Latex inner tubes updated

[Retrorockit]

I always use metal automotive stem caps on Schraders. They seal with an O ring and you can hear a puff if the stem is leaking. Some for trucks have a stem core tool on the end. I destroyed a TPU looking for a slow leak. Ballooned it out trying to make the leak bigger. I have 2 more Aircomps on the way. I may try Effetto Mariposa's other Latex sealant Vegelatex. I'm getting quite a collection of sealants. Orange Seal, Caffelatex, Rene HERSE tubeless for their tires. Now I'll need vegelatex for the Latex tubes,and RH TPU sealant and TPU tubes if that doesn't work.
Maybe the RH sealant in Latex tubes is the way. It must be compatible with the cement in the tires.... I have another Aircomp here already, and the sealant.

 

[Retrorockit]

I broke down the tire today. No sealant leakage. The tube was deformed at the spoke holes next to the valve stem. 2 layers of plastic tape on one side of the valve to avoid 2x layers at the stem hole., one layer on the other. The tire was dry inside, no leaked sealant to clean up. But also no liquid sealant recovered from inside the tube. 40ml used. This is just 1 week in. So it looks like so far this project is a failure. Now that TPU sealant is available (Only Rene HERSE, asfaik) I would say just do that for sealed tubes vs. tubeless. On my Ebike where weight doesn't matter Caffelatex in Butyl tubes has worked great. Doing it in Latex looks like a big PITA. I have more Latex tubes, and other sealant, so I will probably press on further just to keep the bike rolling as much as anything else. Maybe I'll stick a butyl tube in for now until I hear more from RH, and Effetto Mariposa. EM is good about replying. RH can be slow.

 

[Retrorockit]

This is the glue issue I'm having. Since gravel racing tires don't have reflective sidewalls, and I'm running disc brakes with the UB (universal brake) '04 Mavic Crossrides I used the brake surface for reflective tape. 24 Bladed spokes, and actual eyelets on the original version.

 

[Retrorockit]

OK one more time. the Rene HERSE TPU tube in the front tire is just sitting there laughing at all of this. Polished Metal stem, removable core. Efetto Mariposa metal stem cap with core removal fitting. But I screwed that up with latex sealant too... I want tubes, and I want sealant.
Sooooo- Rene HERSE Latex Tubeless sealant. Water/latex/walnut shells. New Michelin Aircomp Latex tube. Stem drilled out for Park TSI-1 sealant injector tube. Yes they changed the hole in the Schrader valve. I have to check them now and drill to use that tool. (another reason for Presta?).
So the tire's cleaned up and dry inside. Guess where the water ends up when the Latex tube leaks down? But i'm gonna do this anyway. I don't feel like doing the tubeless sealant dance, and the RH sealant doesn't foam up like the Caffelatex. So I inject it into the empty tube, and squish it all around first. An extra layer of plastic tape over the first spoke hole next to the stem (thanx frankenorange). The first tube was getting squeezed down there for some reason. Stick it back together. the Extralight beads seated at 40psi, which is a good number for this bike so no loss of sealant due to bleeding air out.
I'll probably get some TPU tubes and RH TPU sealant at some point. But this is what I have ,here and now. I'm glad there seems to be only one or two people watching this fiasco!
My best guess is the sealant will dry out because the water soaks right through the latex tube. I put 80ml in there.
The glue in the previous photo cleaned off with some medical adhesive removal pads.

 

[bikeworkshop]

You may end up back with choosing between butyl or tubeless.
Tpu Tubes lose a lot of friends over time.