When this product direction fits
Protective systems selected for the actual temperature, thermal cycle, substrate and corrosive exposure.
High Temperature Protective Coatings
DY-19
High-Temperature Anti-Corrosion Coating
Protective systems selected for the actual temperature, thermal cycle, substrate and corrosive exposure.
Product overview
Protective systems selected for the actual temperature, thermal cycle, substrate and corrosive exposure.
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 guidance
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.
Product features and advantages
Dense, low-permeability film
Heat and weather resistance
Balanced hardness and flexibility
Hydrophobic and easy-clean surface
Typical application context
Applications and operating conditions
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
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
Project application guidance
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
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.
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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