Section 211.1915  Elevated-Temperature Skydrol-Resistant Commercial Primer

"Elevated-temperature Skydrol-resistant commercial primer" means a primer applied primarily to commercial aircraft (or commercial aircraft adapted for military use) that must withstand immersion in phosphate-ester hydraulic fluid (Skydrol 500b or equivalent) at 150 °F or higher for at least 1,000 hours.

(Source:  Added at 45 Ill. Reg. 3509, effective March 4, 2021)