--- product_id: 6077060 title: "Birchwood Casey Perma Blue Liquid Air Gun Shotgun Blueing 90ml [13125] Blue Rifle" brand: "birchwood casey" price: "¥3370" currency: JPY in_stock: true reviews_count: 13 category: "Birchwood Casey" url: https://www.desertcart.jp/products/6077060-birchwood-casey-perma-blue-liquid-air-gun-shotgun-blueing-90ml store_origin: JP region: Japan --- # Even, streak-free blue-black finish 2 oz convenient tube Fast-acting formula Birchwood Casey Perma Blue Liquid Air Gun Shotgun Blueing 90ml [13125] Blue Rifle **Brand:** birchwood casey **Price:** ¥3370 **Availability:** ✅ In Stock ## Summary > 🔵 Elevate your firearm’s finish—because your gear deserves the pro touch! ## Quick Answers - **What is this?** Birchwood Casey Perma Blue Liquid Air Gun Shotgun Blueing 90ml [13125] Blue Rifle by birchwood casey - **How much does it cost?** ¥3370 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/6077060-birchwood-casey-perma-blue-liquid-air-gun-shotgun-blueing-90ml) ## Best For - birchwood casey enthusiasts ## Why This Product - Trusted birchwood casey brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Long-Lasting:** 2-ounce tube offers multiple applications, making it a must-have for every gun care kit. - • **Trusted Legacy Since 1948:** Relied on by gunsmiths and collectors for over 70 years, ensuring unmatched quality and reliability. - • **User-Friendly Application:** Apply easily with swabs; perfect for both quick touch-ups and full rebluing projects. - • **Precision Touch-Up Mastery:** Effortlessly restore scratches and worn spots with a smooth, non-streaky finish. - • **Rapid Results, Professional Grade:** Fast-acting liquid formula delivers a deep blue-black finish in minutes—no heat required. ## Overview Birchwood Casey Perma Blue Liquid Gun Blue is a professional-grade, fast-acting bluing solution designed to restore and protect steel firearms with a smooth, even blue-black finish. Trusted since 1948 by shooters and gunsmiths, it comes in a convenient 2-ounce tube for easy application and multiple touch-ups, delivering streak-free results without the need for heat. ## Description BIRCHWOOD CASEY PERMA BLUE LIQUID GUN BLUE/PASTE GUN BLUE Make your gun like new with our Birchwood Casey Perma Blue Paste Gun Blue/Liquid Gun Blue. Birchwood Casey Perma Blue Paste/Liquid - Birchwood Casey offers you the best ways to touch up scratches and worn spots or even completely reblue most guns. It will give a non-streaky, even blue-black finish to steel (except stainless). Both Perma Blue Liquid Gun Blue and Paste Gun Blue provide great bluing to metal that has already been thoroughly cleaned and is free of rust. Perma Blue Paste Gun Blue is slower to darken than Liquid Gun Blue, but will build up a denser finish. The best way to touch up scratches and worn spots on a blued barrel. BIRCHWOOD CASEY Since 1948, serious shooters, avid collectors and professional gunsmiths have relied on Birchwood Casey for shooting and gun care products; Birchwood Casey has pioneered innovative products with an unwavering dedication to quality. Review: Works and looks great!!!!!!! - I used this Perma Blue paste to coat a vintage York Barbell. I used hardly any of the tube to cover about 4 feet of 1-1/16" bar with 4 or 5 coats. Key points to remember, first, get the base metal clean and scuffed uniformly! Any dark spots, discolorations, or deep sand scratches will stand out. Secondly, HEAT THE METAL! It's actually better if your surface is NOT hot, just warmed up slightly (let's say 110-120 degrees, warm to the touch). You could even leave your part in the sun for a few minutes to warm up. Get it too hot and the paste will dry quickly, be uneven, and come off in chunks (rather than allow you to spread it easily over the surface). Similar to you trying wax your car on 110 degree day in the direct sun. No good! FYI, I used acetone to clean the barbell before applying the first coat (and in between coats). First coat goes on a little uneven and blotchy. I let it setup for a minute or so, then rinsed the part off with water and a clean towel. You'll want to lightly scuff the part with a scotchbrite pad between coats (maroon worked good for me), after rinsing the previous coat off. I used a propane