Core Treatment
Solvenite Thermal Diffusion
Deep thermal diffusion that reaches every surface of your die cast tooling, internal water lines included. .015 inch case depth without the brittle white layer left by nitriding.
Process Specifications
.015–.020″
Case Depth
Under 1000°F
Process Temperature
4+ Hours
Treatment Duration
Zero
Size Change
Core Treatment
What Is Solvenite?
Solvenite is a thermal diffusion treatment in which tooling is fully submerged in a proprietary thermal bath under 1000°F for a minimum of four hours. The process creates a .015–.020″ case depth without producing the brittle white layer that conventional nitriding leaves behind. The diffused layer holds up under the extreme thermal cycling of die casting without chipping, flaking, or delamination.
Because Solvenite is a liquid-bath process, diffusion is homogeneous. The treatment reaches every surface uniformly, including internal water lines, deep pockets, and complex geometries that line-of-sight PVD coatings cannot access. No size change, no polishing required. Treated tooling welds like normal steel, making field repairs and modifications straightforward.
Solvenite can be applied multiple times over a tool's life cycle, including to mid-life tooling that has already been in production. The process simultaneously stress-relieves the steel, removes existing solder buildup, and clears calcium-clogged waterlines. That restores performance without the cost of replacement tooling.
Our Process
Four Steps to Extended Tool Life
Step 01
Initial Inspection
Our die cast engineers assess every incoming tool, flagging unusual welds, plugs, and inserts before treatment begins.
Step 02
Ultrasonic Cleaning
Aggressive deep cleaning removes soldering buildup, flushes water lines, and eliminates calcium deposits that compromise treatment quality.
Step 03
Preheat
Tooling is gradually preheated to match the Solvenite thermal bath temperature, preventing thermal shock and ensuring uniform treatment.
Step 04
Solvenite Diffusion
Tooling is submerged in the Solvenite bath under 1000°F for a minimum of 4 hours. The liquid process simultaneously diffuses and stress-relieves the steel.
Advantages
What Makes Solvenite Different
No White Layer
Unlike nitriding, Solvenite creates no brittle compound zone. The diffused layer holds up under the extreme thermal cycling of die casting without chipping, flaking, or delaminating.
Homogeneous Diffusion
The liquid thermal bath reaches every surface uniformly, including internal water lines, deep pockets, and complex geometries that line-of-sight PVD coatings miss entirely.
Welds Like Normal Steel
Nitride-treated tooling cannot be welded. Solvenite-treated steel welds normally, making field repairs and modifications straightforward.
Mid-Life Rejuvenation
Mid-life dies benefit from Solvenite as much as new tooling. The treatment removes solder buildup, clears waterlines, strengthens previous welds, and extends remaining tool life.
No Size or Finish Change
Zero dimensional change after treatment. No polishing required. The tool goes back into production with the same geometry, now harder and more resistant.
Under 1000°F Process
The entire treatment occurs below 1000°F, minimizing thermal impact on the base steel. Lower temperatures mean less risk of distortion or metallurgical damage.
Documented Outcomes
What Solvenite Delivers in Production
Two named die casters, two different applications. See the full case studies and testimonials →
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Heat check at the 62mm bore after 70,000 shots. Previously required filing every 2,500 to 5,000 shots on the same tooling, uncoated.
Solvenite vs untreated · 62mm bore filing interval
Lee Kittle · Muskegon Die Casting
“Heat check historically filed at 62mm bore is now non-existent at 70K shots. Huge cost savings in rework, repairs, and uptime.”
80–100K
Shots on Solvenite-treated VascoMax 300 dies casting Silafont 36 structural alloy. The same tooling, untreated, was reaching 15,000 shots before failure.
Solvenite vs untreated · VascoMax 300 · Silafont 36 · planetary carrier
Dan Norton · Anderton Casting
“Ordered 7 dies with 3 more planned, all with Solvenite.”
Applications
Proven Across Die Casting Alloys
A380 Alloy
The industry workhorse. Solvenite dramatically reduces heat checking and soldering on A380 dies, the most common aluminum die casting alloy in North America.
Low-Fe Structural Alloys
Silafont, Mercalloy, and Aural alloys are harder on tooling than A380. Solvenite’s deep diffusion layer provides the extra protection these aggressive alloys demand.
Mid-Life Tooling
Don’t scrap tooling prematurely. Solvenite cleans, stress-relieves, and re-hardens existing dies, extending useful life and deferring the cost of replacement tooling.
Next Step
Protect Your Die Cast Tooling
Send us your tooling specs for a Solvenite treatment quote. Most tooling ships within 5-7 business days.