ink for stamping rubber

[302moz]

What is the best ink for stamping rubber hose?Purchased an ink pad from a vendor and it comes off real easy. Anyone? thanks John

[roeville]

<span style="font-size: 14pt">This is what I use. Its lasted several years without wiping off.</span>

http://i630.photobucket.com/albums/uu27/roeville/IMG_2603_zpsarxnkecf.jpg