Epoxy Adhesives | Two Part
Discover the power of two-part epoxy adhesives. Unlock superior bonds with exceptional strength, versatility, and customizable properties for aerospace, automotive, construction, and more.
Two-part epoxy adhesives are the workhorses of industrial bonding, offering unparalleled strength and versatility for a wide range of applications. Unlike their one-part counterparts, two-part epoxies involve a chemical reaction between a resin and a hardener, resulting in a robust, durable bond. This blog will explore the benefits, applications, and selection criteria for two-part epoxy adhesives, empowering you to make informed decisions for your bonding projects.
What are Two-Part Epoxies?
Two-part epoxies consist of two separate components: a resin and a hardener. When combined in the correct ratio, these components undergo a chemical reaction, curing into a rigid, high-strength polymer. This curing process can occur at room temperature or be accelerated with heat, depending on the specific formulation.
Key Benefits of Two-Part Epoxies:
- Exceptional Strength: Provides superior tensile, shear, and impact strength.
- Versatility: Bonds a wide range of substrates, including metals, plastics, ceramics, and composites.
- Customizable Properties: Formulations can be tailored for specific applications, offering varying cure times, viscosities, and temperature resistances.
- Gap Filling: Suitable for bonding irregular surfaces and filling gaps.
- Chemical Resistance: Offers excellent resistance to chemicals, solvents, and moisture.
Incure Epo-Weld™ Series Core Products Product Description Color (Part A/B) Viscosity (cps) (Part A/B) Hardness (Shore D) Pot Life Epo-Weld™ 6400 High adhesion strength, grease, chemical, and solvent resistance. Bonds ceramics, glass, plastics, and metals. General adhesive for convenience and speed at room temperature. Colorless / Light Yellow 12,000 – 17,000 / 12,000 – 17,000 D84 3 mins Epo-Weld™ 6401 Toughened epoxy with high peel and shear strength. High crack and fatigue resistance for vibration applications. Bonds ceramics, glass, plastics, and metals. Milky White / Yellow 13,000 – 19,000 / 12,000 – 18,000 D82 30 mins Epo-Weld™ 6403 Bonds steel plate, tetron fiber, and aluminum frames. High adhesion, grease, chemical, and solvent resistance. Anti-static property for PC and ABS bonding. Colorless / Light Brown 9,000 – 19,000 / 10,000 – 32,000 D80 30 mins Epo-Weld™ 6404 Low viscosity, structural bonding adhesive. Good handling, chemical resistance, and surface gloss. For metal bonding and joining electronic devices, ceramics, and plastics. Clear / Brown 10,000 – 20,000 / 10,000 – 30,000 D78 15 mins Epo-Weld™ 6405 Low viscosity, structural bonding adhesive. Good handling, chemical resistance, and perfect surface gloss. For metal bonding and joining electronic devices, ceramics, and plastics. Clear / Brown 10,000 – 20,000 / 25,000 – 45,000 D78 30 mins Epo-Weld™ 6407 High adhesion strength, grease, chemical, and solvent resistance. For steel plate, tetron fiber, and aluminum frames bonding. Anti-static property. Grey / White 30,000 – 70,000 / 17,000 – 47,000 D80 5 mins Epo-Weld™ 6408 Toughened epoxy with high peel and shear strength. High crack and fatigue resistance for vibration applications. Bonds plastics, metals, glass, and ceramics. Black / Yellow 29,000 – 34,000 / 14,000 – 24,000 D82 30 mins Epo-Weld™ 6409 Fast cure at low temperature and easy to operate. Well suited for structural substrates. Black / Yellow 25,000 – 35,000 / 21,000 – 41,000 D85 30 mins Epo-Weld™ 6411 Low viscosity, good transparency, perfect surface gloss, and high adhesion strength. Fast cure at low temperature for metals, glasses, ceramics, and plastics bonding. Colorless / Light Yellow 5,000 – 13,000 / 5,000 – 9,000 D83 30 mins Epo-Weld™ 6414 Fast cure at low temperature. Insulation, chemical resistance, and excellent electrical properties. For decorative arts, crafts, glass bonding, and repair. White / Yellow 7,000 – 17,000 / 13,000 – 18,000 D80 15 mins Epo-Weld™ 6415 Good handling, thermal shock resistance, and low exotherm for encapsulation of components and modules. For electronic devices bonding, sealing, casting, and potting. Black / Yellow 3,000 – 7,000 / 4,000 – 8,000 D70 30 mins Epo-Weld™ 6416 Good handling, low temperature cure, high toughness, insulation, and thermal shock resistance. For electronic devices bonding, sealing, casting, potting, and encapsulation. Light Yellow / Black 11,000 – 11,100 / 37,100 – 38,000 D78 – Epo-Weld™ 6417 Low viscosity, good handling, chemical resistance, and perfect surface gloss. Tough, strong structural bonds with excellent shear, peel, and impact strength. For metal, composites, and plastics bonding. High crack and fatigue resistance