. spending related to modernization and productivity improvements , expansion of existing businesses and environmental control projects was $ 411 million , $ 390 million and $ 307 million in 2012 , 2011 , and 2010 , respectively , and is expected to be in the range of $ 350-$ 450 million during 2013 . capital spending , excluding acquisitions , as a percentage of sales was 2.7% ( 2.7 % ) , 2.6% ( 2.6 % ) and 2.3% ( 2.3 % ) in 2012 , 2011 and 2010 , respectively