10/22/2025
We have been busy on a J3C 85 project that was to be just a recover. When we got the plane stripped we found that every tube in the fuselage was corroded with deep pits. The previous restoration people had tried to weld some of the pits that were through the tubes while filling the rest with Rand o plate epoxy and then painted black over that. There were several unapproved repairs as well. I did not expect that nor the right rear spar being cracked and all the steel hardware in the right wing having deep rust pits. Many broken ribs, and on the landing gear having two different bungee struts.
We replaced the fuselage with a 4130N by Univair. And replaced all the steel hardware.
The only piece we have left in the spray booth is the fuselage which is ready for its final topcoat. 80% of this project is new.
Poly fiber 1 brush coat, 2 brush coats sprayed, 4 silver cross coats, 2 white coats and 3 coats of OEM J3 Cub Yellow.
Poly tone on the fabric and polyfiber MK II catalyised enamel on the metal parts.
I should have added the MK II comes as a kit with paint, catalyst, reducer and flattener to cut the gloss down to the same as the PolyTone on the fabric. It is made from the same color pallet as the PolyTone and truly matches.
Mark II notes:
Guys you do not have to use Aerothane on the metal anymore. The only thing I found out and it took a call to consolidated to find out that the 20 minutes of bind time on the label is way off. Bob said the molecules are so big the combining time should reall be more like 1 hour. One positive is that i have had left over MK II in the freezer for 2 months and once left to warm to room temperature it sprays and dries just like freshly mixed. Think of it like the old DuPont Centauri enamel with catalyst. The other benifit is it does not contain isocyanates, so a Niosh mask is all you need. No pumped air to a mask is required.