Adhesive Mixing & Degassing Solution for Bubble-Free Results

High-performance industrial adhesives, sealants, and resin formulations require absolute homogeneity and zero void entrapment. Trapped micro-bubbles, uneven hardener ratio distribution, and filler settling lead to structural bonding failures, dielectric breakdown in electronics, and compromised sealing integrity.

Adhesives & Resins Handled

  • Epoxy Systems: 1K and 2K structural epoxies, conductive epoxies, high-temperature potting resins, and underfill compounds.

  • Silicones & RTV Sealants: High-viscosity silicone elastomers, Liquid Silicone Rubber (LSR), optical bonding clear silicones, and thermal gap fillers.

  • Polyurethanes (PU) & Acrylics: Structural PU adhesives, UV-curable resins, acrylic structural bonding agents, and anaerobics.

  • Functional & Filled Adhesives: Silver-filled conductive pastes, alumina/boron nitride thermal grease, and silica-filled encapsulants.

Industry Applications

  • Electronics & Semiconductor Packaging: Underfill, die-attach adhesives, PCB potting/encapsulation, and Thermal Interface Materials (TIM).

  • Automotive & EV Batteries: Structural battery pack bonding, thermal gap filler mixing, module encapsulation, and sensor potting.

  • Aerospace & Composites: Carbon-fiber composite resin infusion, structural honeycomb panel bonding, and extreme-temperature sealants.

  • Medical Device Assembly: Needle bonding adhesives, catheter assembly, bio-compatible epoxy sealing, and optical adhesive potting.

Common Material Processing Challenges

  • Air Bubble & Void Entrapment: Viscous resins easily trap air during mixing; sub-micron voids cause dielectric failure in electronics and weak structural joint strength.

  • Incomplete 2K Ratio & Hardener Dispersion: Poor mixing of Part A and Part B leads to localized soft spots, incomplete curing, and degraded mechanical properties.

  • High-Density Filler Settling & Agglomeration: Heavy thermal/electrical fillers (metal powders, silica) settle rapidly or form clusters, causing inconsistent conductivity.

  • Frictional Heat & Reduced Pot Life: High-shear mechanical blade stirring generates friction heat, triggering premature curing and drastically shortening working pot life.

How Planetary Vacuum Mixers Solve These Issues

Processing Challenge Planetary Vacuum Mixer Solution Technical Benefit
Trapped Air & Micro-Voids High-Vacuum Deaeration (-0.098 MPa) Removes sub-micron air bubbles entirely, preventing dielectric breakdown and bonding failure.
Incomplete 2K Mixing Non-Contact Dual Rotation (Revolution + Rotation) Achieves 100% homogeneous dispersion of Part A/B hardeners without dead zones or contamination from blades.
Filler Settling & Agglomeration High-G Centrifugal Shear Disperses heavy thermal/conductive fillers uniformly throughout viscous resins without phase separation.
Premature Gelation & Heat Blade-Free Low-Friction Hydrodynamics Minimizes shear friction heat, preserving pot life and keeping temperature-sensitive resins stable.

Recommended Equipment

Frequently Asked Questions (FAQ)

Q1: How do you prevent premature curing or gelation in pot-life-sensitive 2K epoxies?

Planetary mixing relies on blade-free hydrodynamic shear rather than mechanical friction blades, drastically reducing processing heat. Combined with short processing times (typically 2 to 4 minutes) and optional jacketed cooling adapters, your 2K formulations remain well within safe temperature limits, preserving their working pot life.

Q2: Can we mix and degas 2K adhesives directly inside our final cartridges or syringes?

Yes. We offer custom-engineered jigs and adapters for standard 3cc–55cc syringes, 300ml–900ml cartridges, and specialized dual-barrel packaging. Mixing directly in the final dispensing container eliminates material transfer loss, prevents secondary air re-entrapment, and reduces cleanup time to zero.

Q3: Is vacuum mixing effective for ultra-high-viscosity pastes exceeding 500,000 cPs?

Absolutely. The combination of intense centrifugal force and deep vacuum (-0.098 MPa) forces micro-bubbles out of extremely thick matrices—including heavy silicone gels, thermal gap fillers, and structural polyurethane pastes—that conventional blade mixers fail to process.