You must use a cleaning rod guide that uses o-rings, during the parkerization removal process. The provided solution will remove parkerization on the inside of the bore, as well as the outside if you spill any on the outside finish.
1. Use a chamber brush with a low speed drill to clean the chamber and throat of the firearm. This method will not work in the bore, as the rifling prevents the brush from contacting all of the parkerization stuck in the rifling grooves.
2. Clean bore with solvent and JB compound or equivalent. Run alternating wet and dry patches through the bore until they come out clean.
3. Clean bore with more patches soaked in acetone. This will remove oil and grease from the bore to allow the solution to directly attack the parkerization.
4. Clean the outside of the muzzle of the firearm, and tape a heavy plastic bag with a hole in it for the muzzle, over the muzzle using large amounts of tightly stretched electrical tape or the equivalent. Make sure the tape and bag covers everything where you don't want the finish removed. Tape another plastic bag over the muzzle to prevent the splatter of the parkerization removal solution when the cleaning brush exits the muzzle.
5. Use tape, plastic and/or furniture wax on the action/receiver to protect that finish as well.
6. Add at least 1 Table spoon of baking soda to a cup (8 oz) of distilled water. Heat to at least 110 F and stir to ensure the baking soda is dissolved. You will use this later to neutralize the park removal solution from the bore as well for any drips or spills.
7. Mount the firearm so that the muzzle is pointed down from horizontal by at least 15 degrees. You do not want to drip the solution into your action.
8. Wrap a cleaning patch on a brush, add enough of the cleaning solution so that the patch is visibly wet, but not in danger of dripping. Using short strokes of 2-3 inches, slowly work the brush up the bore to the muzzle. This should take a full 2 minutes.
9. Do not change the patch, add sufficient solution to re-wet the patch and brush combination, and repeat for a total of 3 times.
10. Using a new patch wetted with solution, use long strokes, 5-10" at a time, work your way down the barrel.
11. Then let the barrel soak.
12. Use the soak times guide (below)
13. Using a patch or mop soaked in baking soda solution, mop out the bore a least 5 times. You are neutralizing the parkerization removal solution. You may put the muzzle of the firearm in the baking soda solution and using a tight fitting patch, suck up that solution into the bore. This is optional, but does speed up the process of cleaning.
14. If your barrel has a gas port, make sure the baking soda solution flushes out that gas port and/or tube.
15. If you have dripped the parkerization removal solution anywhere on the gun, you can use the baking soda solution to neutralize any drips or spills.
16. Next, clean with a brush and conventional solvent until patches come out clean.
17. Clean with JB compound or equivalent.