Birchwood Tru Temp XT Coats Difficult-to-Blacken Metals

Process forms durable black oxide finish on steel, iron and most stainless steel alloys.


Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Birchwood Technologies’ Tru Temp XT process is designed to form a durable black oxide finish on difficult-to-blacken steel, iron and most stainless steel alloys. It is a mid-temperature process that forms a satin black magnetite finish that protects surfaces in storage, shipment and startup, while resisting galling and aiding break-in. 

Operating at 230-260°F, Tru Temp XT is used as a two-stage chemical reaction, first using Oxyprime XT primer/prep, followed by Tru Temp XT to form a black magnetite finish — all within 30 minutes. For optimum appearance and corrosion protection, the black finish can be sealed with a rust preventative topcoat. Birchwood says the finish is Mil-Spec and RoHS compliant, and withstands up to 120 hours of neutral salt spray or several hundred hours of humidity. The finish is a 0.5 microns thick (20 millionths) crystalline structure that allows it to hold a rust inhibitor while serving as a sacrificial barrier to provide break-in lubricity and galling resistance.