High Temperature Coatings

DY-19

High-Temperature Anti-Corrosion Coating

High temperature anti-corrosion coating for prepared furnace shells, hot pipelines, process equipment and hot steel structures.

Technical parameters Contact technical team

DY-19 high-temperature anti-corrosion coating package

High Temperature Anti-Corrosion Applications

DY-19 is a high temperature anti-corrosion coating for prepared metal surfaces on furnace shells, hot pipelines, process equipment and hot steel structures. It is intended to address thermal oxidation and atmospheric corrosion that may occur during elevated-temperature operation and cooldown. The coating forms a dense protective film for external steel surfaces where heat, weather and corrosion need to be reviewed together. Selection is not based on temperature alone: the actual service temperature, thermal cycling, substrate condition, surrounding atmosphere and application access must all be confirmed. For service primarily associated with the stated 300–800°C range, compare the project requirements with DY-17 rather than treating the two products as interchangeable.

A highly cross-linked polymer and organosiloxane coating designed to protect metal substrates against thermal oxidation and atmospheric corrosion during elevated-temperature service and cooldown.

Problems addressed

Thermal oxidationCorrosion during heat and cooldown cyclesAcidic or alkaline atmospheric exposure

Selection by Temperature and Thermal Cycling

When this product direction fits

Protective systems selected for the actual temperature, thermal cycle, substrate and corrosive exposure.

How this system differs

The selection is driven by documented service temperature, thermal cycling and corrosive exposure rather than temperature alone.

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-19 or DY-17?

DY-19 is positioned for hot steel and equipment within its verified service conditions, while DY-17 owns the stated 300–800°C selection intent. Confirm actual temperature, thermal cycling, substrate and exposure before choosing.

Compare the DY-17 300–800°C high-temperature coating

Product features and advantages

Dense, low-permeability film

Heat and weather resistance

Balanced hardness and flexibility

Hydrophobic and easy-clean surface

Typical application context

Corrosion Protection for Furnace Shells and Hot Pipelines

Power & Energy · Petrochemical & Refining · Steel: application review for Industrial kiln · High-temperature pipeline · Furnace shell.

Protective systems selected for the actual temperature, thermal cycle, substrate and corrosive exposure. Confirm the substrate, exposure and maintenance access before final selection.

Suitable equipment

Industrial kilnHigh-temperature pipelineFurnace shellProcess equipment

Industries

Power & Energy

Petrochemical & Refining

Steel

Industrial Equipment

Substrates and areas

External metal surfaces · Equipment shells · High-temperature steelwork

Operating conditions

Dry heat · Thermal oxidation · Atmospheric corrosion

DY-19

Technical parameters

Only values available in the reviewed product source are shown.

Technical parametersValueSource

Mixing Ratio9:1 by weight (base:hardener)

Pot Life5-8 h

Recommended Dry Film Thickness75 μm

Touch Dry Time2 h

Hard Dry Time24 h

Full Cure Time7 days

Service Temperature-40°C to 300°C

Container StateUniform after stirring, without lumpsGB/T 3186-2006

AppearanceGrey series, colour adjustable; smooth filmGB/T 9761-2008

Solid Content≥55%GB/T 1725-2007

Density1.3 kg/LGB/T 6750-2007

Hardness2HGB/T 6739-2006

Thermal Cycling10 cycles, no abnormalityGB/T 9278-2008

Flexibility≤1 mmGB/T 6724-2007

Impact Resistance≥50 cmGB/T 1732-1993

AdhesionGrade 1GB/T 9286-1998

Fineness≤15 μmGB/T 6753.1-2007

Viscosity30-40 s (No. 4 cup)GB/T 6753.4-1998

Salt Spray Resistance25°C, 5% NaCl, 2000 h; no blistering, rust, cracking or delaminationGB/T 1771-2007

Acid Resistance25°C, 10% H₂SO₄ 30 d and 10% HCl 30 d; no blistering, rust, cracking or delaminationGB/T 9274-1988

Alkali Resistance25°C, 10% NaOH, 30 d; no blistering, rust, cracking or delaminationGB/T 9274-1988

Damp Heat Resistance47°C, RH 96%, 1000 h; no blistering, cracking, delamination, rust or obvious discolourationGB/T 1766-2008

Theoretical Coverage0.18 kg/m² at 75 μmFactory test

Application and Inspection

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

Abrasive blast to Sa 2.5 with 30-60 μm roughness; local repair to St 3.

Application Environment

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

Mixing

Add hardener slowly to the mixed base at 9:1 by weight; mechanically mix for 3-5 minutes.

Application Tools

Brush, roller, air spray or airless spray.

Curing

Touch dry 2 h, hard dry 24 h, full cure 7 days.

Precautions

Use xylene, n-butanol or an epoxy-compatible thinner only if dilution is necessary.

Packaging, storage and transport

PackagingTwo-component, 20 kg/pail

StorageDry, cool area away from sunlight, heat and ignition sources; 5-40°C

Shelf Life12 months unopened

TransportMaintain 5-40°C

Official product source: Reviewed DAYU-X technical source for DY-19 high-temperature anti-corrosion coating

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 anti-corrosion coating?

It is a protective coating selected to resist corrosion and thermal oxidation on compatible substrates during elevated-temperature service. Selection should be confirmed against temperature, cycling, atmosphere and surface condition.

What equipment is DY-19 intended for?

DY-19 can be reviewed for prepared furnace shells, hot pipelines, process equipment and hot steel structures within its verified service conditions.

How do I choose between DY-19 and DY-17?

Review the actual operating range first. DY-17 is positioned for the stated 300–800°C range; DY-19 has a different verified range. Thermal cycling, exposure and substrate condition also affect selection.