PPG PR-1826 B-1/4 654 Semkit Aerospace Rapid Cure Fuel Tank Sealant

PPG PR-1826 B-1/4 654 is a two-part polysulfide-based aerospace fuel tank sealant packaged in a 1/4 US oz (103 mL) Semkit applicator bottle with a mixing rod and accelerator vial, as confirmed by the labels and packaging visible in the photos. The "B" designator indicates a gun-grade consistency (non-sag), the "1/4" denotes the 1/4 US oz unit size, "654" is the PPG color/class code, and the rapid-cure formulation (Class B) is designed to minimize aircraft ground time by delivering significantly faster tack-free and full-cure times compared to standard-cure PR-1826 grades. PR-1826 meets MIL-PRF-81733 and is approved for use in integral fuel tank sealing, faying surface sealing, and fastener sealing on commercial and military aircraft structures where resistance to aviation fuels (Jet-A, JP-4, JP-8), hydraulic fluids, and moisture is required. The Semkit packaging system keeps Part A (base) and Part B (accelerator/curative) separated until the internal vial is broken and the contents are hand-mixed at 40 strokes at 20 strokes/minute (or machine-mixed 1-1/4 minutes at 20 strokes/minute), as stated on the label; shelf life is 9 months from date of packaging when stored below 80°F. This unit is new, with a DOP of 05/26 and expiration date of 02/27 as visible on the label.

Product Specifications