Thinner‑Based Foundry Coatings

Formulated for rapid drying, robust metal penetration resistance, and premium surface finish on fast‑cycle lines.

Fast Drying Brush / Dip / Spray Flame‑Dry Capable Anti‑Penetration
Solvent/thinner-based refractory coating – application

FAQs

When should I choose thinner based products?

For rapid drying and fast cycle lines requiring strong metal penetration resistance.

Do thinner based coatings impact safety or VOC?

They can. We’ll advise safe handling and suggest water-based alternatives where appropriate.

What application methods are supported?

Brush/swab, controlled dip, and air/airless spray with process-specific parameters.

Thinner Based Products

High-performance coatings with specialized thinners for quick drying and superior metal penetration resistance. Formulated for fast cycle times and robust surface quality.

Applications

  • High throughput casting lines
  • Areas demanding rapid drying between coats
  • Critical surfaces requiring minimal metal penetration

Application Methods

  • Brush / swab
  • Controlled dip
  • Air/airless spray

DFCOAT GP-11 — Versatile Graphite-Based Solvent Coating for Cast Iron

DFCOAT GP-11 graphite-based solvent coating

DFCOAT GP-11 is a high‑performance, graphite‑based solvent coating in paste form, specifically designed for general‑purpose applications on cast iron (C.I.) castings. Offering flexibility in application, DFCOAT GP-11 is perfect for various foundry processes, whether brushed, dipped, or sprayed.

Flexible Application

Apply by brush, dip, or spray for versatile processes.

Heat Resistant

Excellent protection in high‑temperature environments.

Ready‑to‑Use

No preparation needed; use directly from the container.

Durable Finish

Hard surface that resists wear and tear.

Application Guidelines

  • Brushing: Use DFCOAT GP‑11 as‑is after thorough mixing. Apply evenly for complete coverage.
  • Dipping/Spraying: Dilute with 40–50% IPA. Use a separate tank for consistent results.

DFCOAT G-340 — High-Solid Solvent-Based Graphite Coating

DFCOAT G-340 high-solid solvent-based graphite coating

DFCOAT G-340 is a premium, high-solid, solvent-based graphite coating engineered for versatile foundry applications. Formulated with natural flake graphite as its primary refractory filler, it delivers a thick, durable layer that ensures exceptional heat resistance, smooth surface finishes, and superior protection for cast iron (CI) castings.

Ready‑to‑Use

No preparation needed; use directly from the container.

Heat Resistant

Excellent protection in high‑temperature environments.

Versatile Application

Brush, dip, or spray per your process.

Durable Finish

Hard surface that resists wear and tear.

Applications

  • Automotive castings
  • Industrial machinery components
  • General‑purpose foundry operations

DFCOAT-Z 100 — Zircon-Based Coating for Heavy Steel Casting

DFCOAT-Z 100 zircon-based coating for heavy steel castings

DFCOAT-Z 100 is a high-performance zircon-based coating specifically designed for heavy steel casting applications. With its exceptional refractory properties and superior bonding capability, it delivers a dense, compact layer that enhances mold and core durability while ensuring a smooth and consistent casting surface. Its versatility makes it compatible with various mold and core types, including green sand, CO₂ set, and resin-bonded sand systems.

High Refractory

Excellent resistance for heavy-duty steel castings.

Dense Layer

Forms a robust, defect‑reducing surface.

Non‑Wettable

Non‑reactive to minimize sticking and reactions.

Versatile

Compatible with green sand, CO₂ set, and resin‑bonded systems.

Application Guidelines

  • Preparation: Ensure the surface is clean and dry. Stir thoroughly to distribute fillers and binders evenly.
  • Dilution: 100 parts paste + 10 parts alcohol for brushing/spraying.
  • Brushing: Use for small or intricate areas.
  • Spraying: Use suitable spray equipment for uniform coverage on larger surfaces.
  • Ignition: Ignite immediately after application to form a hard, durable surface.

DFCOAT-Z 119 — Premium Zircon-Based Foundry Coating

DFCOAT-Z 119 coating sample DFCOAT-Z 119 on steel casting application

DFCOAT-Z 119 is a premium zirconium silicate-based coating developed specifically for heavy steel casting and high-temperature applications, such as steel and nickel‑chromium‑based castings. Its advanced formulation provides a durable, smooth, and protective layer, ensuring excellent casting results under demanding conditions. Compatible with all synthetic binder systems for sand molds and cores.

Optimized for High Temp

Withstands extreme temperatures and aggressive alloys.

