Birchwood Casey Aluminum Black Touch-Up Pen – Cold Blue Repair

The Birchwood Casey Aluminum Black Touch-Up Pen applies a fast-drying, room-temperature blackening solution for quick repairs to worn or scratched aluminum surfaces on firearms. This pen-style applicator gives you precise control for spot touch-ups without disassembling the gun or heating parts, making it practical for field repairs or quick cosmetic restoration between range sessions.

The pen format dispenses a controlled amount of blackening compound through a felt tip, covering small areas like worn rail surfaces, scratched receivers, or handling marks on aluminum components. Works on aluminum alloys commonly used in AR-15 receivers, shotgun magazine tubes, and scope rings. Surface must be clean, dry, and free of oil for proper adhesion.

• Type: Cold blackening touch-up pen
• Compatible Metals: Aluminum and aluminum alloys
• Application: Room temperature, no heating required
• Applicator: Felt tip pen
• Use: Cosmetic repair of wear marks and scratches on aluminum firearm components