode, side of the electrical circuit. In this way the repair area can be anodized to the same coating thickness as the adjacent area of old anodic coating and the repair has been accomplished.
More information on brush anodizing, and brush anodizing services, can be obtained through Mr. Gary Torgerson at Brush Plating Specialties, 760-727-3656.
tross
Well-Known Member
Check out Frost Auto restoration at frost.co.uk