HALF PRICE: Härkila Kaldfjord Corduroy Shirt, now £49.99 (RRP £99.99) ›

Gun-Blue-And-Rust

Cold blueing for touching up scratched or worn bluing on barrels and actions — the cheap fix that stops a bare patch turning into a rust spot.

Liquid — Birchwood Casey Perma Blue and Phillips Professional Cold Blue. Easiest for larger areas.
Paste and gel — Phillips cold blue paste and Bisley gun blue gel. Better for spot work, because they stay where you put them.
Kits — the Birchwood Casey Deluxe Perma Blue and Tru-Oil kit covers metal and stock finishing together.
Aluminium — Birchwood Casey Aluminum Black, for alloy parts that cold blue will not touch.

Degrease thoroughly first. Cold blue will not take over oil, and the finish is a repair rather than a match for factory hot bluing.

See also gun care and cleaning.

19 products

Sort

Nickerson Professional Cold Blue, a 250cc plastic bottle of pale blue liquid with a cream label reading 'for guns, screws and metal accessories'

No-air-freight warning symbol: a black aeroplane inside a red circle with a diagonal bar

Phillips Professional Cold Blue 250ml Bottle

Contents of the Birchwood Casey deluxe kit laid out on white: bottles of Stock Sheen and Conditioner, Walnut Stain, Tru-Oil, Perma Blue, Cleaner-Degreaser and Blue and Rust Remover, with cotton cloths, applicators, a Barricade wipe and the Warm Wood and Cool Steel booklets.

Warning symbol rather than a product shot: a black aircraft silhouette in a red circle with a diagonal bar, marking the kit as restricted from air transport.

Birchwood Casey Deluxe Perma Blue & Tru-Oil Finishing Kit

Phillips Gun Blue 20g Glass Jar

Phillips Gun Blue Cold Blue Paste, 20g Glass Jar

Bisley Gun Blue 75g Tub

Bisley Gun Blue 75g Tub – view 2

Bisley Gun Blue 75g Tub - Cold Blueing Gel

Birchwood Casey Perma Blue: the small blue 3oz bottle stood beside its blue and white blister card, both angled on a white ground.

Perma Blue 3oz bottle and retail blister pack shown front-on, the card promising a non-streaky dark blue-black finish on steel.

Birchwood Casey Perma Blue Liquid Gun Blue 3oz

Sale

Birchwood Casey Plum Brown Barrel Finish in a 5 fl oz amber glass bottle with a white screw cap, shown front-on to the red and white label.

Birchwood Casey Plum Brown Barrel Finish 5oz

£16.99 £15.50 Save £1.49

Sale

Birchwood Casey Aluminum Black Touch-Up 3 ounce

Birchwood Casey Aluminum Black Touch-Up 3 ounce – view 2

Birchwood Casey Aluminum Black Touch-Up 3oz

£15.54 £14.99 Save £0.55

Two 250ml bottles of Nickerson Professional Cold Blue stood side by side on white, pale labels reading for guns, screws and metal accessories, with the blue solution visible in the base. Square pack-of-two shot.

Marketing graphic: white-gloved hands wiping cold blue onto a rifle action, overlaid with green text panels reading simple means of re-blueing, professional results and ideal for the amateur under cold conditions.

Phillips Professional Cold Blue 250ml Bottle — Pack of 2

Sale

Birchwood Brass Black Touch-Up 3 ounce

Birchwood Brass Black Touch-Up 3 ounce – view 2

Birchwood Casey Brass Black Touch-Up 3oz

£15.99 £14.99 Save £1.00

Birchwood Super Black Touch-Up Pen (flat black) 0.33 ounce

Birchwood Super Black Touch-Up Pen (flat black) 0.33 ounce – view 2

Birchwood Casey Super Black Touch-Up Pen, Flat Black 0.33oz

BushWear 250ml Professional Cold Blue by Phillips

BushWear 250ml Professional Cold Blue by Phillips – view 2

Phillips Professional Cold Blue 250ml Gun Bluing Solution

Birchwood Perma Blue® Liquid Gun Blue Finishing kit

Birchwood Perma Blue® Liquid Gun Blue Finishing kit – view 2

Birchwood Casey Perma Blue Liquid Gun Blue Kit

Birchwood Barricade Rust Protection 6 ounce aerosol

Birchwood Casey Barricade Rust Protection 6oz Aerosol

Sale

Birchwood Casey Perma Blue Paste Gun Blue 2oz

£12.99 £11.99 Save £1.00

Birchwood Casey Super Blue Liquid Gun Blue 3oz

Sale

Birchwood Casey Super Black Gloss Touch-Up Pen 0.33oz

£11.10 £9.99 Save £1.11

Birchwood Casey Blue & Rust Remover 3oz

Birchwood Casey Blue & Rust Remover 3oz – view 2

Birchwood Casey Blue & Rust Remover 3oz

Sale

Birchwood Barricade Rust Protection Take-Alongs 25 wipes

Birchwood Barricade Rust Protection Take-Alongs 25 wipes – view 2

Birchwood Casey Barricade Rust Protection Take-Alongs 25

£23.30 £21.99 Save £1.31

Sold Out

Birchwood Casey Lead Remover and Polishing Cloth 6" x 9"

Birchwood Casey Lead Remover & Polishing Cloth 6x9

Cold Blue & Gun Blueing UK | Birchwood Casey, Bisley | BushWear