Irvine-based specialty coatings supplier Deft Inc. has agreed to be acquired by PPG Industries Inc. in Pittsburgh.

The deal, on undisclosed terms, calls for PPG to acquire certain assets of privately held Deft, which makes primers and other coatings for the aviation industry, with smaller lines for the architectural and industrial segments and wood finishes for the retail market.

75-year old Deft has about 140 employees.

Publicly held PPG also specializes in specialty coatings, with products for the auto industry a main line of business. It had $15.2 billion in revenue last year.