What is this stuff for? Does anyone know of a process to get rid of it? How difficult is that job?

There was an old technique for corrosion proofing aircraft. It involved dry cleaning solvent and essentially, tar & paraffin. The dry cleaning solvent would dissolve the tar & paraffin and this solution would be sprayed on. The dry cleaning solvent would evaporate and leave the brown gunk sealing the surface. It was the main method of protecting seaplanes for years. Aside from being rather nasty, it doesn't hurt anything. Should come off with a petroleum based solvent and elbow grease.

Dog Pilot is correct we used to use it on helicopters transmissions and gear boxes when operating on ships at sea for corrosion proofing.

I think he might be talking about the stuff that looks like it was painted on with a brush for sound deadening. I have it on my 54 model 180 and it is not 100% coverage---just the middle of each panel or joint. It is rock hard but I got rid of some by carefully picking/ slicing with a knife and scotch brite and thinner. Probably lucky I didn't die from the fumes many years ago.

180Marty wrote:I think he might be talking about the stuff that looks like it was painted on with a brush for sound deadening. I have it on my 54 model 180 and it is not 100% coverage---just the middle of each panel or joint. It is rock hard but I got rid of some by carefully picking/ slicing with a knife and scotch brite and thinner. Probably lucky I didn't die from the fumes many years ago.

That's the stuff I speak of. It is probably .015 - .025 inches thick in spots. It is clear of all bulkhead and stringer joints.

Congratulations! You are the proud owner of Disgusto-Crap brand multi-purpose annoyant.

Disgtusto-Crap is the world's most feared brand of annoyant substance, and works particularly well with aged fiberglass insulation to create a truly nightmarish experience for aircraft restoration and maintenance personnel.

When your airframe manufacturing department chooses Disgusto-Crap, you can be confident that you're sending a message 50 years into the future that you really care about making things messy, difficult, and irritating to the respiratory system.

Disgusto-Crap can be applied easily with a brush or spray equipment in minutes, but being a premium quality annoyant it takes hours to remove. Although originally sold to airframe manufacturers as a sound-reducing material, make no mistake... Disgusto-Crap eventually increases the sound level inside the aircraft from maintenance personnel trying to remove it, as they curse and scream in agony, disoriented on solvent fumes and banging their heads.

And remember, Disgusto-Crap is a "green" product! A couple of hours inside a fuselage with the required MEK solvent will result in a green skin tone, and an eco-friendly green tint to the urine as internal organs begin to decay.

Call 1-800-BAD-GOOP today, and give some poor airframe restorer fits tomorrow !

EZFlap wrote:Congratulations! You are the proud owner of Disgusto-Crap brand multi-purpose annoyant.

Disgtusto-Crap is the world's most feared brand of annoyant substance, and works particularly well with aged fiberglass insulation to create a truly nightmarish experience for aircraft restoration and maintenance personnel.

When your airframe manufacturing department chooses Disgusto-Crap, you can be confident that you're sending a message 50 years into the future that you really care about making things messy, difficult, and irritating to the respiratory system.

Disgusto-Crap can be applied easily with a brush or spray equipment in minutes, but being a premium quality annoyant it takes hours to remove. Although originally sold to airframe manufacturers as a sound-reducing material, make no mistake... Disgusto-Crap eventually increases the sound level inside the aircraft from maintenance personnel trying to remove it, as they curse and scream in agony, disoriented on solvent fumes and banging their heads.

And remember, Disgusto-Crap is a "green" product! A couple of hours inside a fuselage with the required MEK solvent will result in a green skin tone, and an eco-friendly green tint to the urine as internal organs begin to decay.

Call 1-800-BAD-GOOP today, and give some poor airframe restorer fits tomorrow !

You also write commercials, don't you? LOL

58Skylane wrote:
You also write commercials, don't you? LOL

No commercials, I just sell termites to wooden Indians:
http://www.grantstar.net/pdf/home/Oh%20 ... r%20wm.pdf

...and sell ice to Eskimos:
http://www.grantstar.net/pdf/sales/Abso ... %20Ice.pdf

Starting a project soon to sell water to a fish, but haven't written that one yet

This stuff infects every nook and cranny of my plane.

But forget about MEK- regular kerosene or a light naptha does the job, and while they take slightly longer to soften and dissolve things, they actually do the job better since they don't evaporate much, and stay on the area. You can wear a regular organic respirator, and it will pretty much last forever instead of get loaded up with the more volatile solvents. After I wipe off the cruddola with the kerosene, I use Mr. Clean and water to get rid of the residue. No muss, no fuss, no kerosene smell.

Aromatic solvents work quite a bit faster, but if you value your chromosomes and look forward to retaining control over your basic bodily functions well into old age, you might consider this alternative.

A few months ago I detected a little corrosion under some of the stuff on the mid skin on the right side across from the baggage door. I coated it liberally with ACF-50. I should see if it has softened the brown stuff any.