When this product direction fits
Barrier protection for compatible substrates exposed to identified acids, alkalis, salts or process chemicals.
Acid & Chemical Resistant Coatings
DY-13
High-Temperature Flue-Gas Anti-Corrosion Coating
Barrier protection for compatible substrates exposed to identified acids, alkalis, salts or process chemicals.
Product overview
Barrier protection for compatible substrates exposed to identified acids, alkalis, salts or process chemicals.
A two-component phenolic-modified epoxy system with silicon carbide, ceramic powder, graphite and corrosion-inhibiting fillers for flue-gas equipment and process surfaces.
Problems addressed
Sulfuric-acid dew-point corrosionAcidic flue-gas corrosionParticle erosion combined with chemical attack
Selection guidance
How this system differs
Selection requires the actual chemical, concentration, exposure mode, substrate and temperature; a generic corrosion label is not sufficient.
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 chemical barrier
Acid and alkali resistance
Adhesion to multiple compatible substrate types
Wear resistance from ceramic and graphite fillers
Typical application context
Applications and operating conditions
Power & Energy · Chemical & Fertilizer · Petrochemical & Refining: application review for Desulfurization tower · Scrubber · Cooling tower.
Barrier protection for compatible substrates exposed to identified acids, alkalis, salts or process chemicals. Confirm the substrate, exposure and maintenance access before final selection.
Suitable equipment
Industries
Power & Energy
Chemical & Fertilizer
Petrochemical & Refining
Steel
Substrates and areas
Metal · Concrete · Brickwork · Compatible FRP and ceramic surfaces
Operating conditions
Dry heat ≤250°C; source states 280°C limit · Wet heat or immersion ≤200°C · Identified acidic media
DY-13
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 Thickness70 μm in application section
Theoretical Coverage0.16 kg/m² at 70 μm
Touch Dry Time<2 h
Hard Dry Time24 h
Full Cure Time10 days
AppearanceGrey, matt and smoothFactory test
Density1.8 g/mlFactory test
Product Table Coverage2.0-2.5 m²/kg at 200 μmFactory test
Fineness≤80 μmGB/T 1724
Viscosity50-60 s at 25°C (No. 4 cup)GB/T 1723
Solid Content75%GB/T 1725
AdhesionGrade 1GB/T 1720
Impact Resistance4.0 JGB/T 1732
Hardness7HGB/T 6739
Salt Spray Resistance1000 h; no cracking, rust spots or blisteringGB/T 1771
Chemical Resistance10% H₂SO₄ 30 d; 10% NaOH 30 d; 3% NaCl 30 d; film intact and unchangedGB/T 1763
Application Section Coverage0.16 kg/m² at 70 μm dry film thicknessProduct source
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 ≥3°C above dew point.
Mixing
Mix base and hardener at 9:1 by weight for 3-5 minutes.
Application Tools
Brush, roller, air spray or airless spray.
Curing
Touch dry <2 h, hard dry 24 h, full cure 10 days.
Precautions
Confirm gas composition, chemical medium, concentration, temperature and condensation conditions before selection.
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: High-temperature flue-gas anti-corrosion coating / DY-13 source document
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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Industries
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