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Lubeco Green Fluids

Quenching Oils and Polymer Quenchants

Quenching oils and polymer quenchants are specialized fluids used in heat treatment processes to control the rate of cooling in metals and alloys. Unlike water or brine solutions, these engineered fluids provide uniform, distortion-minimized quenching with reduced cracking risks, making them essential in hardening, induction, flame treatment, and precision manufacturing. Quenching oils are typically formulated with refined mineral, synthetic, or GTL base oils enhanced for high flash points, thermal stability, and oxidation resistance, ensuring safe and consistent cooling.
Polymer quenchants, on the other hand, are water-soluble organic polymers that deliver adjustable cooling rates, biostability, and excellent wetting properties, offering a cleaner and safer alternative to traditional salt or caustic solutions. Together, they provide critical process reliability across automotive, aerospace, tooling, and engineering industries.
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As one of the leading Quenching Oil Manufacturers and Polymer Quenchant Manufacturers, we have developed a comprehensive portfolio of synthetic quenching oils and high-performance polymer quenchants engineered for modern heat treatment applications. Leveraging cutting-edge GTL base stocks and advanced polymer technology, our products deliver accelerated yet controlled cooling, reduced sludge formation, and superior corrosion protection. With mineral oil-free formulations, high flash points, and environmentally responsible chemistry, Lubeco’s quenching solutions ensure operational safety, extended sump life, and consistent metallurgical results. Trusted by leading manufacturers worldwide, our range is designed to optimise performance across diverse heat treatment processes, supporting both productivity and sustainability goals.

APPLICATIONS

Lubeco’s quenching solutions are trusted across industries for heat treatment and controlled cooling applications, including:

Material Compatibility

Our quenching oils and polymer quenchants are proven across diverse metals and alloys:

Carbon, alloy, and tool steels (medium to high hardenability grades)

Suitable for epoxy resin coatings when using polymer quenchants

Best for anodised parts in polymer quenchant applications

Brass, bronze, and speciality non-ferrous materials

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Quenching Oils
GTL‑based synthetic quenching oil with moderate viscosity, high flash point, and excellent thermo‑oxidative stability, delivering fast, uniform cooling for precision heat treatment.

Material Compatibility

All types of steel

Applications

Medium‑fast quenching, hot and cold quenching, induction hardening, heat transfer systems

Advantages

Synthetic, mineral‑oil‑free quenching oil offering clean, fast, and consistent cooling with excellent penetration for tight‑tolerance heat‑treated components.

Material Compatibility

All types of steel

Applications

Medium‑fast quenching, hot and cold quenching, induction hardening, heat transfer systems

Advantages

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Polymer Quenchant
High‑molecular‑weight, water‑soluble polymer quenchant designed to replace mineral oil and brine systems, providing clean, uniform, and adjustable cooling for precision heat treatment.

Material Compatibility

All steels, cast iron (epoxy‑coated), aluminium (anodized), brass, copper

Applications

Induction hardening, flame hardening, heat transfer systems, general quenching

Advantages

Advanced water‑based polymer quenchant with excellent thermal stability and concentration monitoring capability for consistent, residue‑free heat treatment performance.

Material Compatibility

All steels, cast iron (epoxy‑coated), aluminium (anodized), brass, copper

Applications

Induction hardening, flame hardening, heat transfer systems, general quenching

Advantages

Why Choose Lubeco’s Quenching Oils and Polymer Quenchants?

Consistent Cooling
Performance

Accelerated, uniform cooling reduces steel cracking, distortion, and residual stresses, ensuring dimensional stability.

Superior Surface
Finish

Bright quenches with minimal residue, simplifies post-process cleaning and maintains surface integrity

Mineral Oil-Free
Technology

Lower smoke, vapour, and fire hazards, providing a safer and cleaner shop environment.

High Thermal &
Oxidative Stability

Extended sump life, reduced acidity, and minimal sludge formation lower maintenance frequency.

Adjustable Cooling
Rates

Polymer quenchant concentration can be tailored to match specific quenching speed requirements.

Corrosion
Protection

Advanced additives safeguard heat treatment systems against rust and scale, extending equipment life.

Environmentally
Responsible

Bio-stable polymer formulations resist microbial growth, ensuring solution longevity and sustainability.

Versatility Across
Industries

Suitable for induction hardening, flame hardening, and precision quenching in automotive, aerospace, and engineering applications.