R35 each per a capsule

Birchwood Casey Perma Blue Paste Gun Blue Clam Pack, Make your gun like new with the Perma Blue Paste Gun Blue Kit. Complete, easy to follow instructions are included with each kit. A generous supply of everything you need to do a "first class" job is included. Perma Blue Paste will give a deep, rich blue-black finish to most steels but will not blacken aluminum, stainless steel or other non-ferrous materials. Kit includes: 2 oz Perma Blue Paste Gun Blue 3 oz Cleaner-Degreaser 3 oz Blue & Rust Remover 00 Steel Wool Pads Blueing Applicators, Sponge, Service Cloth Barricade Rust Protection Gun Wipes Complete Instruction Guide

Removes rust and old blue easily and quickly without damaging the base metal. A necessary step before rebluing or browning. 

Quickly Removes 
Leading, Burn Rings, Carbon Residue

Excellent for stainless steel and other metal surfaces