Inside Fender and Bumper Color

[JimVillers]

When I got my project 1967 911 #305119, it is apart and the inside of the fenders and inside of the bumpers are painted body color. From the pictures that I located on the site showed the chassis painted "chassis black" (wheel wells, trunk, engine compartment, cabin and bottom).

I assume that chassis black would be correct for the inside of the fenders and inside of the bumpers.

[buddeman]

Similar to Freddie's other thread, I found SEM "Trim Black" to be a fantastic product for all the chassis black areas. These should include as you point out wheel wells (front and rear), trunk, engine compartment and bottom. Research where the line should be where body meets bottom under door/jack area; as well nuances where the fender meets the trunk body about what stays black / body color.

Front/rear deck lids remain body color, except on the outside of the engine decklid - the recess where the engine grill goes gets black.

Majority of the cabin remains body color, save for black around the rear seat hinge posts, seat rail areas including e-brake, door outline (edge of door inward ~1" to where door panel attaches; brush marks a bonus), front-facing dash, front vents and under dash including front footwell. I may have forgotten a few spots.

Inside of bumpers (front and rear), as well as license plate valence panel remains body color. My front iron weights were hand painted black on the side not attached to the bumper, after they were installed (ie side attached to the bumper was bare metal). Chassis #305792 as reference.

I do recall seeing differing threads debating whether or not the front/rear turn signal housings on the body were black; ditto for the fuel tank filler on body (not flap). Will let you draw your own conclusion on those...

[JimVillers]

Patrick .... Exactly the information that I was looking for; thanks.

My black product of choice is POR Chassis Black. A different kind of paint that cures to a hard, chip resistant, solvent resistant coating. It might be a little closer to the semi-gloss than to a satin but it looked great on a 47 fire truck that I finished in the spring.

[304065]

Jim,

The Factory originally painted the shells with a thin white paint, then undercoated the floor pan, inside of the fenders and quarters, trunk and engine compartment with Teroson "schutz." You can see them using big 20 liter buckets of the stuff on the 356 videos. Body color was shot on the fenders, hood, roof, quarters and trunk lid. The bumpers got body color on both sides with no black or schutz on the inside-- we know this from looking at the factory workshop manual and the testimony of original owners on this BBS.

The big problem with the Teroson undercoat is that over time, water permeates through it and rusts the steel underneath. On an original SWB car, you can take a screwdriver and scratch it off, it flakes off like potato chips, leaving a patina of brown rusty steel underneath. The challenge for the restorer is to mechanically get that off and then seal the surface so it won't rust again. A lot of folks use PPG DPLF, which is an aggressive anticorrosion primer, black in color. Then schutz over that, then satin black over the schutz to seal it up.

So I would wonder, why the paint on your fenders and trunk? What's underneath, was somebody trying to stop the progression of rust? Or was it put over bare metal by somebody who didn't know that that area was supposed to be black?

[JimVillers]

304065 .... I understand you logic about "paint over rust". This project I think is a little different. It was "under restoration" for 25 years. I bought it totally apart and the story is that the fenders are new; they are finished painted with undercoat on the inside and the inside was also painted body color. I can tell at least one floorboard and an inner fender were replaced but the rest of the seams look original. Everything was painted body color, top, bottom, inside and out. I believe that the person was not aware of correct colors; it would have been cheaper and easier to spray chassis black than gloss polo red. The quality of the red paint in the engine compartment is excellent, consistent gloss without runs or orange peal.

I don't know what kind of undercoat was used, it can be chipped or and is a light gray color. The texture looks to be correct. The entire body shell was sand blasted; I found sand in the ashtray and in the steering column tube.