One day after announcing an acquisition to expand in Central America, PPG Industries (NYSE: PPG) says it is buying Cuming Microwave Corp.

Avon, Massachusetts-based Cuming Microwave supplies specialty coatings and materials that absorb microwaves and radio waves. PPG is also buying Cuming subsidiary, Cuming-Lehman Chambers Inc., a Chambersburg, Pennsylvania-based business that makes rooms lined with absorbent material, sometimes used for testing or measuring. Terms of the transaction were not disclosed.

PPG says the deal expands its military and aerospace product portfolio. PPG's aerospace operations include windshield, window and canopies offerings, as well as aerospace coatings, sealants and packaging.

On June 2, PPG announced the acquisition of Consorcio Latinoamericano, which operates a network of 57 paint stores in Central America. The company, a serial acquirer, won Mergers & Acquisitions M&A Mid-Market Strategy Buyer of the Year award for 2014 after making a handful of acquisitions.

For more on M&A in the coatings space, see Innovations in Coatings and Sealants Spark M&A