Two-component epoxy systems are widely used in adhesives, sealants, potting, electronic encapsulation, composites, industrial flooring, civil engineering, and protective applications where high mechanical strength, chemical resistance, and durable adhesion are essential. However, formulating with these systems presents unique challenges: filler and nano-filler dispersion, viscosity control at high filler loading, settling and sagging, wetting on oily or contaminated substrates, levelling, foam generation, colour stability in anhydride-cured systems, compatibility with amine curing agents, and adhesion failure on metal and non-metal surfaces. Additives must be carefully selected to maintain compatibility with both the epoxy resin and the curing agent without adversely affecting curing speed, pot life, storage stability, transparency, colour, or final film properties.
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Two-component Epoxy System
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Application Classification
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Model
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Product Type
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Product Characteristics
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Dispersant
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KBS-F5000A
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Acid polyester compounds
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General-purpose cost-effective viscosity reducing dispersant
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KBS-F9100
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Acid polyester compounds
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Highly efficient viscosity reduction with high fillers
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KBS-F9100A
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Acid polyester compounds
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Strong viscosity reduction with high fillers, especially suitable for viscosity reduction of thermally conductive fillers
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KBS-F0400
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Modified polyester polymers
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Dispersion of nano inorganic fillers with excellent stability
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KBS-F8600
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Acid polyester compounds
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High filler strength, excellent stability, colour stability in anhydride cured systems
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Anti-sinking Thixotropic Agent
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KBS-C410K
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Organic polyurea
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Low impact on transparency, viscosity, storage stability and curing activity, excellent anti-sinking and thixotropic effect.
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KBS-C6100
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Modified polyamide solutions
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With hydrophilic aerosilicone, improve the thixotropy of epoxy system, does not affect the viscosity of amine curing agent.
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KBS-C6200
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Modified polyamide solutions
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KBS-C3120X
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Polyamide wax pastes
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Environmentally friendly solvents have excellent anti-sinking and thixotropic effects on high specific gravity fillers, and their unique molecular structure is helpful for bond strength enhancement.
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Wetting and Levelling Agent
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KBS-L333K
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Polyether modified silicone
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Excellent wetting and levelling performance
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KBS-L331K
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Polyether modified silicone
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Excellent wetting and levelling performance, combined with foam inhibition.
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KBS-L411K
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Silicone polymers
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Wetting agent for oily substrates, strong reduction of surface tension, effective solution to the decline in adhesion caused by substrate oil.
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KBS-L3580A
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Polyacrylate solutions
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Good compatibility, suitable for improving the levelling of highly transparent systems.
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Defoamer
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KBS-X055K
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Polyacrylate
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Non-silicon defoamer, good compatibility, efficient defoaming performance
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KBS-X066K
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Fluorine-modified silicone solutions
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Fluorine-modified organosilicon defoamer, strong defoaming and foam inhibition
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KBS-X6800A
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Silicone defoamers
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Fast foam breaking speed, excellent foam inhibition and defoaming performance.
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Tackifier
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KBS-T0100
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Amino-containing organosilanes
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Excellent adhesion to metal and non-metal surfaces
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KBS-T0200
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Epoxy-containing organosilanes
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KBS-T0300A
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Polyester compounds
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Provide excellent adhesion to metal surfaces, and modified flexibility.
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Dispersants
- KBS-F5000A is an acid polyester compound dispersant. It is a general-purpose, cost-effective viscosity-reducing dispersant suitable for standard two-component epoxy formulations where reliable pigment and filler dispersion is required.
- KBS-F9100 is an acid polyester compound dispersant designed for highly filled two-component epoxy systems. It provides highly efficient viscosity reduction with high filler loading, helping formulators achieve stable, processable systems without sacrificing filler content.
- KBS-F9100A is an acid polyester compound dispersant offering strong viscosity reduction with high fillers. It is especially suitable for reducing the viscosity of thermally conductive fillers, making it ideal for thermally conductive epoxy systems, electronic potting, and gap-filling applications.
- KBS-F0400 is a modified polyester polymer dispersant. It provides dispersion of nano inorganic fillers with excellent stability, helping prevent agglomeration and ensuring uniform distribution of nano-scale fillers in two-component epoxy systems.
- KBS-F8600 is an acid polyester compound dispersant. It delivers high filler strength and excellent stability, with colour stability in anhydride-cured systems. It is particularly suitable for two-component epoxy formulations where both dispersion performance and colour consistency are critical.
Anti-sinking Thixotropic Agents
- KBS-C410K is an organic polyurea anti-sinking thixotropic agent. It has low impact on transparency, viscosity, storage stability, and curing activity, while providing excellent anti-sinking and thixotropic effects. It is suitable for two-component epoxy systems requiring reliable rheology control.
- KBS-C6100 is a modified polyamide solution anti-sinking thixotropic agent containing hydrophilic aerosilicone. It improves the thixotropy of epoxy systems and does not affect the viscosity of amine curing agents, making it particularly suitable for amine-cured two-component epoxy formulations.
