A few slow, basic facts: grass grows, paint dries and Sherwin-Williams (SHW) shares rise. The stock climbed 43% last year, as weak natural gas prices cut the paint-maker’s raw materials costs. The company expects sales growth of 7% to 9% this year. Analysts’ consensus forecast calls for a 23% EPS gain. Sherwin-Williams mainstays are architectural coatings: paint, primers, sealers and wood treatments.