Talk:Magic penetration/@comment-68.0.139.94-20120417051505/@comment-4087140-20120417063343

Percent penetration stacks multiplicatively, so it can never actually reach 100%. For example, if you had three different 50% penetration effects, it would go 50% &rarr; 75% &rarr; 87.5%.

So no, there is no cap, but you can also never reach 100%.