YES IT DOES!!

Yesterday on my ride,at mile 22 of 40, I hear a quick, loud, pssssst!
I can feel that the tire still has some air in it and I finish my climb, about 1/2 mile. I stop and give the tire a squeeze. It can't have more than about 20-30 psi in it. The Slime sealed it and I could still ride it (tubular). I decided to ride it further just to see what would happen.

After about 4-5 miles it still had the same amount of psi. I decided to give it a shot of co2, because the 15-20 mph wind combined with the tire situation was really sucking.
It took the co2 with out any leakage and I finished my ride with out problem.

It's still holding today. I think I will ride this tire on my shorter, high intensity rides this week to see what happens. I'll be close enough to home it won't be a problem.

which sealant were you using?

My training tires have so much slime in them that I don't even know when I get a puncture. I have to take them off after a ride and look for slime in the rim to know if they punctured. It makes the wheels heavy though, so I don't use it for racing. My tubulars have a small amount of tufo sealant in them.

As far as mileage since the last time I have had to fix a flat, I'd say two thousand. That was before I put the slime in.

i use slime on my mtb commuter. but i would never put that stuff into a road tire. psi is to high, slime is known the cause valves to pop, moreso at high speeds in corners. its dangerous and makes a mess. atleast for clinchers, dunno about tublars.

my mtb had a 1 inch nail in the rear tire, and 4 other punctures, all it had was a slow leek with slime, that required pumping every two weeks. i got tired of pumping it up and found the punctures on day, but i road like this for 3months or so.

This one.
https://www.slime.com/product_82_Tube_Sealant.html

Do you have any documentation to back this up?

I'v been using it for several years with no problem, in clinchers and tubulars.

I would also like to see proof of these claims. Valve stem failure happens in non-slime tubes as well (It happened to me this year on four consecutive Specialized tubes without slime.) I haven't had a problem with Conti's that I have injected slime into.

No problems with valve stem failure in my Slimes at 125 PSI. However, the slime won't hold 125 PSI with a puncture; it will deflate to about 80 PSI and hold. I know this b/c it has happened a couple of time; the tire will deflate a bit with a puncture, and I will stop and try and fill it up more. If I get over 80 in there it will rupture the puncture until about 80 PSI or so, and then hold. 80 PSI is more then enough to get home on.

Good to know the stuff actually works. I did some graphic design and packaging design for them years ago and they sent me all kinds of product but I never used any of it. Maybe I'll dig through the garage for it and put some in the mountain bike tires.