Defoamers for Polycarboxylate (PCE) Superplasticizer Water Reducers
Air entrained during high-shear blending of polycarboxylate (PCE) water reducers and concrete admixtures lowers concrete compressive strength and density and speeds degradation. Controlling air content in the admixture is essential.
INVINO® supplies phosphorus-free polyether ester and alkylene oxide block copolymer defoamers built for compatibility with the PCE backbone. They prevent surfactant separation and macro-foam in concentrated admixtures and hold air content steady without disturbing the base formula. For other systems, see our Construction Industry Defoamers overview.
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Technical Benefits for Admixture Formulators
Stays uniformly dissolved in high-salt polycarboxylate and lignosulfonate systems — no phase separation or precipitation over a 12-month shelf life.
Keeps breaking bubbles through truck agitation, transit, and heavy pumping, holding consistent air content until the concrete sets.
Inert to tricalcium silicate and catalyst residues, so it adds no retarding or accelerating effect on cement hydration.
INVINO-8061 — Physical Properties
Recommended grade: INVINO-8061 phosphorus-free polyether for PCE superplasticizer synthesis.
| SPECIFICATION | VALUE / CRITERIA | METHOD |
|---|---|---|
| Appearance | Colorless to transparent liquid | VISUAL |
| Viscosity (25°C) | 500–750 mPa·s | BROOKFIELD |
| pH (1% solution) | 5.0–7.0 | GLASS ELECTRODE |
| Hydroxyl Value | 54–58 mg KOH/g | TITRATION |
| Technical Data Sheet | Full TDS available for laboratory review | REQUEST TDS |
Technical FAQ for PCE Admixture Formulators
Q: Is the defoamer phosphorus-free and compatible with PCE?
A: Yes. INVINO-8061 is a phosphorus-free polyether / alkylene oxide block copolymer designed to be compatible with the polycarboxylate (PCE) backbone, so it disperses uniformly without phase separation.
Q: Will it separate or float in concentrated PCE mother liquor?
A: No. It stays phase-stable in high-salt polycarboxylate and lignosulfonate systems, with no precipitation or floating over a 12-month shelf life.
Q: Does it affect concrete setting time?
A: No. It is inert to tricalcium silicate and catalyst residues, so it does not retard or accelerate cement hydration.
Q: Does the defoaming last through transport and pumping?
A: Yes. It keeps breaking bubbles through truck agitation, transit, and heavy pumping, holding consistent air content until the concrete sets.
Q: What are the key specs of INVINO-8061?
A: Colorless to transparent liquid; viscosity 500–750 mPa·s at 25°C; pH 5.0–7.0 (1% solution); hydroxyl value 54–58 mg KOH/g. Full TDS available on request.
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Standard Protocol for Admixture Sample Verification
System Parameter Submission
Share your PCE monomer type, solid content, and storage temperature range.
Free Lab Test (Hot Storage Stability + Mortar Air Test)
Our lab runs an accelerated hot-storage stability test and a mortar air-entrainment check to confirm a non-separating grade — free of charge.
Free Sample Dispatch
Free trial samples ship via air express for PCE synthesis tank and ready-mix batching trials. No MOQ at sample stage; buyer covers freight, refunded on the first bulk order.