NL's Body filler #15

RicinYakima

High Steppes of Eastern Washington
Any of you old timers know the composition of N. ational L. ead company's auto body filler #15? It appears to test softer than 60/40 with the cabin tree tester. Thanks for any knowledge you throw this way! Ric
 

Ian

Notorious member
No idea on that one, but most of the gradients which I'm familiar off the top of my head ranged between 17-21% tin to give a range of mush phases, so I consider it all pretty close to 20:1 unless testing shows otherwise. The stuff Eastwood sells is 30% tin, but it's more of a seam solder than a true, trowel-on filler.
 

fiver

Well-Known Member
they used different amounts of tin to hold a different slush stage to work on different panels.
the more vertical the panel the more lead so more heat could be used without the alloy running on the floor.
the flatter the surface the more tin used so it would flow out smoother.
from what I remember it went from like 5% up to 30% tin, and come in square, round, rectangle, and star shaped rods.
airc the round rods were the lowest tin amount and either the rectangle or the star shape the highest.
and unfortunately it could vary somewhat from maker to maker.

I used up everything but the round stuff I had here long ago.
 

RicinYakima

High Steppes of Eastern Washington
Thanks fiver. The #15 is small square sticks (got 5 pounds worth) also five pounds of marked 70/30 with a few odd round sticks.
 

fiver

Well-Known Member
sorry I couldn't narrow it down any further.
there is some info on national lead out there in googleland.
they were a big company and put out all kinds of stuff.
 

RicinYakima

High Steppes of Eastern Washington
I can find lots of stuff on the company, but it seems hard to find their product information after they lost the $120 million lawsuit.