Sherwin-Williams’ loss of the paint business at Walmart didn’t affect its fourth quarter results too bad, but will represent a nearly $100 million headwind for the coming year. The company reported fourth-quarter net income of nearly $72.9 million, up 11.6% from $65.3 million on sales that advanced nearly 19% to $1.9 billion during the quarter ended Dec. 31, 2010. Sales in the consumer group, which includes such retailers as Walmart, increased 6.2% to $255 million in the quarter.