torch to heat my base metal back up to slightly warm (move quickly!!), then wiped it off with acetone/clean rag seconds before applying the next coat. Open flame may not be the best idea, but it worked flawless for my situation....just don't light your acetone rag on fire! Heat gun would be better for coating an actual firearm. Repeat the above process until you're happy with the color. The finished product will be evenly coated. You need to rinse it (obviously don't scuff it after the final coat!). End result is nice and smooth, not sticky, and not thick. Color is brown/bronze with this product when applied over bare (scuffed) steel. Review: but I enjoy tinkering with this sort of thing - I have a new-model Crosman 760 that picked up a fair bit of corrosion on its barrel and air cylinder due to improper climate control (awful ventilation design resulting in moisture accumulation) where I had been living at the time. I applied a quick coat of weather-resistant paint to the affected areas to slow corrosion until I could deal with the problem properly. I know, it's a $35 air rifle and buying a new one would have been easier, but I enjoy tinkering with this sort of thing. Fast forward a few months, I removed the paint with steel wool and a Dremel and stripped off all corrosion and existing bluing in the affected areas. I followed the instructions on the tube more-or-less to the letter, and applied about four coats of the bluing paste. The finish does not perfectly match the original from all viewing angles, but is surprisingly close in appearance for the most part. Application was easy and the results were excellent! As the bluing paste contains selenious acid, it is highly toxic and must not be ingested, but the concentration is low enough that vapors are not a concern, and the paste may be applied indoors without a problem. However, I recommend wearing eye protection and rubber gloves while working with the product, as a precautionary measure. This product will not blue stainless steel, but will not harm it either. ## Features - PROVEN WAY FOR TOUCHING UP: Birchwood Casey offers you the best ways to touch up scratches and worn spots or even completely reblue most guns. It will give a non-streaky, even blue-black finish to steel (except stainless) - FAST-ACTING FORMULA: Both perma blue liquid gun blue and paste provide blueing to metal that has already been thoroughly cleaned and is free of rust. Perma blue paste gun blue is slower to darken than liquid gun blue, but will build up a denser finish - HIGH-QUALITY CONSTRUCTION: This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials - TRUSTED SHOOTING GEAR: Since 1948, serious shooters, avid collectors and professional gunsmiths have relied on Birchwood Casey for shooting and gun care products; Birchwood Casey has pioneered innovative products with an unwavering dedication to quality - EASY APPLICATION: Birchwood Casey Perma Blue liquid gun blue will not blue stainless steel, aluminum or non-ferrous metals. Can be applied with swabs (Q-Tips). No heat is required. Excellent for touch up or complete rebluing - CONVENIENT 2 OUNCE TUBE: Comes in a practical 2 ounce tube format that provides sufficient product for multiple applications and touch-ups on your firearms - 2oz net wt - Squeeze Tube (Paste) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000LC601K | | Best Sellers Rank | #6,102 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #81 in Gun Cleaning Kits | | Brand | Birchwood Casey | | Brand Name | Birchwood Casey | | Customer Reviews | 4.6 out of 5 stars 1,239 Reviews | | Global Trade Identification Number | 00029057133226 | | Included Components | see descritption | | Item Type Name | Birchwood Casey Perma Blue Paste Gun Blue 2 ounce tube | | Item Weight | 57 g | | Liquid Volume | 2 fluid ounces | | Manufacturer | Birchwood Casey | | Manufacturer Part Number | BC-13322 | | Model Number | BC-13322 | | Number of Items | 1 | | UPC | 029057133226 | | Unit Count | 1 Count | | Warranty Description | See Manufacturer | ## Product Details - **Brand:** Birchwood Casey - **Included Components:** see descritption - **Liquid Volume:** 2 fluid ounces - **Manufacturer:** Birchwood Casey - **Unit Count:** 1 Count ## Images ![Birchwood Casey Perma