SIENOX Paste Material Solutions

Working Condition Requirements: Fully and evenly mix each component inside paste materials (solder paste, ceramic slurry, cosmetic pastes, toothpaste, etc.) and remove bubbles encapsulated in pastes. Pastes feature high viscosity and strong thixotropy, making bubbles hard to escape naturally. The processed paste shall be uniform and fine without residual bubbles. No flow break‑off or voids shall occur during printing / coating / filling, and no defects shall appear on surfaces after curing / drying.

Comparison Before and After Improvement

Before Improvement: A well‑known chemical enterprise originally adopted traditional mechanical stirring plus static defoaming process with the following problems:

Traditional stirring paddles deliver low stirring efficiency for pastes. High‑viscosity pastes are hard to turnover, leading to uneven mixing of each component.

Bubbles trapped inside pastes hardly escape naturally. Static defoaming takes 4‑12 hours or even longer, greatly slowing down production rhythm.

Stirring paddles are difficult to clean. Large amounts of solvent are required for flushing when switching formulas, resulting in waste and cross‑contamination.

Stubborn micro‑bubbles inside pastes cannot be removed effectively. Defects such as voids, flow break‑off and uneven surfaces frequently occur during printing / coating.

Bulky equipment occupies large floor space, and operation relies heavily on operator experience.

Solutions: According to the actual requirements of this enterprise, SIENOX provides planetary vacuum stirring‑defoaming machine and supporting solutions:

Planetary dual‑track stirring: Combined revolution and rotation realize three‑dimensional mixing of pastes under centrifugal force field. Uniform dispersion can be achieved without stirring paddles, and high‑viscosity pastes can be fully turned over and mixed.

Integrated vacuum defoaming: The vacuum system starts synchronously during stirring. Bubbles inside pastes expand and rupture under negative pressure. Mixing and defoaming are completed in one process within only 4‑15 minutes, replacing traditional 4‑12‑hour static defoaming.

Non‑contact design: No stirring paddle required. Only clean the outer wall of containers or replace containers when switching formulas, avoiding cross‑contamination and reducing solvent consumption.

PLC multi‑segment program control: Multiple groups of stirring parameters (speed, time, vacuum degree) can be stored. One‑click call of exclusive process programs for different paste formulas lowers reliance on operator experience.

Advantages of Stirring‑Defoaming Machine

Paddle‑free design: Avoid cross‑contamination, easy cleaning for formula switching, and save solvent consumption.

Adjustable rotating speed: Wide speed range from 0‑2000rpm, compatible with various paste materials including soft pastes and high‑viscosity thixotropic pastes.

High vacuum defoaming efficiency: Nanoscale defoaming to effectively remove stubborn micro‑bubbles inside pastes and improve paste stability.

Full‑range processing capacity: From lab‑scale 300mL to mass‑production 1000mL×2 dual‑cup parallel processing, meeting full‑process demands from formula R&D to mass production.

Customizable functions: Optional temperature control module, light‑proof function, MES system docking and more to satisfy diverse paste process requirements.

Complete after‑sales service: Professional technicians provide on‑site installation & commissioning and process parameter optimization guidance for worry‑free operation.

Sample Provider: *** University of Technology

Test Conditions

Effect Comparison Before and After Stirring

Mature Application Fields

Solder Paste (SMT mounting / electronic assembly)

Ceramic Slurry (electronic ceramics / structural ceramics / functional ceramics)

Cosmetic Pastes (face cream / foundation / concealer paste)

Toothpaste (abrasive type / gel type)

Dental Materials (impression materials / restorative materials)

Food Pastes (chocolate sauce / peanut butter / fillings)

Sealant / Putty (construction / automotive)

Thermal Conductive Paste (electronic heat dissipation)

Lapping Compound / Polishing Paste (precision machining)

3D Printing Materials (ceramic slurry / metal slurry)

***SIENOX has more than 1800 material stirring‑defoaming cases, free sample testing and trial machine test available