Product

Nextherm Clean+

Thermal Oil System Cleaner (Series 211)

Fast-acting thermal oil system cleaner for mineral oil-based thermal systems; added at 5–10% treat rate and run at operating temperature to quickly dissolve carbon, varnish, and sludge deposits — substantially restoring thermal transfer efficiency without system shutdown.

Product Overview

NexthermClean+ is a fast-acting thermal oil system cleaner formulated for in-service use in mineral oil-based thermal systems. Added directly to the existing thermal oil at a treat rate of 5–10% of system volume, it works while the system runs at normal operating temperature — quickly and safely dissolving carbon, varnish, and sludge deposits that accumulate on heat exchanger surfaces and throughout the thermal circuit. By removing these deposits, thermal transfer efficiency is substantially restored, reducing energy consumption and improving overall system performance without the cost and downtime of a full drain-and-clean maintenance event.

To use, add NexthermClean+ to the existing thermal oil, bring the system to normal working temperature (minimum 100°C), and run for the recommended period before draining and replacing the thermal fluid. NexthermClean+ is compatible with all mineral oil-based thermal fluids. It is not compatible with synthetic thermal oils — confirm base fluid type before use.

Product Specifications
Product TypeThermal Oil System Cleaner
Treat Rate5 – 10% of system volume
Compatible WithMineral oil-based thermal systems
ApplicationThermal Oil Systems
Available Packaging20L · 208L · IBC

Key Features

In-Service Cleaning

Added to existing thermal oil and run at operating temperature — no shutdown required

Fast-Acting Formula

Quickly dissolves carbon, varnish, and sludge deposits throughout the thermal circuit

Restores Thermal Efficiency

Removing deposits substantially recovers lost heat transfer performance

Reduces Downtime & Costs

In-service cleaning minimises maintenance downtime and associated labour

Mineral Oil Systems Only

Compatible with all mineral oil-based thermal fluids; not suitable for synthetic systems

Technical Specifications

* Values shown are typical and may vary within specification limits. Viscosity values in mm²/s.

Technical Documents

Technical Data Sheet

Complete product specification and performance data

PDF 245KB

Safety Data Sheet

Safety Information and handeling guidelines

PDF 245KB

Product Brochure

Comprehensive product overview and applications

PDF 245KB

Packaging Options

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Technical Data Sheet: Nextherm Clean+

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Product Brochure: Nextherm Clean+