Wilwood calipers leaking at fittings

[redfire69]

Anyone know how to stop Wilwood calipers leaking at the NPT fittings? I've tightened one down to point of breaking and it's still leaking during air up testing (low PSI). Not sure if Teflon tape or Permatex hydraulic sealant is the right approach. Again these are newer 1/8-27 NPT fittings on their 4 and 6 piston calipers. Looks like they used some type of sealant on the bleeder screw bases....

Thanks in advance...Ron