Gunsmith Tools & SuppliesBirchwood CaseySold by Brownells

Birchwood Casey

Blue & Rust Remover

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Removes Old

Blue and rust before rebluing

Harmless Metal

During use

Leaves Rust-inhibiting

Film for protection

Helps Protect

Metal up to 72 hours

3 Fl.

Oz. (89 ml) net contents

$4.77
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SKU: 167006100

Overview

Designed for firearm maintenance and refinishing prep, this solution removes old blue and rust before rebluing. It is described as harmless to metal and leaves a rust-inhibiting film that helps protect the surface for up to 72 hours. The compact 3 fl. oz. size is suited to shop use or keeping on hand for occasional touch-up work.

Why Hunters Choose the Birchwood Casey

Removes Old

Blue and rust before rebluing

Harmless Metal

During use

Leaves Rust-inhibiting

Film for added protection

Protection Metal

Up to 72 hours

Compact 3

Fl. oz. net contents for

Key Features

  • Removes old blue and rust before rebluing
  • Harmless to metal during use
  • Leaves a rust-inhibiting film for protection
  • Helps protect metal up to 72 hours
  • 3 fl. oz. (89 ml) net contents
  • Birchwood Casey product

Best Used For

  • Hunters preparing metal surfaces for rebluing before a refinishing project
  • Users needing to remove old blue and rust from firearm metal without harming it
  • Shop work where a temporary rust-inhibiting film is useful during short-term handling
  • Owners maintaining metal parts that need a clean surface before finishing or touch-up

Specifications

Harmless To MetalYes
Net Contents3 fl. oz. (89 ml)
Protection Durationup to 72 hours
Removes Old Blue And RustYes
Rust Inhibiting FilmYes

Pros

  • Removes old blue and rust before rebluing
  • Harmless to metal during use
  • Leaves a rust-inhibiting film for added protection
  • Provides protection for metal up to 72 hours
  • Compact 3 fl. oz. net contents for bench or field use

Considerations & Trade-offs

  • Designed for removing old blue and rust before rebluing, so it is a prep product rather than a standalone finish or protectant.
  • The rust-inhibiting film is temporary, with protection stated up to 72 hours, so treated metal still needs follow-up care.
  • Net contents are 3 fl. oz. (89 ml), which may be limited for larger projects or repeated use.
  • The product description does not specify application method or compatibility details, so users should verify suitability for their specific metalwork before use.

Suggested Comparisons

  • Gun cleaning and maintenance chemicals
  • Rust removers
  • Bluing and refinishing supplies
  • Metal protectants and preservatives

Suggested Accessories

  • Cleaning cloths
  • Gun cleaning patches
  • Protective gloves
  • Metal finishing supplies

Frequently Asked Questions

What is this product used for on firearms or metal parts?

It is used to remove old blue and rust before rebluing.

Will it damage metal surfaces?

The product description says it is harmless to metal.

Does it leave any protection after use?

Yes. It provides a rust-inhibiting film that protects metal for up to 72 hours.

How much product is included?

The listed net contents are 3 fl. oz. (89 ml).

Who makes this product?

The manufacturer listed is Birchwood Casey.