You spent hours choosing the perfect paint color and covered every wall with care. But years later, a touch-up is needed—and you can’t remember if the shade of green was Phantom Mist or Dinner Mint.

PPG Industries Inc. ( PPG) has started providing 10-by-10-inch paper color samples of 10 popular Duranar coatings on its web portal, 'requestppg.com.' This was done in order to assist designers and ...