Cobratec

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Description

[PMC Specialties Group, Westlake, Ohio] A series of triazole-based corrosion inhibitors. Cobratec products bind to copper ions thus inhibits other reactions. Their presence also eliminates copper deposition on other surfaces. Cobratec 99 is now Cobratec BZ

Product Metals Protected Composition Form Comments
COBRATEC® BZ Copper Benzotriazole Solid, off white flake Solids provide the highest level of inhibition, but can be difficult to handle
COBRATEC® TT100 Copper Tolytriazole Solid, Off white Solids provide the highest level of inhibition, but can be difficult to handle
COBRATEC® CBT Copper Carbobenzotriazole Solid, crystalline powder Solids provide the highest level of inhibition, but can be difficult to handle
COBRATEC® TT85 Copper Sodium Tolyltriazole Solid, White powder Solids provide the highest level of inhibition, but can be difficult to handle
COBRATEC® TT50S Copper Sodium Tolyltriazole Amber alkaline water solution Convenient aqueous solution; widely used in water treatment and engine coolants, forms alkaline salt
COBRATEC® TT55K Copper Potassium Tolyltriazole Amber alkaline water solution Convenient aqueous solution; widely used in water treatment and engine coolants, forms alkaline salt
COBRATEC® 40S Copper Sodium Benzotriazole Amber alkaline water solution Convenient aqueous solution; widely used in water treatment and engine coolants, forms alkaline salt
COBRATEC® TT-25-EG Copper Tolyltriazole Solid in ethylene glycol solvent Convenient solvent solution; used in inks, flooring, paints, and direct copper treatments
COBRATEC® TT-35-G Copper Tolyltriazole Solid in propylene glycol solvent Convenient solvent solution; used in inks, flooring, paints, and direct copper treatments
COBRATEC® TT-35-I Copper Tolyltriazole Solid in Isopropanol solvent Convenient solvent solution; used in inks, flooring, paints, and direct copper treatments
COBRATEC® TT-40-DG Copper Tolyltriazole Solid in diethylene glycol solvent Convenient solvent solution; used in inks, flooring, paints, and direct copper treatments
COBRATEC® TT-50-A Copper Tolyltriazole Solid in triethanolamine solvent Convenient solvent solution; used in inks, flooring, paints, and direct copper treatments
COBRATEC® 20-EG Copper Solid in ethylene glycol solvent Benzotriazole Convenient solvent solution; used in inks, flooring, paints, and direct copper treatments
COBRATEC® 35-G Copper Solid in propylene glycol solvent Benzotriazole Convenient solvent solution; used in inks, flooring, paints, and direct copper treatments
COBRATEC® 45-I Copper Solid in isopropanol solvent Benzotriazole Convenient solvent solution; used in inks, flooring, paints, and direct copper treatments
COBRATEC® 928 Copper, steel, aluminum, copper alloys, silver and cobalt Liquid with 90% solids Multiple azoles Liquid provides ease of handling, no-caustic, non-flammable, can reduce cobalt leaching
COBRATEC® 937 Copper, and some steel Liquid with 90% solids Multiple azoles Liquid provides ease of handling, no-caustic, non-flammable, can replace Cobratec-BZ for many uses
COBRATEC® 911S Copper, steel, aluminum, copper alloys, silver and cobalt Polyolester oil with 40% solids Multiple azoles Can replace CO99 in many uses

Resources and Citations

  • PMC Specialties: Cobratec
  • R.Organ, "The Corrosion of Tin, Copper, Iron and Steel and Lead" in Preservation and Conservation: Principles and Practices, Preservation Press, Washington DC, 1976, p. 249.

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