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Brownells

Formula 44/40A(R) Instant Gun Blue - Formula 44/40A(R) Cold Blue 2oz

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

Fast, Wipe-on,

Wipe-off application for quick cold

Original High-speed

Formula from the 44/40 cold-blue

Deep-penetrating Coloring

Action for a long-lasting finish

No Need

To soak or rub for

Easy Surface

Prep: clean and degrease before

$8.99
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SKU: 082440002

Overview

This cold blue is intended for quick touch-up work on external or internal metal parts when a fast, wipe-on, wipe-off application is preferred. It is described as an original high-speed formula with instant coloring action and deep penetration into the metal, making it suited to routine scratch repair and similar maintenance tasks. Surface prep is straightforward: clean and degrease the area, then apply it with a damp patch and wipe dry immediately. For hunters and shooters who want a simple maintenance product rather than a full refinishing process, it offers a compact 2 oz. option from Brownells.

Why Hunters Choose the Brownells

Fast Wipe-on,

Wipe-off application simplifies cold bluing

Instant Coloring

Action reduces the need for

Deep-penetrating Formula

Is described for a long-lasting

Suitable External

Internal parts and pieces

Easy Surface

Standard cleaning and degreasing

Key Features

  • Fast, wipe-on, wipe-off application for quick cold bluing
  • Original high-speed formula from the 44/40 cold-blue line
  • Deep-penetrating coloring action for a long-lasting finish
  • No need to soak or rub for long periods
  • Easy surface prep: clean and degrease before applying
  • Suitable for external and internal parts and pieces

Best Used For

  • Hunters restoring scratched external or internal metal parts with a wipe-on, wipe-off cold blue
  • Users wanting a fast touch-up option for small finish repairs without long soaking or rubbing
  • Shop owners or gunsmiths needing a compact 2 oz. cold blue for occasional maintenance work
  • Owners of firearms with minor scratches who can clean and degrease before application

Specifications

Application MethodWipe-On, Wipe-Off
Available Sizes2 oz. (59.12mL), 1 pt. (473mL), 1 qt. (946mL), 1 gal. (3.8L)
Counter Display Contents12, 2 oz. bottles; 1, A 1/2 oz. test bottle; 18 nails; 18 patches; molded plastic countertop display
Finish TypeCold Blue
Formula TypeHigh-Speed Formula
Pack Count12 bottles per carton
Shipping TermsShipping prepaid on 24 carton single purchase
Size2 oz. (59.12mL)

Pros

  • Fast wipe-on, wipe-off application simplifies cold bluing work.
  • Instant coloring action reduces the need for long soak times.
  • Deep-penetrating formula is described for a long-lasting finish.
  • Suitable for external and internal parts and pieces.
  • Easy surface preparation with standard cleaning and degreasing.
  • Offered in a compact 2 oz. bottle size for shop use.

Considerations & Trade-offs

  • This is a cold-blue product for external/internal parts and pieces, so it is intended for touch-up and finishing work rather than a full refinishing process.
  • The application is described as wipe-on, wipe-off, which is convenient but also means surface prep matters; scratches still need to be cleaned and degreased first.
  • The 2 oz. size is compact and practical for spot work, but larger projects would require a larger package size from the available options.
  • The description emphasizes instant coloring and deep penetration, but it does not provide technical performance data, so results should be evaluated on the specific metal and finish condition.

Suggested Comparisons

  • Gun maintenance and finishing supplies
  • Cold blue solutions
  • Metal touch-up and repair products
  • Firearm cleaning and care products

Suggested Accessories

  • Applicator patches
  • Cleaning and degreasing supplies
  • Protective gloves
  • Gun maintenance cloths

Frequently Asked Questions

What is Formula 44/40A(R) Instant Gun Blue used for?

It is a cold blue product for bluing metal surfaces, including external and internal parts and pieces, according to the product description.

How is 44/40A(R) applied?

The description says to dampen a patch with 44/40, wipe it on, and wipe it off immediately with a dry patch.

Does this product require long soaking or heavy rubbing?

No. The product description says there is no need to soak or rub for long periods.

What preparation is needed before using it on scratches?

For scratches, the description says to clean and degrease the area as you normally would before applying 44/40.

What size is this product?

This listing is for a 2 oz. bottle. The provided specs also list other available sizes, but this product title and listing are for the 2 oz. version.