West Systems 423 Graphite Powder

Add to Wishlist
Part# 09-00315
MFR Model# 323659


423 Graphite Powder is a fine black powder that can be mixed with West System 105 Epoxy Resin to produce a low-friction exterior coating with increased durability and abrasion resistance. Commonly used as a bearing surface and as a coating on rudders and centerboards. Cures to black color.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


  • Color: Black
  • Type: Filler


What I use it for is a coating on the bottom of my rc racing boat. I mix it into automotive clear coat and spray it on the surface of the boat to help it slide across the water easier. I sand it with fine sandpaper after it’s cured out. Works great.

Pat G
April 2, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is the graphite powder colorless? Can it be mixed with a automotive clear coat and sprayed from a paint gun?

The graphite powder is black in color. It is a very fine filler, and is added to epoxies and resin to create a slurry to fill pin holes on composite surfaces.

Q: What is the particle mesh size of West Systems graphite powder? I am looking for graphite lubricant powder but there are variable grain sizes based on the mesh used to filter it and cannot find that info.

This will have a 325 mesh. Our supplier has not used this as a lubricant but they do not see any issues with that.

View in Catalog

View Image View in Catalog