BIRCHWOOD LABS Presto Black BST4 Brush-On-Black-5gal
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A liquid brush-on blackener for all iron and non-stainless steels.
Reacts quickly and produces a non-dimensional black finish in 30-90 seconds. Sealed with a protective oil
Suitable for use on precision tooling and machine components. Produce a pleasing distressed or antique pewter type finis?h