BraycoŽ Micronic 883 is a rust-inhibited fire resistant synthetic ISO viscosity Grade 15 hydraulic fluid for aircraft, ordnance and industrial use. It contains no viscosity index improvers and therefore, unlike conventional hydraulic fluids, it is not subject to polymeric breakdown. This product is compatible with MIL-PRF-5606H and MIL-PRF-6083F fluids in all proportions. BraycoŽ Micronic 883 is available in two types. Type I is undyed for use in ground equipment, such as tanks. Type II is dyed red for use in aerospace test stands and not intended for ground equipment use.