#65 | DIY Gun Refinishing

Published on January 29, 2021
Duration: 35:55

This guide details a DIY method for cold bluing firearms, emphasizing proper surface preparation and application techniques. Key steps include degreasing, warming the metal, applying multiple coats of bluing solution, and blending with 4-0 steel wool. The process aims to achieve a presentable finish for touch-ups or full refinishing on less valuable firearms.

Quick Summary

Achieving a good DIY cold bluing finish requires meticulous surface preparation, including polishing and degreasing. Warm the metal before applying multiple coats of bluing solution, then blend with 4-0 steel wool. A final oil rub with steel wool enhances and protects the finish. This method is best for touch-ups or refinishing less valuable firearms.

Chapters

  1. 00:00Introduction to DIY Gun Refinishing
  2. 03:08Understanding Hot vs. Cold Bluing
  3. 04:00Hot Bluing Process Explained
  4. 04:45History of Brownells Bluing Solution
  5. 05:45Cold Bluing: Formula 44/40 and Beyond
  6. 07:01Cold Blue Pens for Touch-Ups
  7. 07:32Cold Blue vs. Hot Blue: Quality Comparison
  8. 08:31Surface Preparation for Cold Bluing
  9. 09:25Key Secrets to Cold Bluing Success
  10. 10:01Applying Cold Bluing Solution
  11. 10:40Blending with 4-0 Steel Wool
  12. 11:52Final Oil Rub for Bluing
  13. 13:03Touch-Up Bluing on Revolver Flutes
  14. 13:51Caution: Reactive Cold Bluing Solutions
  15. 14:53Cold Blue Pens for Screw Heads
  16. 15:58Heat Bluing for Screws
  17. 18:05Caution: Ensure Metal is Steel
  18. 18:30Aluma Black for Aluminum
  19. 19:15Sharpie Pens for Sight Touch-Ups
  20. 20:05Spray-On Coatings: Cerakote and Duralar
  21. 20:42DIY Challenges with Cerakote
  22. 21:12Duralar Finish Properties
  23. 22:24Robar Roguard and Metal Plating
  24. 23:16Lower Temperature Spray-On Coatings
  25. 24:30Oven Fumes and Ventilation Tips
  26. 25:20DIY Spray-On Coating Kits
  27. 26:28Water Dipping (Hydrographics)
  28. 27:49Rattle Can Camouflage Techniques
  29. 28:31Parkerizing: Professional vs. DIY
  30. 29:00DIY Parkerizing Process
  31. 30:03Appearance of Parkerizing
  32. 31:03Why Parkerizing Holds Oil
  33. 31:40Due Diligence in DIY Gunsmithing
  34. 32:10Getting Started with DIY Kits
  35. 33:02Evolution of Firearm Bluing Colors
  36. 33:51Modern High-End Bluing (Turnbull)

Frequently Asked Questions

What is the key to a successful DIY cold bluing job on a firearm?

The key to successful DIY cold bluing is meticulous surface preparation, including proper polishing and thorough degreasing. Warming the metal before application and using multiple thin coats, followed by careful blending with 4-0 steel wool and a final oil rub, are also crucial steps for achieving a good finish.

Can I use cold bluing to cover scratches and rust pits on my gun?

No, cold bluing is a surface finish that does not fill or cover imperfections like scratches or rust pits. The final appearance of the bluing will reflect the underlying metal's condition, so the surface must be polished to your desired finish before applying the bluing solution.

What are the main differences between hot bluing and cold bluing for firearms?

Hot bluing uses caustic, high-temperature chemicals and is a more complex, professional process typically done by gunsmiths. Cold bluing uses less dangerous chemicals at room temperature, making it more accessible for DIYers, though generally less durable and requiring more careful application for good results.

Are there any safety concerns when using cold bluing solutions with steel wool?

Yes, some cold bluing solutions can react with steel wool to generate heat, potentially causing burns. It's advisable to use caution, ensure good ventilation, and consider using bronze wool as a safer alternative if you notice excessive heat generation.

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