Search query: cold blue for metal
Product: Tetra Gun Liquid Blue Blister Pack, 2.7-Ounce
Brand: Tetra
Highlights: Tetra gun liquid blue is the best cold bluing formula in the gun market
Recommended to use Tetra gun blue and rust remover as the pre-treatment
Build up to seven layers of bluing based on how dark and rich you want the finish
Results are almost immediate
Tetra gun liquid blue is a chemical reaction that enhances the appearance of gunmetal
ESCI relevance label: E