Project Description
Adhesive Antifoams for Industrial Applications | Foam Control Agent
Foam during water-based adhesive compounding and high-speed coating lowers processing density, makes film thickness uneven, and weakens the final bond strength. High-shear blending plus strong anionic surfactants pull in air pockets. The challenge is removing that air without causing separation.
INVINO® makes non-silicone polyethers and modified silicone defoamers that knock down surface foam and release micro-bubbles in high-solids emulsions. They stay compatible with the matrix, preventing fish eyes, pinholes, and craters across pressure-sensitive adhesives and resin emulsions.
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Applications of Adhesive Antifoams
For packaging adhesives, label production, and paper coating. High compatibility cuts micro-bubbles without weakening the bond.
For shipping labels, protective tapes, and technical bonding agents. Speeds degassing under roller pressure and avoids fish eyes and pinholes.
Stable through base polymer synthesis, architectural paints, and protective compounds. Stays uniform in tank storage without phase separation.
Adhesive Antifoams Provided by INVINO®
| PRODUCT CODE | INGREDIENT TYPE | ACTIVE SOLID (%) | Application / Best For | TECHNICAL FILES |
|---|---|---|---|---|
| INVINO-G10 | Non-Silicone Block Polyether | 100.0 | Water-based pressure-sensitive adhesives, high-speed label lines, and zero-silicone systems. | DOWNLOAD TDS |
| INVINO-G202 | Silicone Emulsion (Modified) | 30.0±2.0 | General water-based packaging glues, resin emulsions, architectural adhesives, and wood glues. | DOWNLOAD TDS |
Choose INVINO® for Reliable Adhesive Antifoams
Q: Will the defoamer weaken the bonding strength of the adhesive?
A: No. Overdosing raw silicone oil forms floating layers that disrupt polymer wetting and lower peel strength. Our defoamers are shear-emulsified to disperse evenly, protecting both cohesive and adhesive strength.
Q: Can it prevent "Fish Eyes" or pinholes during coating?
A: Yes. Fish eyes come from local surface-tension mismatch (oil clots). INVINO-G10 uses high-compatibility polyether backbones that collapse foam while keeping a smooth, continuous coating.
Q: Is it safe for food packaging adhesive applications?
A: Our grades use chemically inert block copolymers and non-toxic, low-migration components, which suits the secondary sealing of dry-food packaging. Please confirm the specific grade against your local food-contact regulation.
Q: Which types of adhesives is it suitable for?
A: Water-based systems including polyacrylic ester pressure-sensitive emulsions, ethylene-vinyl acetate (EVA) dispersions, polyvinyl alcohol (PVA), and styrene-butadiene (SBR) resin compounds.
Q: Can it withstand high-speed mixing or coating speeds?
A: Yes. High-speed roller and slot-die coating apply sharp shear that breaks weak antifoams. INVINO-G202 is a modified silicone emulsion that stays intact and keeps working under continuous shear.
Q: Will adding defoamer change the viscosity of my glue?
A: No. At normal dosing (about 0.1%–0.3% by weight), these non-ionic polymers neither thicken nor thin the base emulsion, so your target flow rates stay the same.
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Standard Protocol for Adhesive Sample Verification
System Parameter Submission
Share your base resin emulsion (acrylic, EVA, SBR, PVA), compounding viscosity, coating shear speed, and any food-contact regulatory target.
Free Lab Test (Loop Coating + Peel Strength Retention)
Our adhesive lab runs a loop coating simulation and a post-cure peel-strength retention test to isolate a crater-free grade — free of charge.
Free Sample Dispatch
Free trial samples ship via air express for coating-line trials. No MOQ at sample stage; buyer covers freight, refunded on the first bulk order.
