APV Engineered Coatings offers masking procedures and compounds to protect alloy/superalloy parts and assemblies from overcoating during high-temperature diffusion coating/processing.
The APV Maskant System has been long trusted in the gas turbine engine industry and can be used in diffusion coating for new or overhauled aero/jet engines and industrial engines.
The M-1/M-5/M-7/M-8/M-10 masking systems consist of dry powders, binders, and diluents. Slurry system components can be mixed at your location as required, or purchased ready-to-use. Several of the maskants can also be used dry, with no binders. All components of the system are tested chemically and metallurgically after processing and all masking materials are tested under actual coating conditions.
R.T.U. slurries can be incorporated into high-temperature coating masking systems (R.T.U. M-7/B-4, M-10/B-4, M-107/B-4) where diffusion coating processes are above 1500°F or incorporated into low-temperature coating masking system (R.T.U. M8/B-4) where diffusion coating processes are below 1500°F.