Specialty Chemical

Regenerator

A bath additive that protects steel components against decarburization in neutral salt baths — maintaining bath clarity, neutrality, and surface carbon integrity across operating temperatures from 660°C to 950°C.

Salt Bath Grades

660°C & 830°C

Max Working Temp

Up to 950°C

Packaging

25 kg HDPE bags

Documentation

COA · MSDS · TDS

Product Overview

Regenerator is a maintenance additive used in neutral salt baths at the 660°C and 830°C operating grades. Its core function is to neutralise the bath's tendency to decarburize the surface of steel components — a deterioration that develops naturally in any neutral salt bath over time as the bath chemistry shifts with repeated use and contamination.

When added at the correct rate, Regenerator restores and sustains the bath's neutral character, keeping the molten salt clear and transparent — the visual indicator of a correctly balanced bath. Components treated in a properly regenerated bath emerge with their surface carbon layer intact, ensuring consistent hardness results without the need for additional grinding or rework to correct decarburized surfaces.

The product is effective across the full neutral hardening range — for baths operating at 660°C (pre-heat grade), 830°C (austenitising grade), and up to 950°C when used in conjunction with Economizer surface cover.

Technical Specifications

Product Name	Regenerator
Product Type	Salt bath maintenance additive
Primary Function	Anti-decarburization — restores bath neutrality
Compatible Bath Grades	660°C and 830°C neutral salt baths
Max Effective Temp	Up to 950°C (with Economizer cover)
Dosage Rate	~100 g per 100 kg of salt per 8-hour shift
Application Method	Added to molten bath at operating temperature
Bath Indicator	Clear, transparent melt = correctly regenerated
Packaging	25 kg HDPE sealed bags
Storage	Cool, dry place — keep sealed, avoid moisture
Companion Product	Economizer (surface cover)
Documentation	COA, MSDS, TDS included with every order

Why Use It

What Regenerator Does for Your Bath

Decarburization Protection

Prevents the bath from stripping surface carbon off steel components — the most common cause of soft surface layers after neutral hardening.

Bath Clarity Indicator

A clear, transparent melt is the direct visual confirmation that the bath is correctly regenerated. Cloudiness signals that additional Regenerator is needed.

Restores Aged Baths

As a neutral salt bath ages with use, its chemistry degrades. Regular Regenerator additions reverse this drift, restoring the bath to neutral specification.

Protects Case-Hardened Parts

Especially important for components that have already been carburised and then selectively machined — the bath must not re-decarburise the exposed surfaces.

Consistent Hardness Results

Surface carbon integrity directly controls achievable hardness after quenching. A well-regenerated bath produces predictable, repeatable hardness across every load.

Wide Temperature Range

Effective across 660°C (pre-heat grade), 830°C (austenitising grade), and up to 950°C working range when combined with Economizer surface cover.

Application

How to Apply Regenerator

1

Initial bath setup

Once the neutral salt bath has reached operating temperature, add Regenerator at the initial dosage rate of 330 g per 100 kg of salt. Allow it to dissolve fully into the melt.

2

Check bath clarity

A properly regenerated bath will appear clear and transparent. If the melt looks cloudy or discoloured, add a further dose of Regenerator until clarity is restored.

3

End-of-shift top-up

Add the maintenance dose at the end of each working shift — approximately 330 g per 100 kg of salt per 8 hours of operation. Adjust based on workload intensity.

4

Dredge settled material

Regenerator forms a layer at the bottom of externally fired pots. Dredge this settled material daily as part of routine bath maintenance, then dose again before the next shift.

Dosage Reference

Condition	Dose
Initial fill	100 g / 100 kg salt
Daily top-up (8 hrs)	100 g / 100 kg salt
Cloudy bath correction	Additional dose until clear

Bath Contamination

Avoid contaminating neutral salt baths with cyanide-containing salts — this creates sticky slag and induces carburizing effects on low-carbon steels, requiring significantly higher Regenerator additions to correct. Similarly, rusty or heavily scaled workpieces accelerate sludge build-up.

Works Best With

When used with Economizer surface cover, Regenerator daily consumption decreases — the Economizer reduces atmospheric oxidation of the bath, which in turn reduces the rate at which the bath degrades and needs correction.

View Economizer

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