How to Use Ultra-Blak 400
Ultra-Blak 400 is a powdered oxidizing product that may be used at 5 3/4 lbs/gal to blacken a variety of steel, tool steels, and steel alloys with deep, aesthetically pleasing black finishes.
Use Ultra-Blak 400 to:
- Work with a low-concentration formula
- Produce an eye-appealing glossy black-blue finish
- Achieve superior abrasion resistance and corrosion protection
- Retain a part's original dimensions and structure
- Meet MIL-DTL-13924D Class 1 and AMS 2485L standards
- Work with a wide variety of steel, tool steels, and steel alloys
Ultra-Blak 400 is a premium-grade powdered oxidizing agent that produces a deep anthracite-black finish on steel and steel alloys.
Drag out 5–30 pounds of Ultra-Blak 400 per week per 100-gallon tank.
Samples available to purchase - CALL #262-786-9330.
PLEASE NOTE: Orders ship within 3 business days.




How to Use Ultra-Blak 400
Ultra-Blak 400 is a powdered oxidizing product that may be used at 5 3/4 lbs/gal to blacken a variety of steel, tool steels, and steel alloys with deep, aesthetically pleasing black finishes.
Use Ultra-Blak 400 to:
- Work with a low-concentration formula
- Produce an eye-appealing glossy black-blue finish
- Achieve superior abrasion resistance and corrosion protection
- Retain a part's original dimensions and structure
- Meet MIL-DTL-13924D Class 1 and AMS 2485L standards
- Work with a wide variety of steel, tool steels, and steel alloys