Source of Cloth Welting

[AYooperA]

Pulled up old posts regarding welting and see Third Gen had supplied. Still out of stock. Anyone have any luck sourcing elsewhere? Finishing up metalwork on car and tank will be going back in. Also, anyone have safe ballpark of feet required for tank/ cowl and fenders for a ‘29. Alternate welting looks too large diameter and a glossy plastic look.

[rotorwrench]

Third Gen took up the Ford Bolts inventory and that was the only supplier of authentic type pyroxylin coated welt. A person would likely have to make it themselves if no one else does. I think Roy Nacewicz was getting what is called book cloth which resembles the old faux leather that Ford used but has no embossed design pattern on it. It could be sewn with a welt cord on a walking foot machine with the proper size welt foot.

This "book cloth" is basically just like the dope & fabric skin of an old airplane design. Pyroxylin used a little different formula of dope than the cellulose nitrate stuff. I don't know if they used cotton or linen fabric but linen is a bit stronger.

[Gary Karr]

Try Classtique. Mike was making welting a year ago.

[BRENT in 10-uh-C]

I was trying to make the correct welt when the Driscolls purchased Roy's holdings. The assured me they were going to start reproducing it again so I kinda tabled the project.

Here is where I was with it. I found a source for the twisted paper core, but I have not been able to find the proper material.


I had obtained the M-2526 M-specs for the covering, but have not found that material. The irony is there was actually several differences in the welt throughout the production timeline. The M-specs had a revision on 08/30/1928 that said; Change fabric from 1.05 Sateen weighing 9.5 oz sq yard to 1.30 Sateen weighing 7.71 oz sq. yd.

The 2nd(??) revision list the following dated 01-16-28 as leather. Here is the verbiage from the M-Spec.

__Patent Leather.__

The material desired is a pyroxylin coated fabric, having an unembossed patent leather finish.

1. Color:
The color and degree of finish shall match that of our standard sample filed in our Engineering Laboratory files.

2. Composition:
The material is composed of a coat of pyroxylin applied uniformly to 1.05 Sateen conforming to M-2530

3. Width:
The width of this material shall be 50 inches minimum between selvage edges.

4. Weight:
The minimum weight of this material shall be 15 oz per square yard.

5. Cotton Fabric:
The cotton fabric used in this material shall conform to our specification M-2530. It shall have a minimum weight of 9.5 ounces per square yard.

6. Pyroxylin Coating:
(a) This coating shall have a minimum weight of 5.5 ounces per square yard.
(b) It shall not spew oil on heating to 110°C for 4 hours.
(c) It shall stand a light test conformable with that of the approved sample in the Engineering Laboratory file.
(d) It shall adhere firmly to the fabric and be free from pinholes and other mechanical defects.



Then, in one drawing I have it even calls for a cork sheeting to be sandwiched between the 1/16" paper core and the Patent Leather. So I guess reproducing this all depends on how accurately or authentically we want to reproduce it.

.

[AYooperA]

Gary, Thanks I will contact Classtique about his welting. Brent TN, those material specs are really something. Your experience & knowledge of the A is much appreciated. Guess I would be happy with something close to the correct diameter but in the end I will take what I get get to finish.
Side note: Found it interesting that they used top material scraps to pad the stanchions in the cowl mounts. Welding up windwing holes put there for JC Whitney (Warshasky) brackets years ago. Done with windwings, haven’t used in years, just the gouges are on top of the doors remain. John

[Hitman]

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Originally Posted by BRENT in 10-uh-C

I was trying to make the correct welt when the Driscolls purchased Roy's holdings. The assured me they were going to start reproducing it again so I kinda tabled the project.

They had been making it for awhile, and I know fairly recently. They do make it to order, I'd try calling even though the website says out of stock.