AB glue defoamer: small dose, big effect, unlocking the "bubble-free secret" of adhesive application
In industrial manufacturing, home repair or creative handicrafts, AB glue (such as epoxy resin glue, acrylic glue) has
become a "universal adhesive" due to its high strength, durability and versatility. However, the bubbles generated
during mixing and stirring are like "invisible assassins", quietly weakening the performance of the colloid and even
causing the product to be scrapped. At this time, AB glue defoamer becomes the key to breaking the game - it
resolves the bubble crisis with a tiny dose, bringing significant advantages to the application of adhesives. This
article will take you to reveal the "superpowers" of AB glue defoamer and see how it has become a
"behind-the-scenes hero" in modern industry and life.
1. The core advantages of AB glue defoamer: four ounces to move a thousand pounds
I. Improve bonding strength and eliminate the hidden dangers of "false adhesion"
The destructive power of bubbles: bubbles in the colloid will form "voids", resulting in a reduction in bonding area,
stress concentration, and reduced tensile strength and durability.
The role of defoamer: by quickly eliminating bubbles, ensuring that the colloid completely fills the gap, the bonding surface
is uniform and dense, and the strength can be increased by more than 30% (data based on experimental comparison).
Application scenarios: automotive parts bonding, building structure sealing, electronic component packaging and other fields
with extremely high strength requirements.
II. Optimize surface quality and create a "traceless" process
The "appearance killer" of bubbles: after the colloid is cured, bubbles will form pits, pits or poor light transmittance,
affecting the appearance of the product.
The role of defoamer: eliminate surface bubbles and make the colloid smooth and flat, especially suitable for transparent
colloids (such as epoxy resin crafts, LED packaging glue).
Application scenarios: jewelry inlay, model making, art installations, high-end furniture repair, etc.
III. Shorten the production cycle and improve efficiency and cost-effectiveness
The "time cost" of bubbles: traditional methods (such as static degassing and vacuum treatment) are time-consuming and may
cause rework due to residual bubbles.
The role of defoamer: quickly defoam and inhibit the generation of new bubbles, reduce the defoaming time by more than 50%,
and reduce energy consumption and labor costs.
Application scenarios: large-scale production lines (such as circuit board packaging, automobile assembly), emergency maintenance
scenarios.
IV. Enhance process stability and reduce the risk of "rollover"
The "uncontrollability" of bubbles: environmental humidity, stirring speed, colloid viscosity and other factors will affect bubble
generation, resulting in product quality fluctuations.
The role of defoamer: through standardized addition, eliminate environmental variable interference and ensure consistent
colloid performance for each batch.
Application scenarios: medical devices, aerospace and other fields with strict requirements on process stability.
2. The "invisible skills" of AB glue defoamer: more than defoaming
I. Strong compatibility, adaptable to a variety of AB glue systems
Technological breakthrough:
Modern defoamers are designed with special molecular structures, which are compatible with a variety of resin systems such as
epoxy resins, polyurethanes, and acrylates, and do not react with curing agents.
User value: No need to replace defoamers for different colloids, simplifying procurement and management processes.
II. Low addition amount, high cost performance
Economical dosage: The amount of defoamer added is usually 0.1%-1% of the total amount of AB glue, which can significantly
improve the bubble problem.
Cost comparison:
Taking 1 kg of epoxy resin glue as an example, the cost of adding 10 grams of defoamer is less than 1 yuan, but it can avoid
material waste and rework costs caused by bubbles.
3. Environmentally friendly and safe, in line with the trend of green production
Formula upgrade:
The new generation of defoamers adopts solvent-free and low VOC (volatile organic compound) formula, which complies with
environmental protection standards such as RoHS and REACH.
Application advantages: It can also be used with confidence in fields with high safety requirements such as food packaging,
children's toys, and medical devices.
3. Application cases of AB glue defoamer: from laboratory to production line
Case 1: "Zero bubble" revolution in electronic packaging
Pain point: When a circuit board packaging factory uses traditional AB glue, bubbles cause poor light transmittance of the
packaging layer, and the yield rate is only 70%.
Solution: After adding 0.3% of the special defoamer, the bubbles are completely eliminated, the yield rate is increased to 98%,
and the annual rework cost is saved by more than 500,000 yuan.
Case 2: The "appearance counterattack" of building sealants
Pain point: In a curtain wall project, bubbles on the surface of the sealant caused appearance defects, and the customer
complaint rate was as high as 15%.
Solution: After using the defoamer, the surface of the colloid is as smooth as a mirror, customer satisfaction is increased to 99%,
and the brand reputation is significantly improved.
Case 3: The "artifact" upgrade of handmade masters
Pain point: When handmade enthusiasts use epoxy resin to make puffer ornaments, bubbles cause the scrap rate of the works
to exceed 40%.
Solution: After adding the defoamer, the bubbles disappear, the finished product rate of the works is 100%, and the exposure
on social media increases by 3 times.
4. How to scientifically select AB glue defoamers?
1. Three-step screening method
Look at the ingredients: give priority to silicone, polyether or mineral oil defoamers, and avoid products containing wax or
solid particles (which may affect transparency).
Compatibility test: Test the miscibility of the defoamer and AB glue with a small sample to observe whether there is
stratification, discoloration or curing effect.
Performance test: By simulating actual working conditions (such as stirring speed and temperature), verify the defoaming
speed, anti-foaming time and the impact on the performance of the colloid.
2. Pitfall avoidance guide
Myth 1: The more defoamers, the better
Risk: Excessive addition may cause colloid shrinkage, delayed curing or decreased transparency.
Suggestion: Start testing from the lowest addition amount (0.1%) and gradually optimize.
Myth 2: Ignore the compatibility of defoamers and curing agents
Risk: Some defoamers may react with curing agents, resulting in non-curing of the colloid or decreased performance.
Suggestion: Confirm with the supplier whether the defoamer is suitable for your AB glue system.
4. The future of AB glue defoamers: smart and sustainable
With the advancement of Industry 4.0 and green manufacturing, AB glue defoamers are also evolving:
Smart formula: "targeted defoaming" is achieved through nanotechnology, which acts precisely on the surface of bubbles
and reduces the dosage.
Bio-based raw materials: Use renewable resources (such as vegetable oil) to replace traditional petrochemical raw materials to
reduce carbon footprint.
Digital services: Suppliers provide online selection tools to recommend the best defoamer based on the colloid type and process
parameters entered by the user.
Conclusion
AB glue defoamer, this seemingly inconspicuous additive, is actually the "efficiency engine" and "quality gatekeeper" in modern
industry and life. It resolves the bubble problem with a tiny dose and protects the bonding strength, surface quality, production
efficiency and process stability. Whether it is a factory production line, a construction site, or a handcraft enthusiast's studio,
choosing a suitable defoamer can make your AB glue application "more powerful". Next time you use AB glue, try this
"invisible hero" and feel the surprise brought by "no bubbles"!