Superior Finish

Smooth, uniform layer; minimal post‑processing.

Defect Prevention

Prevents metal penetration and sand fusion.

Versatile

Suitable for all synthetic binder systems.

Application Guidelines

  • Preparation: Ensure molds/cores are moisture‑free and clean. Mix thoroughly to uniform consistency.
  • Dilution & Application: 100 parts paste + 10 parts alcohol. Apply by brush for precise, even coating. Ignite after application to form a durable, heat‑resistant layer.

DFCOAT G-310 — Graphite Solvent-Based Coating

DFCOAT G-310 graphite solvent-based coating

DFCOAT G-310 is a premium, ready-to-use graphite solvent-based coating designed specifically for cast iron (CI) and spheroidal graphite (SG) castings. This high-performance coating provides excellent heat resistance and a smooth, durable finish, helping reduce post-casting finishing work while improving overall casting quality.

High Heat Resistance

Protects at high temperatures; maintains integrity.

Ready-to-Use

No prep required; use directly from container.

Spray Application

Easy spray for uniform coverage on all sizes.

Eco-Friendly

Low emissions; safe handling properties.

Recommended Applications

  • Cast Iron (CI) castings — all component types
  • Spheroidal Graphite (SG) castings — ductile iron
  • Automotive components — engine/brake parts
  • Industrial machinery — heavy-duty equipment

DFCOAT-ZF 380 — High-Performance Zircon-Based Solvent Coating

DFCOAT-ZF 380 zircon-based solvent coating sample DFCOAT-ZF 380 flood coating application

DFCOAT-ZF 380 is a zircon-based, solvent-borne coating specifically developed for heavy steel casting applications. Engineered for synthetic and silicate binder systems, it excels in high-temperature processes and is tailored for flood coating, providing efficient, even coverage and outstanding performance on large molds and cores.

High-Temp Casting

Excellent refractory properties under extreme heat.

Flood Coating

Designed for even, comprehensive coverage.

Versatile

Works with synthetic & silicate binders.

Dense Barrier

Protects against penetration and sand fusion.

Application Guidelines

  • Preparation: Remix thoroughly to a uniform, homogeneous consistency.
  • Dilution: 100 parts paste + 10–15 parts alcohol, as needed.
  • Process: Brush or flood; ignite immediately after application to form a durable, heat‑resistant layer.
  • Large Molds: Coat and ignite sequential sections for best results.
  • Layering: Allow the first coat to burn out and cool to ambient before subsequent layers.

DFCOAT-SP 115 — Advanced Zircon-Based Solvent Coating with High-Temperature Fillers

DFCOAT-SP 115 advanced zircon-based solvent coating

DFCOAT-SP 115 is a premium-grade, solvent-based coating formulated with a combination of zircon and high-temperature fillers, enhanced by a superior binder system. The special suspending gel strength ensures uniform dispersion of particles, preventing settling and maintaining consistent coating thickness across applications.

Premium Fillers & Binder

High-quality zircon and durable binder for stable, optimum performance.

Suspending Gel Strength

Prevents settling; delivers smooth, uniform coverage.

Versatile Compatibility

For synthetic, silicate, and resin-bonded systems.

Optimized for Small Castings

Ideal for small iron/steel and light-section molds/cores.

Applications

  • Small Iron Castings
  • Steel Castings
  • Light Section Molds and Cores
  • Foundries using synthetic, silicate, and resin-bonded binders

DFCOAT-Z 256 — High-Performance Spirit/IPA-Based Zircon Coating

DFCOAT-Z 256 spirit/IPA-based zircon coating

DFCOAT-Z 256 is a versatile, spirit/IPA-based zircon coating designed for medium to heavy steel and cast iron applications. Compatible with sodium silicate, alpha set, and cold box cores/molds, its high filler ratio and superior refractory properties make it suitable for general-purpose foundry use.

Ready‑to‑Use

Apply directly; no prep needed.

Broad Compatibility

Sodium silicate, alpha set, cold box systems.

High Filler Ratio

Enhanced coverage and refractoriness.

Heavy‑Duty

Tailored for medium to heavy castings.

Advantages & Benefits

  • Improved Casting Quality — Excellent finishes reduce fettling.
  • Heat Resistance — Durable under high temperatures.
  • Defect Prevention — Minimizes blistering, cracking, and scaling.
  • Higher Coverage — Optimal thickness improves efficiency.
  • Ease of Ignition — Forms a hard, durable surface after ignition.

