Boosted by growth in its offshore markets, the acquisition of Dutch paints maker SigmaKalon, and price increases, PPG Industries' second-quarter sales jumped by 42 percent to $4.5 billion.

The coatings, glass and chemicals maker said net income rose slightly to $250 million, or $1.51 per share, from $249 million, or $1.50 per share in the year-ago quarter.

PPG bought SigmaKalon in January for $3 billion -- the largest acquisition in the company's history.

Chairman Charles Bunch said PPG is implementing price increases in commodity chemicals and other businesses to help offset inflationary pressures.