Re: [bolger] Re: Sand blasting for epoxy prep
In a message dated 8/15/05 10:50:54 PM Central Daylight Time,
stephensonhw@...writes:
New Science of Strong Materials" relates an account of how inconsistent
adhesive performance in glued plywood used on WW II gliders was remedied by
sandblasting. The objective was not to achieve a cosmetically smooth surface, but an
adhesive-friendly one.
Ciao for Niao,
Bill in MN
[Non-text portions of this message have been removed]
stephensonhw@...writes:
> It seems to me that sanding is meant to selectively wear away the highThis is one objective of sanding, but not the only one. J.E. Gordon, in "The
> spots so as to achieve a smooth surface.
New Science of Strong Materials" relates an account of how inconsistent
adhesive performance in glued plywood used on WW II gliders was remedied by
sandblasting. The objective was not to achieve a cosmetically smooth surface, but an
adhesive-friendly one.
Ciao for Niao,
Bill in MN
[Non-text portions of this message have been removed]
It seems to me that sanding is meant to selectively wear away the high
spots so as to achieve a smooth surface. How can sand-blasting do that?
Howard
spots so as to achieve a smooth surface. How can sand-blasting do that?
Howard
--- Inbolger@yahoogroups.com, "moose2much" <moose2much@y...> wrote:
> It seems one of the great burdens of taped seam construction or
> sheathed bottoms is the large expanses to sand. If the bottom and
> maybe the seams could be carefully sand blasted before adding new
> layers or paint time might be saved.
If sand is too aggressive, walnut shells are used on delicate surfaces; e.g.
taking the paint off of aircraft aluminum skin.
Roger
derbyrm@...
http://home.earthlink.net/~derbyrm
taking the paint off of aircraft aluminum skin.
Roger
derbyrm@...
http://home.earthlink.net/~derbyrm
----- Original Message -----
From: "moose2much" <moose2much@...>
> It seems one of the great burdens of taped seam construction or
> sheathed bottoms is the large expanses to sand. If the bottom and
> maybe the seams could be carefully sand blasted before adding new
> layers or paint time might be saved. I have a friend who has a
> monuement (gravestone) company and it would be easy to get a hull
> done. I would want to try it on a sample piece first. The sand may
> not eat the resin as fast as you would expect, rubber stencils are used
> for the lettering.
>
> Suffering From Post Bovine Traumatic Shock Disorder.
It seems one of the great burdens of taped seam construction or
sheathed bottoms is the large expanses to sand. If the bottom and
maybe the seams could be carefully sand blasted before adding new
layers or paint time might be saved. I have a friend who has a
monuement (gravestone) company and it would be easy to get a hull
done. I would want to try it on a sample piece first. The sand may
not eat the resin as fast as you would expect, rubber stencils are used
for the lettering.
Suffering From Post Bovine Traumatic Shock Disorder.
sheathed bottoms is the large expanses to sand. If the bottom and
maybe the seams could be carefully sand blasted before adding new
layers or paint time might be saved. I have a friend who has a
monuement (gravestone) company and it would be easy to get a hull
done. I would want to try it on a sample piece first. The sand may
not eat the resin as fast as you would expect, rubber stencils are used
for the lettering.
Suffering From Post Bovine Traumatic Shock Disorder.