SERTAN BK is an economical retanning powder based on synthetic polymers. Especially suitable for filling and compacting the empty and frayed leather structure, providing good fullness in flanks and bellies. Improves adhesion, elasticity, fiber compaction of fibers and buffing. It is ideal to obtain closed structures and short plush.
Recommended use to avoid grain looseness in leather to be milled.

Sertan-BK-TDS-V002-EN