Joined: Aug 2009
Posts: 6,744
Likes: 5,365
From: Minneapolis
Bikes: 2022 Salsa Beargrease Carbon Deore 11, 2020 Salsa Warbird GRX 600, 2020 Canyon Ultimate CF SLX disc 9.0 Di2, 2020 Catrike Eola, 2016 Masi cxgr, 2011, Felt F3 Ltd, 2010 Trek 2.1, 2009 KHS Flite 220
As VegasJen said, just go tubeless.
But if you are riding a MTB on pavement and getting lots of flats, you might have problems other than puncture resistance. Are you sure these are mostly sharp-object punctures, rather than problems with your rims? And what kind of tires are you running now?