The new TRU TEMP XT process from Birchwood Technologies (Eden Prairie, MN) forms a durable black oxide finish on difficult-to-blacken steel, iron and most stainless steel alloys. Long asked for by metal finishers, TRU TEMP XT is a mid-temperature process that forms a satin black magnetite finish that protects critical surfaces in storage, shipment and startup while resisting galling and aiding break-in.
Operating at 230 – 260°, TRU TEMP XT is used as a two-stage chemical reaction, first using OXYPRIME XT Primer/Prep, then followed by TRU TEMP XT which forms the attractive black magnetite finish. The process takes just 30 minutes. For optimum appearance and corrosion protection, the black finish can be sealed with an appropriate rust preventative topcoat.