Poly(dimethylsiloxane) stamps for microcontact printing with polar inks, which no longer need to be reactivated after each printing step, are revealed. The silicone surface is modified by linking a hydrophilic polyethylene glycol chain to SiOH groups created on the surface of the stamp. While stamps that are oxidized conventionally become useless 3 h after their preparation (Figure top), the PEG-modified stamps can still print high-quality patterns after 20 days (Figure bottom).