DFCOAT-Z 256 (S) — High-Quality Zircon Coating with IPA Base

DFCOAT-Z 256 (S) IPA-based zircon coating

DFCOAT-Z 256 (S) is a premium spirit (IPA)-based zircon coating, specially formulated for medium to heavy steel and cast iron castings. Designed for molds and cores prepared with sodium silicate, Alfa set, and cold box binder systems, this ready-to-use coating features a high filler ratio and thixotropic rheology for superior, consistent performance from small to heavy sections.

High Filler Ratio

Enhanced refractoriness and coverage.

Thixotropic Rheology

Uniform suspension; prevents settling.

Ready‑to‑Use

No mixing or prep needed.

Versatile Binders

Works with sodium silicate, Alfa set, cold box.

Applications

  • Medium to heavy steel castings
  • Cast iron applications
  • Molds and cores of all sizes

DFCOAT-Z 318 — Premium Spirit-Based Zircon Coating

DFCOAT-Z 318 coating sample DFCOAT-Z 318 application on MS casting

DFCOAT-Z 318 is a high-performance, spirit-based zircon coating, specifically developed for MS castings, cast iron, and WCB-grade applications. With thixotropic properties and high solids content, it provides exceptional suspension, coverage, and ease of application while maintaining cost-effectiveness.

Thixotropic Properties

Excellent suspension stability; prevents settling.

Versatile Methods

Brush, swab, or flood for flexible use.

High Solids

Enhanced coverage and refractoriness.

Cost-Effective

Reliable results without compromising performance.

Applications

  • Mild Steel (MS) castings
  • Cast iron applications
  • WCB-grade castings

DFCOAT-Z 322 — Premium Spirit-Based Zircon Coating

DFCOAT-Z 322 spirit-based zircon coating for small castings

DFCOAT-Z 322 is a reliable, solvent-based zircon coating tailored for small steel and cast‑iron castings. This ready‑to‑use formulation provides cost‑effective performance without compromising on surface quality or durability, ideal for smaller components that require fine finishes.

Cost‑Effective

Excellent performance for small castings at value pricing.

Surface Quality

Smooth, high‑quality finishes; less post‑work.

Zircon Stability

Superior thermal stability at casting temps.

Versatile

Brush, dip, or spray per process needs.

Applications

  • Small Steel Castings
  • Small Cast Iron Components
  • Alloy Steel castings
  • Precision finishes and defect‑free surfaces

DFCOAT AS-410 — Semi-Paste Solvent-Based Coating for Castings

DFCOAT AS-410 semi-paste solvent-based coating

DFCOAT AS-410 is a semi-paste, solvent-based coating designed for use with all grades of cast iron and non-ferrous heavy metal castings. It resists sand expansion and metal penetration, improving casting quality by minimizing common defects. The advanced binder system enhances adhesion, durability, and flexibility—ideal for small automotive castings to reduce finishing costs.

Defect Control

Resists sand expansion and metal penetration.

Superior Adhesion

Strong bond to core surfaces during casting.

Smooth Finish

High-quality surfaces with lower fettling.

Versatile Methods

Brush, spray, or dipping application.

Mixing and Application

  • Mixing: Supplied ready for use. If lower viscosity is desired, dilute with a suitable solvent per process needs.
  • Brush: Consistent, controlled application on small castings.
  • Spray: For larger/complex shapes where uniformity is required.
  • Dipping: Thorough coating of molds or cores.
  • Drying/Curing: Allow to dry fully; forms a hard, crack-resistant surface without blistering or scaling.

DFCOAT AS-401 — General-Purpose Refractory Coating for Automotive Castings

DFCOAT AS-401 refractory coating in application

DFCOAT AS-401 is a paste‑form refractory coating formulated for small to medium automotive castings. It addresses sand expansion defects and metal penetration, delivering superior casting quality with consistent, high‑precision surfaces. Supplied as a semi‑paste, it can be diluted with thinner to achieve the desired viscosity for brushing or spraying.

Defect Prevention

Resists sand expansion and metal penetration.

Strong Adhesion

Coating remains intact throughout casting.

Flexible Application

Dilution enables brush or spray methods.

Precise Finish

Ideal for high‑integrity automotive surfaces.

Mixing and Application

  • Mixing: Dilute 100 parts paste with 15–20 parts solvent to target viscosity; mix thoroughly to uniform consistency.
  • Brush: Precise, controlled coating for small areas or complex shapes.
  • Spray: Uniform coverage on larger surfaces.
  • Dipping: Can be considered as per process needs.
  • Drying: Allow to dry fully to form a hard, durable surface.