for vibration applications. Black / Yellow 17,000 – 29,000 / 16,000 – 36,000 D75 20 mins Epo-Weld™ 6420 High adhesion strength, grease, chemical, and solvent resistance. Good electrical insulation. Bonds glass, ceramics, plastics, and metals. Grey to White / Grey to White 12,000 – 24,000 / 17,000 – 27,000 D87 10 mins Epo-Weld™ 6423 Toughened epoxy with excellent shear, peel, and impact strength. Good adhesion, thermal shock, chemical, and solvent resistance. Cures at room temperature and exhibits good electrical insulation. For metal, plastics, and ceramics bonding. Milky White / Amber 21,000 – 40,000 / 13,000 – 20,000 D80 50 mins Epo-Weld™ 6424 High crack and fatigue resistance for vibration applications. Perfect surface gloss. General adhesive for plastics, metals, and construction materials at room temperature. White / Yellow 30,000 – 60,000 / 20,000 – 36,000 D84 20 mins Epo-Weld™ 6427 For PC to silicon rubber bonding. Tough and flexible. Used for screen printing. Light Yellow / Light Yellow 750 – 1,500 / <500 D79 30 mins Epo-Weld™ 6428 Durable and tough with high peel and shear strength. High crack and fatigue resistance for vibration applications. Bonds plastics, metals, glass, and ceramics. Milky White / Yellow 22,000 – 34,000 / 47,000 – 72,000 D76 20-30 mins Epo-Weld™ 6429 High viscosity, high Tg 2-part epoxy for electronic device bonding. Elevated temperature post-cure for maximum high-temperature stability. Light Grey / Brown 186,000 – 435,000 / 58,800 – 137,500 D90 30 mins Epo-Weld™ 6430 Good handling, perfect surface gloss, and extreme flexibility. For metal and device bonding (wood, ceramics, glass, rubber, plastics). High toughness, flexibility, and thermal shock resistance. Low exotherm and embedment stress. For electronic devices, stainless steel, and glass fiber sealing. Beige / Grey 150,000 – 240,000 / 300,000 – 500,000 D75 30 mins Epo-Weld™ 6431 High performance epoxy with low stress and shrinkage. High elasticity and good handling. General adhesive for convenience and speed. Thermal shock resistance. Black / Amber 300 – 500 / 600 – 1,000 A48 4-6 hrs Epo-Weld™ 6433 High toughness, durability, and outstanding flexibility. For dissimilar substrates with thermal stress. Suitable for low-stress potting. Colorless / Light Yellow 7,300 / 13,500 D54 3-5 mins Epo-Weld™ 6434 Epoxy for electronic devices with high adhesion strength. Excellent fluidity, surface gloss, and adhesion. Fast curing at low temperature. White / Dark Grey 40,000 – 60,000 / 58,000 – 90,000 D70 30 mins Epo-Weld™ 6446 High adhesion strength, grease, chemical, and solvent resistance. Bonds plastics, ceramics, glass, and metals. General adhesive for convenience and speed at room temperature. Colorless / Light Yellow 16,000 – 24,000 / 12,000 – 17,000 D85 3 mins Package Size: 50ml cartridge
Applications of Two-Part Epoxies:
Two-part epoxies are employed across numerous industries, including:
- Aerospace: Bonding structural components and composite materials.
- Automotive: Bonding body panels, trim, and structural elements.
- Construction: Anchoring bolts, bonding concrete, and repairing structures.
- Electronics: Encapsulating and bonding electronic components.
- Marine: Repairing and bonding boat hulls and components.
- Manufacturing: General bonding and assembly of various products.
Choosing the Right Two-Part Epoxy:
Selecting the appropriate two-part epoxy is crucial for achieving optimal results. Consider the following factors:
- Substrate Materials: Ensure the epoxy is compatible with the materials you intend to bond.
- Cure Time: Choose an epoxy with a cure time that aligns with your production schedule.
- Viscosity: Select a viscosity that allows for proper application and gap filling.
- Bond Strength: Determine the required bond strength for your application.
- Temperature Resistance: Consider the operating temperature of the bonded assembly.
- Chemical Resistance: Select an epoxy that can withstand the expected chemical exposure.
- Mix Ratio: Follow the manufacturer’s recommended mix ratio for optimal performance.
Tips for Using Two-Part Epoxies:
- Surface Preparation: Thoroughly clean and prepare surfaces for optimal adhesion.
- Accurate Mixing: Measure and mix the resin and hardener according to the manufacturer’s instructions.
- Application: Apply the epoxy evenly and ensure proper coverage.
- Clamping: Clamp or hold the bonded parts together during the curing process.
- Safety: Wear appropriate personal protective equipment (PPE) and work in a well-ventilated area.
Conclusion:
Two-part epoxy adhesives provide exceptional bonding performance for a wide range of applications. By understanding their properties and selection criteria, you can choose the right epoxy to achieve strong, durable, and reliable bonds.