indestructible advanced coatings

SMOOTH SURFACE FINISH SACRIFICIAL ALUMINIUM COATING

IP Code No - IP9442

Product Description -

A product similar to Ipcote IP9183 but with a smoother surface finish. With a typically sprayed finish off approximately 20 micro inches, this product presents little resistance to air flow, or roughness for carbon and other deposits to adhere to. This material is also capable of being polished to finer finishes than the IP9183 and finishes of less than 10 micron inches have been achieved. A very smooth surface such as this is necessary to reduce friction and to enhance efficiency in aero engines.

This product has been specifically developed as part of a system replacement and an alternative to 5380 DP. Used normally in conjunction with IP9444 (Smoothseal) the two products are designed to give similar appearance and surface finish.

Approvals/References/Specs -

CPW88 , (MSRR9140 under review) Possible alternative for 5375 and 5380 DP systems.
IP9183 - Ipcote / IP9184 Ipseal (Khaki and Green) / IP9444 Smoothseal (Currently under development)


Goodrich Actuation Systems 914-034-043

Performance -

The material passes the performance test for MSRR 9140, tests include:

  • 1000 Hours at 600ºC (1115ºF) dry heat
  • 100 Hours at 150ºC (300ºF) in ester lubricants
  • 3 Hours at 70ºC (160°F) in Skydrol
  • 1000 Hours continuous salt spray (It actually completes in excess of 2500 hours for a 50 micron, 2 thou film thickness coat)
  • 10 Cycle high heat humidity, salt spay. 1 Cycle comprises 20 hours at 450ºC (840ºF), 2 hours in an ASTM.B117 salt spray cabinet and 2 hours in high 100% humidity cabinet. 10 Cycles are consecutive to each other.

Application -

Spray IP9442 until a wet coat is seen. Flash off for 15 minutes or until a matt grey finish is obtained. Apply second coat to the same criteria and a further 15 minutes flash off. Then 1 hour at 190ºC (375°F). Then according to requirement if you are working with different aero engine companies, final stoving as dictated. Rolls Royce may specify 1 hour at 560°C (1050°F) in addition, P & W may stipulate 4 hours at 540°C (1000°F), or 5 hours at 515°C (960°F).

Alternatively another method for making the product electrically conductive is to bead peen the product having done the final stove at 350ºC (660°F) followed by bead peening with 120-220 Silica Grit.

Physical Properties -

Mixing Ratio

One part product

Thinner

Ready for Use. Apply to IP if required

Supply Viscosity

27+/- 2 Seconds B3 Cup at 201C. Approximately 16 - 18 Secs ZAHN2 Cup

Colour

Aluminium / Matt Grey

Gloss Level

Matt at High Temperature - Semi-Gloss After Peening

Film Thickness

10 - 25 microns

Flash Point/Class/UN No

Non Hazardous

Pack Size

1 and 5 Litre Plastic Containers (For our US customer - 1 US Gallon = 3.785 Litres)

Shelf Life

6 months

Health & Safety

Before use please request, our latest Health and Safety Data Sheet