DFCOAT AS-110 — General-Purpose Refractory Coating for Automotive Castings

DFCOAT AS-110 refractory coating in application

DFCOAT AS-110 is a semi‑paste refractory coating designed specifically for small automotive castings. With a highly refined aluminosilicate mineral composition, it effectively addresses sand expansion and metal penetration to ensure superior casting quality. The advanced binder system ensures strong adhesion on core surfaces, delivering durable, defect‑free results—even on complex shapes.

Defect Prevention

Reduces sand expansion and metal penetration.

Advanced Adhesion

Strongly adheres to core surfaces.

Versatile Application

Brush, spray, dip, or flood as needed.

Wide Compatibility

For all grades of cast iron and non‑ferrous heavy metals.

Applications

  • Small automotive castings requiring high precision
  • Molds and cores across synthetic binder systems
  • Brush, spray, dipping, or flooding methods

Mixing and Application

  • Mixing: Supplied ready‑to‑use. If viscosity adjustment is required, dilute with a suitable solvent per process needs.
  • Brush: Targeted areas or intricate shapes.
  • Spray: Uniform coverage over larger surfaces.
  • Dip / Flood: Consistent coating on multiple cores or molds.
  • Drying: Allow adequate drying to achieve a hard, defect‑free surface.

DFCOAT AS ADM — Air-Drying Refractory Coating for Casting

DFCOAT AS ADM air-drying refractory coating

DFCOAT AS ADM is a reddish-brown, ready-to-use refractory coating specially formulated for air-drying applications. Its graphite‑aluminosilicate composition ensures superior thermal stability and resistance to sand expansion defects and metal penetration, contributing to smooth, defect‑free castings.

Air‑Drying Efficiency

Dries quickly at ambient temperatures; no ignition required.

Defect Prevention

Reduces sand expansion and metal penetration.

Thermal Stability

High refractoriness; resists cracking or blistering.

Ease of Use

Ready‑to‑use; brush, dip, or spray.

Applications

  • Suitable for synthetic binder molds and cores
  • Brush, dip, or spray for uniform coverage and protection
  • Beneficial for high‑temperature ferrous and non‑ferrous castings

Mixing and Application

  • Mixing: Supplied ready‑to‑use; no dilution required.
  • Brushing: Precise application on smaller or intricate surfaces.
  • Spraying: Uniform coverage on large surfaces or multiple molds.
  • Dipping: Complete coating of molds/cores for consistency.
  • Drying: Allow 50–90 minutes to air‑dry at ambient temperature before casting.

DFCOAT ASG-456 — High-Performance Graphite-Aluminosilicate Solvent-Based Coating

DFCOAT ASG-456 graphite-aluminosilicate coating

DFCOAT ASG-456 is a black, solvent‑based refractory coating formulated with graphite and high aluminosilicate fillers for critical casting applications. It resists metal penetration and prevents sand expansion defects, forming a dense, compact layer on drying for smooth, durable surfaces. Compatible with CO₂ silicate, green sand, and synthetic binder systems.

Anti‑Veining

Prevents veining defects in critical castings.

Hard Surface

Ignites to form a durable, compact coating.

Wide Range

Works with CO₂, green sand, and synthetic binders.

Smooth Finish

Excellent finish quality; lower fettling.

Applications

  • Critical casting processes requiring anti‑veining
  • CO₂ silicate, green sand, and synthetic binder systems
  • Ferrous and non‑ferrous molds and cores

DFCOAT GSM-200 — High-Performance Magnesia Solvent-Based Coating for Green Sand Molds

DFCOAT GSM-200 magnesia solvent-based coating for green sand molds

DFCOAT GSM-200 is a magnesia-based, solvent-borne coating developed specifically for green sand mold systems. Its white, aluminum silicate formulation incorporates high-quality refractory materials to protect against sand expansion and metal penetration, delivering smooth surfaces with reduced fettling.

Enhanced Surface Quality

Prevents penetration and contamination for defect‑free castings.

Reduced Fettling Costs

High‑quality finishes minimize post‑processing.

Superior Adhesion

Forms a durable, defect‑resistant layer.

Hard Coating

Ignition creates a dense, durable surface.

Efficient Application

High coverage and uniform thickness.

Applications

  • Designed for green sand mold systems
  • Ferrous and non‑ferrous castings requiring smooth surfaces
  • Mitigates sand expansion and metal penetration

DFCOAT GSM 1550 — Alumino Silicate Solvent-Based Coating

DFCOAT GSM 1550 alumino silicate solvent-based coating

DFCOAT GSM 1550 is a specialized alumino silicate solvent-based refractory coating designed to enhance the surface finish of castings while reducing fettling and cleaning costs. Its formulation addresses sand expansion and metal penetration to deliver high-quality results and productivity.

