Next message: Gary Brobst: "Re: lv-ab: Test"
All:
I have some experience with abrasive cleaning. I did sandblasting on
excavating and material handling equipment for many years. In my
experience the operator is as important as the equipment. We did silica
blasting on heavy steel most of the time and the results were
excellent. We tired to clean sheet steel less than 1/8 inch thick and
did more damage than good. Some paints are easy to remove but any
resilient coating will resist the blasting process and expose the
substrate to damage. This is exacerbated by a coating that adheres in
some areas and is easy to remove in others.
We did one job where the customer wanted plywood etched to imitate
driftwood. An experienced operator had good results with worn silica
abrasive and reduced air pressure. Experience was the key.
I have such a situation on my fiberglass hull. I plan to have an
experienced operator remove the bottom paint with bicarbonate of soda or
remove it by hand with an disk sander.
The object is to preserve the hull and remove the paint as cheaply as
possible. With either method experience and patience is essential.
Bill
Lew Hodgett wrote:
> Ron Rogers wrote:
>> There are now people offering to blast your hull with bicarbonate of
>> soda. I saw it being done and it is gentle and effective in the right
>> hands. No danger of removing the gelcoat.
>>
>
> The latest for use in the refineries are CO2 pellets, AKA: Dry Ice.
>
> No water or sand clean up, thus downtime is minimized.
>
> Don't ask the price<G>.
>
>
> But at $3+/gal for gasoline, becomes very attractive to the refineries.
>
>
> Lew
>
> ___________________________________________________________________________
>
> || The Live-Aboard List : send a "subscribe" or "unsubscribe"
> request ||
> || in body of message to:
> ||
>
>
___________________________________________________________________________
|| The Live-Aboard List : send a "subscribe" or "unsubscribe" request ||
|| in body of message to: ||
