Coating Degasser
TEL:18925129293
Polyurethane Coating Defoaming Machin
Eliminate bubbles and blisters on PU topcoats · Achieve full, bright and bubble-free coating films
Simultaneous mixing & defoaming within pot life · Low-noise stable operation · Non-contact mixing without ratio deviation
Targeting the high reactivity and easy foaming characteristics of two-component PU topcoats, the SIENOX polyurethane coating defoaming solution completes mixing and vacuum defoaming within the valid pot life. It avoids surface drying while inner layer remains wet, as well as blisters and pinholes, delivering full and high-gloss coating finishes.
✓ CE certification ✓ ISO9001 Quality Management System ✓ RoHS compliance ✓ Custom voltage available (110V/220V)
Why Do We Need Polyurethane Coating Defoaming Machine
Woodware PU TopcoatPU topcoats for furniture and wood floors require high fullness and gloss. Sprayed air bubbles form blisters and pinholes on high-build films, directly affecting surface appearance and touch feeling. | Automotive & Plastic CoatingsAutomotive refinish paints and plastic PU coatings demand zero surface defects. Bubbles and craters will cause rework and increase production costs. | Marine PU TopcoatPU topcoats for ships and terminal facilities require superior outdoor weather resistance. Voids and bubbles in coatings will accelerate water penetration and coating aging. |
✨ Traditional Dilemma: PU coatings feature fast reaction speed. Slight delay in defoaming leads to thickening and curing. Ordinary vacuum chambers cannot finish pumping within the pot life. Simultaneous mixing and defoaming is required.
Why Choose SIENOX PU Coating Defoaming Solution
Operate Within Pot LifeSimultaneous mixing and defoaming under vacuum shortens processes and completes operation before the PU pot life expires for subsequent application. | Stable & Low NoiseLow equipment vibration prevents extra bubble generation and heat buildup, suitable for sensitive PU systems. | Unchanged Mixing RatioNon-contact mixing keeps the two-component ratio unchanged with no cross-contamination, ensuring stable coating film performance. |
✨ The MIX series is the ideal defoaming equipment for offset printing inks from color matching to bulk ink supply.
Equipment Supporting Description
Supporting Process Workflow Weigh resin and powder → Vacuum stirring, mixing and degassing → Discharge for compacting / casting → Curing / sintering. | ![]() |
Specifications & Parameters
Selection Guide
| PU Coating Application | Typical State | Recommended Defoaming Method | Recommended Equipment |
| Color Matching / Sample Preparation | Small amount of coating material | Vacuum Defoaming | ZK Series |
| Wood PU Topcoat | Low-Medium Viscosity | Vacuum Stirring and Defoaming | MIX60 |
| Automotive / Plastic PU Coating | Medium Viscosity | Vacuum Stirring and Defoaming | MIX80 / MIX1000plus |
| High-build Topcoat | Medium-High Viscosity | Vacuum stirring + Pressure Fine Defoaming | MIX1000plus / RX Series |
Our Partners
Trusted by leading industrial manufacturing clusters and advanced university laboratories worldwide
FAQ - Frequently Asked Questions
Answers to common questions about product performance and everyday process selection
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What is the working principle of a centrifugal defoaming machine?
Principle of centrifugal defoaming machine: The bubbles are released by the downward principle of gravity.
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How is the after-sales service?
The company has professional after-sales service personnel, 24-hour dedicated service, and one-on-one technical support to solve your worries.
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Why choose SIENOX?
There are many reasons for choosing SIENOX, and the following are some of the main reasons:
1. Professionalism: Our team consists of a group of professional individuals with rich experience and knowledge in their respective fields. We not only understand industry trends and best practices, but also provide practical and feasible solutions.
2. Service quality: We focus on customer needs and satisfaction, and are always committed to providing high-quality services. We not only respond quickly to customer needs, but also provide customized services according to their requirements.
3. Reliability: We adhere to the principles of integrity and professionalism, always adhering to commitments and agreements. Our work methods and deliverables comply with industry standards and best practices, enabling our clients to trust us.
