Coating‑Film Material Stirring‑Defoaming Solution

Coating‑film material is a common surface‑treatment technique widely applied in architecture, electronics, automotive, optics and other industries. During scientific research and coating‑film application at ***Industrial University, bubble issues severely degraded coating‑film quality and experimental accuracy. After learning that SIENOX defoaming machines could resolve material‑defoaming problems online, the university contacted SIENOX. After requirement communication, SIENOX sales engineers provided mature coating‑film material defoaming solutions and invited the customer to submit samples for free trial‑testing.

Working Condition Requirements

• Material Types: Coating‑film materials (optical coating‑film, electronic coating‑film, architectural coating‑film, automotive coating‑film, functional coating‑film, anti‑fouling coating‑film, anti‑corrosion coating‑film, conductive coating‑film, thermal‑insulation coating‑film, etc.)

• Initial Status: Large quantities of bubbles, especially stubborn micro‑bubbles, are incorporated during material preparation. As fluid‑state coating‑film materials trap bubbles that hardly escape naturally, direct coating will result in bubble pinholes and uneven film thickness.

• Processing Target: Thoroughly remove stubborn micro‑bubbles from coating‑film materials to obtain uniform, flat films free of bubble pinholes, satisfying high‑quality coating requirements for university‑based scientific research and industrial mass production.

Comparison Before and After Improvement

Before Improvement — Pain Points of Traditional Processes:

• Difficult removal of stubborn micro‑bubbles: Micro‑bubbles trapped inside fluid coating‑film materials. Conventional static defoaming shows extremely low efficiency, with abundant bubbles remaining even after hours of standing.

• Bubble‑induced pinholes: After coating, trapped bubbles rupture and form pinholes, seriously impairing coating integrity and protective performance.

• Uneven coating‑film thickness: Bubbles cause uneven fluid distribution during coating, leading to thickness fluctuations and degrading optical and electrical performance.

• Poor surface quality: Bubbles produce pits and dimples on coating surfaces, ruining appearance and surface smoothness.

• Reduced adhesion: Bubbles create discontinuous contact between coating‑film and substrate, lowering adhesion and triggering peeling‑off risks.

• Poor experimental repeatability: Unstable defoaming results with large quality variations among batches in scientific‑research experiments.

Solution:

***Industrial University contacted SIENOX after discovering SIENOX defoaming machines online. Following detailed requirement communication, SIENOX sales engineers delivered mature coating‑film material defoaming solutions and invited the customer to provide samples for free trial tests.

The submitted fluid sample contained abundant bubbles, especially stubborn micro‑bubbles. SIENOX adopted the SIE‑MIX90 planetary vacuum stirring‑defoaming machine for testing. Rotation speed and duration parameters were optimized for the material’s properties. The customer was highly satisfied with the defoaming performance and promptly signed the contract.

Core Solution Highlights:

1. Dual defoaming by vacuum stirring: The SIE‑MIX90 planetary vacuum stirring‑defoaming machine performs dynamic stirring under vacuum to rapidly expel and thoroughly eliminate stubborn micro‑bubbles within fluid coating‑film materials.

2. Nano‑level defoaming: Nano‑scale defoaming capability. Efficient defoaming is completed within 2 minutes at 1600 rpm for thorough and fast bubble removal.

3. Customizable fixtures: Custom‑made fixtures support cans, beakers, glue cups and other containers of various sizes for both research‑lab and mass‑production scenarios.

4. Adjustable rotation speed: Flexible speed adjustment enables fast defoaming for coating‑film materials of different viscosities.

5. Automated operation: Manual intervention is minimized for easy operation and reliable experimental repeatability.

6. Customizable functions: Custom‑configurable functions to maximize compliance with customer‑specific application demands.

Sample Provider: ***Industrial University

Test Conditions

Stirring‑Defoaming Effect Comparison Chart

Mature Application Fields

• Optical coating‑film (optical‑lens coating, optical‑filter coating, anti‑reflection coating)

• Electronic coating‑film (ITO conductive‑film coating, flexible‑circuit coating‑film, semiconductor coating‑film)

• Architectural coating‑film (architectural‑glass coating‑film, exterior‑wall coating‑film, waterproof coating‑film)

• Automotive coating‑film (automotive‑paint coating‑film, windshield‑glass coating‑film, thermal‑insulation coating‑film)

• Functional coating‑film (anti‑fouling coating‑film, anti‑corrosion coating‑film, self‑cleaning coating‑film)

• Conductive coating‑film (conductive‑silver‑paste coating‑film, electromagnetic‑shielding coating‑film)

• Thermal‑insulation coating‑film (IR thermal‑insulation coating‑film, UV thermal‑insulation coating‑film)

• Research‑lab coating‑film (university‑based scientific‑research experiments, lab‑scale sample preparation)