Enhanced Casting Quality

Prevents sand penetration and contamination for smoother casts.

High Refractory

Resists sand expansion and penetration; maintains integrity.

Versatile

Suitable for cast iron and non‑ferrous heavy metals.

Cost Efficient

Reduces fettling and cleaning time.

Applications

  • Cast iron grades and non‑ferrous heavy metal castings
  • Complex molds requiring smooth, clean surfaces
  • Operations demanding high surface finish standards

DFCOAT MP-312 — Premium Magnesite Solvent-Based Coating

DFCOAT MP-312 magnesite solvent-based coating (paste)

DFCOAT MP-312 is a high‑performance magnesite solvent‑based coating in paste form, designed for manganese steel castings, especially critical crusher components. It provides excellent suspension, coverage, and bonding strength for a durable, high‑quality finish. The coating can be diluted to meet application requirements for flexible use.

Versatile Application

Suitable for brush or flood with uniform coverage.

Dilution Flexibility

Dilute to desired consistency as needed.

Excellent Suspension

Strong bonding and finish on molds/cores.

Durable Finish

Resists blistering and cracking.

High‑Performance

Formulated for Mn steel crusher parts.

Ideal for Manganese Steel Components

  • Jaw Plates
  • Mantles & Concaves
  • Blow Bars & Hammers
  • Mill Rings & Liners
  • JCB Teeth & Bucket Components

Compatible Binder Systems

  • Alphaset
  • CO₂ Silicate
  • Green Sand

DFCOAT M-311 — High-Performance Magnesite Solvent-Based Coating

DFCOAT M-311 magnesite solvent-based coating

DFCOAT M-311 is a ready-to-use, high-performance magnesite solvent-based coating designed specifically for manganese steel castings. Formulated with calcined magnesite and IPA-based solvents, it provides excellent suspension, coverage, and bonding strength for durable, high-quality finishes.

Superior Quality

Prevents penetration/contamination; smooth surfaces.

High Refractory

Magnesite composition resists sand expansion.

Versatile

Ready-to-use; excellent brushability and floodability.

Efficient

Reduces fettling and post-cleaning.

Ideal for Manganese Steel Components

  • Jaw Plates
  • Mantles
  • Blow Bars
  • Hammers
  • Mill Rings
  • Bowl Liners
  • Side Plates
  • Linear Plates
  • Pin Protectors
  • Roller Shells
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Key Benefits

Discover the advantages of our premium foundry coatings

Understanding Refractory Coatings

Refractory coatings (also called foundry coatings, protective paints, blackings, and washes) are essential to metal casting. They suspend high‑temperature refractory minerals in a liquid carrier to create a protective barrier between molten metal and the core or mold.

As the coating is applied and dried, the carrier evaporates and a robust refractory layer remains. This layer provides several critical functions:

  • Protects furnace and mold walls from thermal shock and chemical attack
  • Extends the lifespan of molds and cores
  • Prevents burn‑on and metal penetration
  • Improves casting surface quality
  • Reduces defects and improves dimensional accuracy

When and Why Use Refractory Coatings

Coatings protect surfaces from casting defects and operational damage, improving quality and efficiency across foundry operations.

Surface Protection

Barrier against molten metal and thermal shock to prevent defects.

Improved Cleanliness

Prevents penetration into sand molds; reduces cleaning time/costs.

Sand Defect Repair

Repairs surface imperfections; reduces scrap.

Cost Reduction

Extends mold life; reduces material waste and rework.

Key Components of Refractory Coatings

  • Refractory Minerals — Provide high‑temperature resistance; primary protective layer
  • Carrier Liquid — Water or alcohol‑based for easy application
  • Binder — Ensures adhesion to the mold surface
  • Suspending Agents — Keep particles evenly distributed
  • Special Additives — Biocides, wetting agents, performance enhancers
Industry Standard: Widely used across foundries; formulations are selected based on economics and application requirements.

Enhanced Surface Finish

Ensures optimal performance and reduces defects

High Thermal Stability

Withstands temperatures from 1,750°C to 1,800°C

Chemical Stability

Resistant to chemical reactions at high temperatures

Recyclability

Increases recoverable sand, enhancing recyclability

Reduced Fettling

Decreases fettling time and cost; easier knockout

Easy Application

Simple to apply on molds and cores