Thermal Insulation Coatings

DY-24

High-Temperature Thermal Insulation Coating

High-temperature thermal insulation coating for compatible boiler, furnace, industrial-kiln and rotary-kiln surfaces requiring heat-loss control.

Technical parameters Contact technical team

High Temperature Thermal Insulation

DY-24 is a high temperature thermal insulation coating for compatible external surfaces on boilers, industrial kilns, rotary kilns, heating furnaces and other hot equipment. It is intended for coating-based heat-loss control where the substrate, temperature and geometry fit the verified product conditions. A furnace insulation coating or rotary kiln insulation coating must be designed as a complete build-up rather than applied to full thickness in one pass. Review the actual service temperature, substrate material, existing refractory or coating, required total thickness, access and drying window. Application quality depends on preparation, staged thickness control, drying between coats and inspection before the equipment returns to service.

An inorganic nano-binder coating containing ceramic microspheres, silica gel powder, inorganic fibres, potassium titanate whiskers and rare-earth oxides for high-temperature insulation service.

Problems addressed

Heat loss from high-temperature equipmentComplex shapes that are difficult to insulateHigh-temperature external surfaces

Rotary Kiln Heat-Loss Control

When this product direction fits

Thermal-management materials for equipment, pipework and building assemblies where heat-transfer control is required.

How this system differs

This series manages heat transfer; it does not replace a structural repair, leak repair or corrosion-control system where those problems are active.

What must be confirmed

Suitability depends on the actual substrate, medium, concentration, temperature cycle, exposure mode and application window. Final system selection and project-specific instructions require technical review.

DY-24, DY-23 or DY-22?

DY-24 owns the high-temperature furnace and kiln insulation intent. DY-23 is an aerogel coating for industrial equipment and complex surfaces, while DY-22 addresses broader tank, pipeline and boiler insulation contexts. Confirm the verified range and substrate.

Compare DY-23 aerogel insulation coating

Product features and advantages

Low thermal conductivity

Suitable for thick-film application

Applicable to metallic and refractory substrates

Water-based tool cleanup

Typical application context

Boiler and Industrial Kiln Insulation

Power & Energy · Steel · Cement: application review for Boiler · Industrial kiln · Rotary kiln.

Thermal-management materials for equipment, pipework and building assemblies where heat-transfer control is required. Confirm the substrate, exposure and maintenance access before final selection.

Suitable equipment

BoilerIndustrial kilnRotary kilnHeating furnaceHigh-temperature equipment

Industries

Power & Energy

Steel

Cement

Petrochemical & Refining

Substrates and areas

External equipment surfaces · Furnace and kiln shells · Refractory surfaces

Operating conditions

450°C to 1350°C service range stated in the source document · High-temperature heat loss

DY-24

Technical parameters

Only values available in the reviewed product source are shown.

Technical parametersValueSource

Recommended Total Thickness3-15 mm

Full Cure TimeAt least 72 h before service

Service Temperature450°C to 1350°C

Tensile Strength≥15 kPaGB/T 17371-2008

AppearanceGrey; smoothGB/T 1729-1979

Density≤1000 kg/m³ (slurry)GB/T 17371-2008

Volume Shrinkage≤16%GB/T 17371-2008

Container StateUniform slurry after stirringGB/T 6753.3-1986

Adhesion3 MPaGB/T 9286-1998

Hardness1HGB/T 6739-2006

Heat Storage Stability30 d; no abnormalityGB/T 6753.3-1986

Water Resistance168 h; no blistering, cracking or delaminationGB/T 1733-1993

Alkali Resistance168 h; no blistering, cracking or delaminationGB/T 9755-2001

Salt Spray Resistance500 h; no blistering, rust, cracking or delaminationGB/T 1771-2007

Aging Resistance500 h; no blistering, cracking, delamination or obvious discolourationGB/T 23987-2009

Thermal Conductivity≤0.05 W/(m·K)GB/T 22588-2008

Theoretical Coverage1-1.2 kg/m² per 1 mm thicknessFactory test

Application and Thickness Control

Confirm substrate condition, contamination, corrosion, defects and access before work starts.

Remove oil, dust and loose material; prepare cleanliness and profile to the reviewed product procedure.

Check compatibility of retained coatings and complete a representative trial area when the existing system is uncertain.

Prepare and mix only according to the product source; do not improvise ratio, thinner or pot life.

Build a continuous system in controlled layers, with special attention to edges, welds, joints and shadow zones.

Protect the applied area through curing, then inspect continuity, visible defects and recorded source-backed acceptance items.

Source-specific procedure

Surface Preparation

Metal: remove oil, rust, scale and old organic coatings; Sa 2.5 or St 3 for local repair. Non-metal: remove coke, dust and loose material.

Application Environment

5-60°C; relative humidity ≤85%; substrate at least 3°C above dew point.

Mixing

Single-component paste; stir thoroughly before use.

Application Tools

Brush, trowel, scraper or texture application.

Thickness per Coat

Build thickness in multiple coats; do not apply the full thickness in one pass.

Curing

Allow each coat to dry fully; minimum 72 h final drying before service.

Packaging, storage and transport

PackagingSingle pail, 20 kg

StorageCool, dry and ventilated area; 5-40°C

Shelf Life12 months

TransportProtect from unsuitable temperature and contamination

Official product source: High-temperature thermal insulation energy-saving coating 450°C-1350°C / DY-24 PDF

Quality checks

Check surface-preparation records, environmental conditions, layer continuity, edges, welds and visible defects. Use only acceptance criteria stated in the reviewed product or project documents.

Maintenance and repair

Inspect representative high-risk locations during planned maintenance. Clean the area, identify the cause of damage, feather sound edges and verify compatibility before local repair.

Scope and limitations

Technical documents

Documents for project evaluation

TDS, SDS, MSDS, test reports and other project-related technical documents are available based on specific project requirements. Please contact us through WhatsApp.

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Frequently Asked Questions

What is a high-temperature thermal insulation coating?

It is a coating system built in controlled layers to reduce heat flow from a compatible hot surface. Selection depends on temperature, substrate, geometry and required build-up.

Can insulation coating be used on industrial kilns?

DY-24 can be reviewed for compatible industrial-kiln and furnace surfaces within its verified product conditions. Substrate and application access must be checked.

How is a coating system selected for rotary-kiln heat loss?

Review shell temperature, operating cycle, existing surface condition, target location, total build-up, access and drying time before specifying the system.