Originally Posted by
Redbullet
One of them was schwalbe doc blue.
But it was still NFG. Why such high pressures anyway?
I use Muc-off sealant which has dealt with a 4 mm cut at around 70 psi. That was about the limit and needed a Dynaplug to make sure it stayed sealed. But it would seal a 0.5 mm hole easily.
Maybe the hole is a lot bigger than you think?