Rust in tight places

I'm removing surface rust on a 4130 fuselage prior to priming.

Assume I'm in a place where I can't use my sandblaster.
I need to get into the tight places of a cluster to remove surface
rust.
I can get pretty deep in the cluster with emery cloth, but there is
the last 1/8".

There are rust converter chemicals on the market. Is it OK for me to
use
a rust converter prior to priming or am I fooling myself? - Mike

On Feb 5, 5:39*am, mhorowit wrote:
I'm removing surface rust on a 4130 fuselage prior to priming.

Assume I'm in a place where I can't use my sandblaster.
I need to get into the tight places of a cluster to remove surface
rust.
I can get pretty deep in the cluster with emery cloth, but there is
the last 1/8".

There are rust converter chemicals on the market. Is it OK for me to
use
a rust converter prior to priming or am I fooling myself? - Mike

get a finer grade of blasting media.. I can't see how you could get
any better results any other way.

Ben

stol wrote:
On Feb 5, 5:39 am, mhorowit wrote:
I'm removing surface rust on a 4130 fuselage prior to priming.

Assume I'm in a place where I can't use my sandblaster.
I need to get into the tight places of a cluster to remove surface
rust.
I can get pretty deep in the cluster with emery cloth, but there is
the last 1/8".

There are rust converter chemicals on the market. Is it OK for me to
use
a rust converter prior to priming or am I fooling myself? - Mike

get a finer grade of blasting media.. I can't see how you could get
any better results any other way.

Ben


I think he meant that he was in a location i.e. hanger where
sandblasting was forbidden.

Charles

On Feb 5, 4:48*pm, Charles Vincent wrote:
stol wrote:
On Feb 5, 5:39 am, mhorowit wrote:
I'm removing surface rust on a 4130 fuselage prior to priming.

Assume I'm in a place where I can't use my sandblaster.
I need to get into the tight places of a cluster to remove surface
rust.
I can get pretty deep in the cluster with emery cloth, but there is
the last 1/8".

There are rust converter chemicals on the market. Is it OK for me to
use
a rust converter prior to priming or am I fooling myself? - Mike

get a finer grade of *blasting media.. I can't see how you could get
any better results any other way.

Ben

I think he meant that he was in a location i.e. hanger where
sandblasting was forbidden.

Charles- Hide quoted text -

- Show quoted text -

That now does make sense but if the rust is slight there are small,
portable sandblasters that would work using the smallest compressors..

"stol" wrote in message
...
On Feb 5, 4:48 pm, Charles Vincent wrote:
stol wrote:
On Feb 5, 5:39 am, mhorowit wrote:
I'm removing surface rust on a 4130 fuselage prior to priming.

Assume I'm in a place where I can't use my sandblaster.
I need to get into the tight places of a cluster to remove surface
rust.
I can get pretty deep in the cluster with emery cloth, but there is
the last 1/8".

There are rust converter chemicals on the market. Is it OK for me to
use
a rust converter prior to priming or am I fooling myself? - Mike

get a finer grade of blasting media.. I can't see how you could get
any better results any other way.

Ben

I think he meant that he was in a location i.e. hanger where
sandblasting was forbidden.

Charles- Hide quoted text -

- Show quoted text -

That now does make sense but if the rust is slight there are small,
portable sandblasters that would work using the smallest compressors..

-------------------------------------------------------------------------------------------

The question is rust converter chemicals in tight places.

On Feb 5, 5:48*pm, "Maxwell" #$$9#@%%%.^^^ wrote:
"stol" wrote in message

...
On Feb 5, 4:48 pm, Charles Vincent wrote:





stol wrote:
On Feb 5, 5:39 am, mhorowit wrote:
I'm removing surface rust on a 4130 fuselage prior to priming.

Assume I'm in a place where I can't use my sandblaster.
I need to get into the tight places of a cluster to remove surface
rust.
I can get pretty deep in the cluster with emery cloth, but there is
the last 1/8".

There are rust converter chemicals on the market. Is it OK for me to
use
a rust converter prior to priming or am I fooling myself? - Mike

get a finer grade of blasting media.. I can't see how you could get
any better results any other way.

Ben

I think he meant that he was in a location i.e. hanger where
sandblasting was forbidden.

Charles- Hide quoted text -

- Show quoted text -

That now does make sense but if the rust is slight there are small,
portable sandblasters that would work using the smallest compressors..

---------------------------------------------------------------------------*----------------

The question is rust converter chemicals in tight places.- Hide quoted text -

- Show quoted text -

Rust converters not properly and completely flushed will corrode the
parent metal.. I guess I should have mentioned that first but I did
assume that is a no brainer.

My bad.

over and out.

"stol" wrote in message
...

Rust converters not properly and completely flushed will corrode the
parent metal.. I guess I should have mentioned that first but I did
assume that is a no brainer.

My bad.

over and out.

----------------------------------------------------------------------------------

Not all brands require a flush. Some convert surface rust to a hard dark
grey coating that seems to be an excellent sealer.

"mhorowit" wrote in message
...
I'm removing surface rust on a 4130 fuselage prior to priming.

Assume I'm in a place where I can't use my sandblaster.
I need to get into the tight places of a cluster to remove surface
rust.
I can get pretty deep in the cluster with emery cloth, but there is
the last 1/8".

There are rust converter chemicals on the market. Is it OK for me to
use
a rust converter prior to priming or am I fooling myself? - Mike

Do you have a specific brand in mind?

I have never used one on 4130, and never heard of one used on aircraft, but
I have had good luck on automotive applications.

On Thu, 5 Feb 2009 15:43:08 -0800 (PST), stol
wrote:

On Feb 5, 5:39Â*am, mhorowit wrote:
I'm removing surface rust on a 4130 fuselage prior to priming.

Assume I'm in a place where I can't use my sandblaster.
I need to get into the tight places of a cluster to remove surface
rust.
I can get pretty deep in the cluster with emery cloth, but there is
the last 1/8".

There are rust converter chemicals on the market. Is it OK for me to
use
a rust converter prior to priming or am I fooling myself? - Mike

get a finer grade of blasting media.. I can't see how you could get
any better results any other way.

Ben
use a brass wire brush and Phosphoric acid - MetalPrep or Water
Softener Resin Cleaner - same stuff at about 1/4 the price.

On Thu, 5 Feb 2009 20:49:47 -0600, "Maxwell" #$$9#@%%%.^^^ wrote:


"stol" wrote in message
...

Rust converters not properly and completely flushed will corrode the
parent metal.. I guess I should have mentioned that first but I did
assume that is a no brainer.

My bad.

over and out.

----------------------------------------------------------------------------------

Not all brands require a flush. Some convert surface rust to a hard dark
grey coating that seems to be an excellent sealer.


Phosphoric Acid (Metal Prep) does just that - used as an "etch" in
auto-body work to give the primer some "tooth" as well as getting rid
of any minor surface "flask\h" rust. Makes Iron Phosphate.