Kool-Blak 225 Short Run Production Kit - Kool-Blak 225 Short Run Production Kit - 2 Hour Heat Up

How to Use Kool-Blak 225

Kool-Blak 225 is a mid-temperature black-oxide solution that gives steel parts glossy black finishes while eliminating the hazards of caustic fumes and boiling temperatures.

Use Kool-Blak 225 to:
  • Coat steel parts with a glossy, smut-free black-magnetite finish
  • Reduce safety hazards and energy costs
  • Eliminate caustic fumes
  • Work with stable chemicals
  • Meet military specification MIL-DTS 13924D Class 1 and AMS 2485L
Getting Started

EPi offers half-liter starter kits for getting acquainted with Kool Blak 225 and 5-gallon short-run production kits for small projects or operations.

Kool-Blak 225 is a blackening solution that replaces hot black-oxide processes without producing hazardous fumes, sacrificing aesthetic appeal, or reducing abrasion resistance. Drag out 1–5 gallons of Kool-Blak 225 per 100-gallon bath per week.

Samples available to purchase - CALL #262-786-9330.

PLEASE NOTE: Orders ship within 3 business days.

Corrosive
Corrosive
Environment
Environment
Irritant
Irritant
Subtotal $5,985.00
In stock
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How to Use Kool-Blak 225

Kool-Blak 225 is a mid-temperature black-oxide solution that gives steel parts glossy black finishes while eliminating the hazards of caustic fumes and boiling temperatures.

Use Kool-Blak 225 to:
  • Coat steel parts with a glossy, smut-free black-magnetite finish
  • Reduce safety hazards and energy costs
  • Eliminate caustic fumes
  • Work with stable chemicals
  • Meet military specification MIL-DTS 13924D Class 1 and AMS 2485L
Getting Started

EPi offers half-liter starter kits for getting acquainted with Kool Blak 225 and 5-gallon short-run production kits for small projects or operations.

Product Questions (4)

Customer Questions
Where can I find a technical data sheet (TDS) or safety data sheet (SDS) for EPi's products?
These documents can be found on each product page. You can download PDFs of TDSs, SDSs, product brochures, and more.
What is black oxide?
Black oxide is a blend of caustic, oxidizers, and additives that is used on ferrous metals. There are three types of metal blackening: hot, mid, and room temperature blackening. EPi was the first company to offer all three processes. Hot black oxide (285 F°) is a conventional hot process which produces a true black oxide iron magnetite (Fe3O4) finish. It is a premium-grade salt mixture which will blacken a wider range of steel alloys than any other process on the market. Mid-temperature black oxide (225–245 F°) is the latest development in blackening processes, producing a true black oxide iron magnetite (Fe3O4) finish. It produces no caustic boiling fumes and provides a safer working environment. Room-temperature blackening (65–85° F) is the preferred metal-blackening process for safe and convenient in-house blackening. It is an excellent non-bleed black finish for powdered metal and cast iron. It produces super deep blackness and corrosion resistance equal to hot oxide blackeners. It is important to note this is not a true black oxide process; however, it may be referred to as room-temperature black oxide. Room-temperature blackening processes are autocatalytic reactions of a black selenium-copper compound that deposits on ferrous parts through an immersion process.
What makes EPI’s black oxide and metal-blackening processes better?
Insta-Blak processes do not produce smutty rub-offs like other room-temperature products. Our Ultra-Blak products are premium-grade black oxide, and Kool-Blak does not produce a smutty rub off like other mid-temperature processes. They are easy-to-use with wide windows of operation.
What are the advantages of black oxide and metal blackening?
Ultra-Blak: Produces true black oxide finish Fe3O4 magnetite finish Abrasion resistance Corrosion protection Meets military spec MIL-DTL-13924D and AMS 2485H Blackens faster than other hot black oxides Less sludge generation than other hot black oxides, which means lower gas bills Insta-Blak: Capital costs less than $10,000–15,000 for turnkey operations Energy savings No CO2 emissions or green house gases 1–5 minute process time for blackening Powder metal does not bleed-out white salts like hot black oxide Cast iron and steel castings do not turn red No ventilation costs Provides corrosion resistance Dimensional stability thickness 5–10 millionths of an inch Can be painted over Anti-galling properties Aesthetic appeal
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