This video by Brownells' "Smyth Busters" (Caleb Savant and Steve Ostrem) directly addresses the question of whether cold bluing is as durable as traditional hot bluing. The experts definitively state that cold bluing is NOT as good, explaining that the high heat in hot bluing creates a more durable black oxide layer. Cold bluing, applied at room temperature, is a surface-level chemical reaction that wears off easily and is primarily recommended for touching up minor imperfections rather than finishing an entire firearm. They mention specific high-quality cold blue products like Oxpho-Blue®, Formula 44/40®, and Dicropan T-4® as suitable for these touch-up applications.
This YouTube video, a follow-up to a previous "DIY Gunsmithing Tips & Tricks" episode, features host Brent T. Wheat discussing firearm refinishing with Roy Huntington. The discussion covers various methods like hot blue, cold blue, spray-on, water-dipped, and Parkerized finishes, with Roy sharing his expertise and secrets for achieving desired results. The video also promotes print and digital copies of American Handgunner's DIY Guns Special Edition and subscription to GUNS Magazine.
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