PPG (Stand D79) is offering samples of its Pro-Seal 815M aerospace sealant spray slated to be rolled out next month. The clear liquid is sprayed onto freshly applied polysulfide aerospace sealant to improve aesthetics and cut surface cure time to as little as two hours, PPG explained.

The spray, which comes ready to use in a non-aerosol recyclable pump bottle, is applied in a light mist onto wet sealant. The product helps break the surface tension of the wet sealant, allowing for easier smoothing and fairing to achieve final required dimensions and optimal appearance, PPG said.

It cures the surface of the sealant to a tack-free state in two to three hours at 25 degrees Celsius (77 degrees Fahrenheit), compared with up to 40 hours for untreated sealant to reach the same condition.

“Virtually every aircraft requires application of sealant for environmental boundary isolation, from integral fuel tanks to the joints of the entire fuselage structure," explained Bill Keller, PPG global market segment manager, aerospace sealants. Pro-Seal 815M helps customers reduce sealing time without resorting to solvents that may not be approved for aerospace applications, he added.

Customers can request samples of PPG Pro-Seal 815M aerospace sealant spray through the company's website.