4. Innovation: We continuously explore new methods and tools to provide better services and meet customer needs. We encourage innovation and experimentation, and are willing to accept challenges and change.
5. Cost effectiveness: We provide cost-effective services that not only help customers save costs, but also improve efficiency and productivity. We always prioritize the interests of our customers and provide them with the best solutions.
6. Teamwork: We believe in the power and value of teamwork, and our team members support, collaborate, and respect each other. We establish close cooperative relationships with customers, partners, and other stakeholders to achieve common goals.
The above are just some of the reasons for choosing us. We believe there are many other advantages and values that can be provided to customers. If you are looking for a professional, reliable, and high-quality service provider, we look forward to working with you.
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How does the stirring and defoaming machine work?
The SIENOX stirring and defoaming machine performs defoaming through centrifugal force at revolution and stirring through shear force formed by revolution and rotation,
Assisted by a vacuum pump to extract gas and achieve a vacuum state, removing nanoscale tiny bubbles. No contact with materials, no secondary pollution, and no secondary waste.
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What is the function of a defoaming machine?
A defoaming machine is a device used to remove bubbles from liquids. Its function is to assist in the liquid mixing, reaction, coating, printing, infusion and other process steps in the production process, avoiding the generation of bubbles and their impact on the final product. In many industrial and laboratory environments, removing bubbles is essential as they may have a negative impact on product quality, such as affecting surface tension and stability. Defoaming machines typically use various techniques such as vibration, ultrasound, centrifugation, etc. to achieve effective bubble removal. It has a wide range of applications, including but not limited to semiconductors, solar energy, optics, biotechnology, materials science, etc.
Technical Specification List
Full‑line standardized specifications for accurate process evaluation and equipment selection
| PU Coating Application | Typical State | Recommended Defoaming Method | Recommended Equipment |
| Color Matching / Sample Preparation | Small amount of coating material | Vacuum Defoaming | ZK Series |
| Wood PU Topcoat | Low-Medium Viscosity | Vacuum Stirring and Defoaming | MIX60 |
| Automotive / Plastic PU Coating | Medium Viscosity | Vacuum Stirring and Defoaming | MIX80 / MIX1000plus |
| High-build Topcoat | Medium-High Viscosity | Vacuum stirring + Pressure Fine Defoaming | MIX1000plus / RX Series |
Multi‑Industry Solutions
Covering stirring and debubbling applications of typical materials across six major industries
Wood CoatingPU topcoat for furniture and flooring |
Automotive CoatingPU coating for auto refinishing and whole vehicle painting |
Plastic CoatingCoating for plastic parts and 3C housings |
Marine CoatingPU topcoat for ships and port facilities |
Industrial TopcoatPU decorative coating for machinery and equipment |
Coating FactoryProduction, color matching and filling of PU paints |
Comprehensive Equipment Operation Demo Videos
Gain intuitive, clear, dynamic insight into synchronous defoaming with planetary centrifugal force and high negative pressure.
Measured Defoaming‑Process Performance
Measured Processing Results for Six Typical Materials
Paste Materials |
Adhesive with Powder |
Polymer Materials |
Pharmaceutical Gel |
Silver Paste Materials |
Battery Slurry |
Precautions for Use
| Notes | Operation Instructions |
| Mix Ratio & Material Temperature | Strictly control the two-component ratio and material temperature. Preheat prior to defoaming and application if needed. |
| Pot Life | PU has high reactivity. Carry out spraying as soon as possible after defoaming to avoid thickening overtime. |
| Vacuum Degree | Adjust vacuum degree according to formulations to prevent system abnormality caused by excessive pumping. |
| Slow Pressure Release | Release pressure slowly after defoaming to prevent re-foaming of coating. |
* Internal laboratory test data. Actual results vary with coating formulation and construction technology. Contact sales for real customer cases.
Customer Delivery & Application Cases
Rooted in manufacturing frontlines, empowering benchmark production lines and key national research institutions across diverse industries.















