Birchwood Technologies Safe Prep 5 Gallon

Availability: In stock (2)

SAFE PREP® Surface Conditioner is a special acid activator that prepares the surface of iron and steel parts prior to blackening in PRESTO BLACK® room temperature blackening process. Supplied as a liquid concentrate, SAFE PREP® concentrate is mixed with water and operates at room temperature to coat the metal surface with a thin, gray primer coating that prepares it for blackening.


SAFE PREP® surface conditioner is used as part of a multi-step blackening process, as follows:

  1. CLEAN the parts to remove oils and shop soils.
  2. For lighter oils and soils, use SAFE SCRUB® ST biodegradable liquid cleaner, mixed at 20% by volume and operate at 150° F. Typical immersion time of 8 minutes.
  3. For heavy-duty cleaning, use PRESTO KLEEN® HP, mixed at 8 – 12oz/gal and operated at 150° F. Typical immersion time of 8 minutes.
  4. RINSE in clean tap water; 30 seconds.
  5. PRIME/CONDITION SURFACE in SAFE PREP® solution at room temp; Typical immersion is 1 – 2 minutes.
  6. RINSE in clean tap water; 30 seconds.
  7. BLACKEN in PRESTO BLACK solution; Room Temp; 1-3 minutes or until parts are uniformly gray/black in color.
  8. RINSE in clean tap water; 30 seconds.
  9. SEAL in DRI TOUCH® AMBER IRP2 non-tacky rust preventive for a soft, waxy finish or other appropriate rust preventive topcoat.
0 stars based on 0 reviews
By using our website, you agree to the use of cookies. These cookies help us understand how customers arrive at and use our site and help us make improvements. Hide this message More on cookies »