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High-efficiency associative thickener based on hydrophobically modified polyacrylate chemistry.
Delivers excellent rheology control and viscosity build in low-to-medium pH aqueous systems.
Provides outstanding shear-thinning behavior and sag resistance in vertical applications.
Compatible with common surfactants, co-solvents, and preservatives used in industrial formulations.
Enables low-foaming performance ideal for high-shear processing and spray-application systems.
Architectural coatings including interior and exterior latex paints.
Industrial maintenance coatings and protective finishes.
Water-based adhesives and construction sealants.
Agrochemical suspension concentrates (SC) and herbicidal formulations.
Home care and institutional cleaning products requiring stable viscosity.
| Chemical Type | Hydrophobically Modified Polyacrylate (HMPA) |
| Product Form | Aqueous dispersion |
| Appearance | Opaque white to off-white liquid |
| pH (10% aqueous solution) | 3.0 – 4.5 |
| Active Content (wt%) | 25 – 27% |
| Viscosity (Brookfield, spindle #3, 20 rpm, 25°C) | 1,000 – 3,000 mPa·s |
| Free Monomer (Acrylic Acid) | < 0.1% w/w |
| Storage Stability | 12 months at 5–30°C in sealed container |
Q1: What type of rheology does Sipomer HPM 100 provide in aqueous systems?
A: Sipomer HPM 100 is an associative hydrophobically modified ethoxylated urethane (HEUR) thickener that delivers shear-thinning rheology, providing good flow and leveling during application while maintaining sag resistance and viscosity stability at rest.
Q2: Is Sipomer HPM 100 compatible with common surfactants and electrolytes found in industrial cleaning or paint formulations?
A: Yes — it exhibits good compatibility with nonionic and anionic surfactants, and demonstrates reasonable tolerance to moderate levels of electrolytes, though performance may vary depending on overall formulation composition and pH.
Q3: How should Sipomer HPM 100 be incorporated into a formulation for optimal thickening performance?
A: It is typically added late in the manufacturing process, after primary emulsification and pH adjustment, under moderate agitation. Pre-dilution with water or a compatible solvent is recommended to ensure uniform dispersion and avoid localized overdosing.
Q4: Does Sipomer HPM 100 require neutralization or pH adjustment to activate its thickening effect?
A: No — unlike alkali-swellable thickeners (ASE), Sipomer HPM 100 functions independently of pH and does not require neutralization; it develops viscosity through hydrophobic association in water, making it suitable for both neutral and mildly acidic to alkaline systems.
Q5: What are typical dosage ranges for Sipomer HPM 100 in water-based coatings and cleaners?
A: Dosage depends on the target viscosity, formulation matrix, and desired rheological profile, but it is generally used at low concentrations — typically ranging from 0.1% to 2.0% by weight of the final formulation.
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