Blue Liquid Air Gun Shotgun Blueing 90ml [13125] Blue Rifle - Image 1](https://m.media-amazon.com/images/I/51wAVYkHexL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works and looks great!!!!!!! *by Y***Y on June 4, 2021* I used this Perma Blue paste to coat a vintage York Barbell. I used hardly any of the tube to cover about 4 feet of 1-1/16" bar with 4 or 5 coats. Key points to remember, first, get the base metal clean and scuffed uniformly! Any dark spots, discolorations, or deep sand scratches will stand out. Secondly, HEAT THE METAL! It's actually better if your surface is NOT hot, just warmed up slightly (let's say 110-120 degrees, warm to the touch). You could even leave your part in the sun for a few minutes to warm up. Get it too hot and the paste will dry quickly, be uneven, and come off in chunks (rather than allow you to spread it easily over the surface). Similar to you trying wax your car on 110 degree day in the direct sun. No good! FYI, I used acetone to clean the barbell before applying the first coat (and in between coats). First coat goes on a little uneven and blotchy. I let it setup for a minute or so, then rinsed the part off with water and a clean towel. You'll want to lightly scuff the part with a scotchbrite pad between coats (maroon worked good for me), after rinsing the previous coat off. I used a propane torch to heat my base metal back up to slightly warm (move quickly!!), then wiped it off with acetone/clean rag seconds before applying the next coat. Open flame may not be the best idea, but it worked flawless for my situation....just don't light your acetone rag on fire! Heat gun would be better for coating an actual firearm. Repeat the above process until you're happy with the color. The finished product will be evenly coated. You need to rinse it (obviously don't scuff it after the final coat!). End result is nice and smooth, not sticky, and not thick. Color is brown/bronze with this product when applied over bare (scuffed) steel. ### ⭐⭐⭐⭐⭐ but I enjoy tinkering with this sort of thing *by J***L on July 22, 2015* I have a new-model Crosman 760 that picked up a fair bit of corrosion on its barrel and air cylinder due to improper climate control (awful ventilation design resulting in moisture accumulation) where I had been living at the time. I applied a quick coat of weather-resistant paint to the affected areas to slow corrosion until I could deal with the problem properly. I know, it's a $35 air rifle and buying a new one would have been easier, but I enjoy tinkering with this sort of thing. Fast forward a few months, I removed the paint with steel wool and a Dremel and stripped off all corrosion and existing bluing in the affected areas. I followed the instructions on the tube more-or-less to the letter, and applied about four coats of the bluing paste. The finish does not perfectly match the original from all viewing angles, but is surprisingly close in appearance for the most part. Application was easy and the results were excellent! As the bluing paste contains selenious acid, it is highly toxic and must not be ingested, but the concentration is low enough that vapors are not a concern, and the paste may be applied indoors without a problem. However, I recommend wearing eye protection and rubber gloves while working with the product, as a precautionary measure. This product will not blue stainless steel, but will not harm it either. ### ⭐⭐⭐⭐⭐ Easy to use metal bluing *by R***H on November 11, 2025* Fast bluing, easily controlled paste bluing for ferrous metals, like iron and steel. Easily controlled and stop the chemical process. Wipe it off and oil it to stop. Rub on more to make it darker. ## Frequently Bought Together - Birchwood Casey Fast-Acting Long-Lasting Perma Blue Paste/Liquid Gun Blue for Steel, Touch-Up & Complete Reblue - Birchwood Casey Perma Blue Liquid Gun Blue Finishing All-Inclusive Easy-to-Use Kit for Gun Cleaning, Maintenance and Preservation --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/6077060-birchwood-casey-perma-blue-liquid-air-gun-shotgun-blueing-90ml](https://www.desertcart.jp/products/6077060-birchwood-casey-perma-blue-liquid-air-gun-shotgun-blueing-90ml) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-27*