Primarily here at EFR we use Cerakote to refinish firearms, Over time we have refined our process to achieve a good consistency between batches and a very low rejection rate ( where a part needs to be cleaned and re-coated ). Below we'll describe how we coat a firearm or part in H-Series Cerakote.
The Process starts with complete disassembly of the firearm. For an example on a 1911 we would strip the firearm down to a bare frame and slide, Removing all parts except for the grip screw bushings. They are left in to protect the fine threads from media blasting.
We are experienced in a wide variety of firearms, Each and every firearm in our gallery which has been cerakoted was completely disassembled at some point. We would only coat assembled firearms after a base coat was applied and the firearm is assembled when we are doing a camouflage or other pattern that needs to be aligned.
Next up we will take the parts that will be coated and degrease them using chemicals to remove any oils, gunpowder, or other residue. This helps extend the life of our blasting media and reduces the chance of oils causing adhesion problems with the coating.
After they've had a chance to dry off parts are then media blasted with Aluminum Oxide to rough up the surface of the material slightly. This is the recommended media to use and it gives the finish the best possible adhesion.
After blasting we again clean and degrease the parts. They are then hung on our racks for cerakote application.
Now we'll mix cerakote batches for each color we are doing. Then we'll start to spray the various parts. Once that's complete we allow the finish to sit for about 10 to 30 minutes before putting them into one of our cerakote ovens. The standing time is the flash period where the coating will dry slightly. By letting the coating flash it prevents any dust or debris from sticking to the finish when we move it into the oven.
We have a high temp oven we use only for metal coating, and another larger 2' x 4' x 6' oven used for metal and or polymers. Each oven was custom built and is setup to maintain correct temperatures for the baking process. For metals we use about 235 to 250 degrees, for polymers we use 175 to 200 degrees or less depending on the type of plastic. Baking times vary depending on the materials and desired finish.
After the parts have baked and cooled. We start the reassembly process, re-fitting parts as needed. On a Kimber we may need to lap the slide rails to allow the slide to fit back on the firearm, Similarly small parts may need minor refitting on occasion such as sights and safeties.
After assembly is complete we clean the firearm and photograph it before packaging it for return shipment or storing it until local pick-up. If you have any questions or concerns about the process and your firearm Contact Us!