---
product_id: 13687075
title: "Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL)"
brand: "brownells"
price: "$U1588"
currency: UYU
in_stock: true
reviews_count: 13
category: "Brownells"
url: https://www.desertcart.uy/products/13687075-brownells-oxpho-blue-liquid-gun-blue-cold-bluing-solution-gunsmithing
store_origin: UY
region: Uruguay
---

# Fast-acting in under 1 min 4 fl oz concentrated bottle Rust-resistant finish Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL)

**Brand:** brownells
**Price:** $U1588
**Availability:** ✅ In Stock

## Summary

> 🖤 Transform your metal with pro-grade cold bluing—fast, flawless, and rust-free!

## Quick Answers

- **What is this?** Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL) by brownells
- **How much does it cost?** $U1588 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/13687075-brownells-oxpho-blue-liquid-gun-blue-cold-bluing-solution-gunsmithing)

## Best For

- brownells enthusiasts

## Why This Product

- Trusted brownells brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Results:** Achieve superior bluing in 10-15 seconds—no waiting around
- • **Versatile Coverage:** 4 fl oz covers up to 2 sq ft of metal surface with ease
- • **Long-lasting Finish:** Waterproof gloss finish that keeps your gear looking sharp
- • **Effortless Application:** Just dampen cotton flannel and rub for a flawless finish
- • **Professional Grade Protection:** Creates a durable, rust-resistant black conversion coating

## Overview

Brownells Oxpho-Blue Liquid Gun Blue is a professional-grade cold bluing solution designed for quick and easy application. This 4 fl oz bottle delivers a rust-resistant, waterproof black finish in under a minute, covering up to 2 square feet. Ideal for gunsmithing and metal maintenance, it ensures superior protection and a sleek gloss finish with minimal effort.

## Description

Buy Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL) on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Great product - Works great, clean well with alcohol, preheat and use clean cotton ball’s, and rubber gloves, was very impressed with the quality and the finish
Review: Amazing product - This stuff is amazing. I blued several of my tools completely and did some touch ups. It works in 10-15 seconds (under one minute). The trick is to to clean the surface very well to remove any grease with acetone or alcohol. Also, I got a better result by using a wire brush vs recommended #0 steel wool after bluing. The black coating is basically also a type of rust and it is porous and to prevent regular rusting you need to apply any oil or wax as a rust inhibitors after bluing which will be absorbed and retained by the black coating creating a barrier for regular rust.

## Features

- Absolutely no after-rust
- Ease of application and remarkably superior results
- With Oxpho-Blue, all you need do in most cases, is dampen a piece of cotton flannel and give the area a good rubbing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00SOUKFLW |
| ASIN  | B00SOUKFLW |
| Age Range Description | Adult |
| Best Sellers Rank | #9,632 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #25 in Gun Lubrication |
| Brand Name | Brownells |
| Color | Blue |
| Color Code | #B4BCC0 |
| Container Type | Bottle |
| Coverage | 1-2 sq ft/4 fl oz |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,455) |
| Date First Available  | January 24, 2015 |
| Department  | Oxpho-Blue Professional Grade Cold Blue |
| Finish Type | Gloss |
| Included Components | Oxpho-Blue Liquid Gun Blue |
| Is Discontinued By Manufacturer  | No |
| Item Form | Liquid |
| Item Type Name | Gun cleaning kits |
| Item Volume | 4 Fluid Ounces |
| Item Weight | 5.6 ounces |
| Item model number  | Oxpho-Blue Professional Grade Cold Blue |
| Manufacturer | Barg Engine |
| Manufacturer  | Barg Engine |
| Model Name | 082024004 |
| Model Number | Oxpho-Blue Professional Grade Cold Blue |
| Paint Type | Conversion Coating |
| Part Number | Oxpho-Blue Professional Grade Cold Blue |
| Product Dimensions  | 1 x 1 x 1 inches; 5.6 ounces |
| Size | 4 Fl Oz (Pack of 1) |
| Special Features | Rust Resistant |
| Surface Recommendation | Metal |
| UPC | 050806102255 |
| Unit Count | 4 Fluid Ounces |
| Warranty Description | Manufacturer Warranty |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Brownells
- **Color:** Blue
- **Finish Type:** Gloss
- **Item Form:** Liquid
- **Item Volume:** 4 Fluid Ounces
- **Paint Type:** Conversion Coating
- **Size:** 4 Fl Oz (Pack of 1)
- **Special Feature:** Rust Resistant
- **Surface Recommendation:** Metal
- **Unit Count:** 4 Fluid Ounces

## Images

![Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL) - Image 1](https://m.media-amazon.com/images/I/61zhWBA+qkL.jpg)
![Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL) - Image 2](https://m.media-amazon.com/images/I/71J6fbaJueL.jpg)
![Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL) - Image 3](https://m.media-amazon.com/images/I/71je2BJvAVL.jpg)
![Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL) - Image 4](https://m.media-amazon.com/images/I/71GHEZUKq-L.jpg)
![Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL) - Image 5](https://m.media-amazon.com/images/I/71A6B-AF6kL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by S***O on February 22, 2026*

Works great, clean well with alcohol, preheat and use clean cotton ball’s, and rubber gloves, was very impressed with the quality and the finish

### ⭐⭐⭐⭐⭐ Amazing product
*by M***L on January 2, 2026*

This stuff is amazing. I blued several of my tools completely and did some touch ups. It works in 10-15 seconds (under one minute). The trick is to to clean the surface very well to remove any grease with acetone or alcohol. Also, I got a better result by using a wire brush vs recommended #0 steel wool after bluing. The black coating is basically also a type of rust and it is porous and to prevent regular rusting you need to apply any oil or wax as a rust inhibitors after bluing which will be absorbed and retained by the black coating creating a barrier for regular rust.

### ⭐⭐⭐⭐⭐ Excellent Product
*by D***N on March 14, 2026*

Very easy to work with and really restored my rifle to new.. Simply remove the rust with a 400 grit emory paper, wipe clean with a cleaner (like alcohol) before applied the bluing Solution, let it then dry for a minute and burnish with a #0 steel wool. Repeat the process if necessary, I applied it 3 times minimum. At end apply CLP mil spec to seal the newly applied area.

## Frequently Bought Together

- Brownells Oxpho-Blue Liquid Gun Blue, Cold Bluing Solution, Gunsmithing Tools Maintenance Cleaning Supplies, Professional Grade, 4 Fl oz. (118.2 mL)
- Brownell Formula 44/40 Instant Gun Blue
- Birchwood Casey Fast-Drying Fast-Acting Aluminum Black Metal Finish for Restoring Scratched and Marred Areas, Gun Cleaning

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-04-22*