- KBS-C6200 is a modified polyamide solution anti-sinking thixotropic agent designed for two-component epoxy systems. It provides thixotropic and anti-settling performance. Detailed technical characteristics are available upon request.
- KBS-C3120X is a polyamide wax paste anti-sinking thixotropic agent based on environmentally friendly solvents. It provides excellent anti-sinking and thixotropic effects on high specific gravity fillers. Due to its unique molecular structure, it also helps improve bond strength, making it particularly useful in adhesives and sealants with dense fillers.
Wetting and Levelling Agents
- KBS-L333K is a polyether-modified silicone wetting and levelling agent. It provides excellent wetting and levelling performance and is suitable for a broad range of two-component epoxy coatings and sealants.
- KBS-L331K is a polyether-modified silicone wetting and levelling agent. It delivers excellent wetting and levelling performance combined with foam inhibition, making it useful in systems where surface quality and foam control must be addressed together.
- KBS-L411K is a silicone polymer wetting agent designed for oily substrates. It strongly reduces surface tension and effectively solves the decline in adhesion caused by substrate oil contamination. It is recommended for applications where substrate cleanliness cannot be fully guaranteed.
- KBS-L3580A is a polyacrylate solution levelling agent with good compatibility. It is suitable for improving the levelling of highly transparent systems, especially clear epoxy coatings and transparent sealants where optical clarity is critical.
Defoamers
- KBS-X055K is a polyacrylate non-silicone defoamer. It offers good compatibility and efficient defoaming performance, making it suitable for two-component epoxy systems where silicone-free foam control is preferred.
- KBS-X066K is a fluorine-modified silicone solution defoamer. It is a fluorine-modified organosilicon defoamer with strong defoaming and foam inhibition performance, suitable for demanding two-component epoxy formulations.
- KBS-X6800A is a silicone defoamer. It provides fast foam breaking speed and excellent foam inhibition and defoaming performance, making it suitable for two-component epoxy systems requiring rapid and thorough foam elimination.
Tackifiers
- KBS-T0100 is an amino-containing organosilane tackifier. It provides excellent adhesion to metal and non-metal surfaces, making it suitable for two-component epoxy adhesives, sealants, and coatings.
- KBS-T0200 is an epoxy-containing organosilane tackifier designed for two-component epoxy systems. It is intended to improve adhesion to metal and non-metal substrates. Detailed technical characteristics are available upon request.
- KBS-T0300A is a polyester compound tackifier. It provides excellent adhesion to metal surfaces with modified flexibility, helping improve bonding performance in two-component epoxy systems where both adhesion and flexibility are required.
Application Areas
Two-component epoxy systems are widely used in applications requiring high mechanical strength, excellent chemical resistance, strong adhesion, and reliable curing performance. Typical application areas include:
- Coatings — Two-component epoxy coatings for industrial maintenance, marine, automotive, floor, metal protection, concrete protection, and pipeline coatings. These systems require good pigment and filler dispersion, anti-settling, levelling, and foam control.
- Adhesives and Sealants — Two-component epoxy adhesives and sealants for structural bonding, construction, automotive, electronics, and general industrial applications. Additives help improve filler dispersion, rheology control, substrate wetting, and adhesion to metal and non-metal surfaces.
- Electronic Potting and Encapsulation — Two-component epoxy systems for potting, encapsulation, and protection of electronic components, sensors, power modules, and LED devices. Thermally conductive fillers and high filler loadings require efficient viscosity reduction, anti-settling, and defoaming.
- Composites — Two-component epoxy matrices for composites, laminates, prepregs, and tooling where controlled viscosity, wetting, and foam-free processing are critical.
- Industrial Flooring — Self-levelling and mortar-type two-component epoxy floor coatings for industrial plants, warehouses, parking garages, and commercial spaces. Anti-settling and levelling agents are essential for uniform appearance and performance.
- Civil Engineering — Two-component epoxy systems for concrete repair, grouting, crack injection, anchoring, and structural strengthening. Rheology control, adhesion promotion, and filler stability are key requirements.
- Anhydride-Cured and Amine-Cured Systems — KBS-F8600 offers colour stability in anhydride-cured systems, while KBS-C6100 improves thixotropy without affecting the viscosity of amine curing agents, making them suitable for specific two-component epoxy curing mechanisms.
About Our Company
As an innovative, collaborative, and trusted partner in the chemical industry, China AAB Industry Technology Group's Member Company has specialized in the R&D, production, and sales of high-performance additives since 2006.
Our additives are specifically designed for demanding coating, adhesive, and sealant systems. The product portfolio includes Wetting & Dispersing Agents, Thixotropic & Anti-Settling Agents, Defoamers, Wetting & Leveling Agents, Adhesion Promoters & Coupling Agents, Wax Additives, and Hand Feel Agents. These products are compatible with polyurethane, epoxy, acrylic, UV-curable, solvent-free, and high-solids resin systems.
For technical data sheets, samples, or customized recommendations for your specific two-component epoxy application, please contact our technical team.
