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  • Polyurethane Rheology Additive HEUR-551A
  • Polyurethane Rheology Additive HEUR-551A Scope Of application.

Polyurethane Rheology Additive HEUR-551A

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Product Features

1.Medium and low shear thickener;

2.Excellent thickening effect, fluidity and leveling property;

3.Free of organotin, APEO and other toxic substances;

4.Good dispersibility, which assists in the wetting and dispersion of pigments in the formulation;

5.Non-ionic nature, with performance unaffected by the pH value of the system;

6.No adverse effect on the gloss of formulated products.

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Product Introduction

HEUR-551A is a liquid water-based thickener composed of polyurethane with a comb-like structure, featuring medium and low shear performance. It delivers outstanding performance in systems with a relatively high solvent content and is easy to apply. This product outperforms traditional cellulose-based thickeners (e.g., HEC hydroxyethyl cellulose, MC methyl cellulose, etc.) and acrylic thickeners in terms of leveling property, film gloss and water resistance.

Product Technical Parameters

Item Specification
Appearance Colorless or pale yellow transparent liquid
Solid content 50%±1%, 40%±1%
Colloid charge Non-ionic
Viscosity 10000-15000 mPa·s (25℃)
Specific gravity 1.02-1.06 g/cm³

*The above parameters represent typical results only and shall not be regarded as specifications. Refer to the actual COA for details.

Application Scope

Water-based coatings, water-based adhesives, water-based inks, textile coatings, leather finishing and other fields

Dosage and Application Method

1.Dosage: 0.2-2.0% relative to the total formulation. Conduct tests to determine the optimal dosage according to the system components and required fluidity before addition. It can also be diluted with water-based solvents or water for better dispersibility.

2.It can be added either before or after grinding. It is recommended to add a portion in the early stage and the rest in the later stage.

3.Good dispersibility – no pre-dilution is required before use; if dilution is needed, water-based solvents can be used.

Notes

1.Associative thickening is affected by temperature: viscosity is higher at low temperatures and lower at high temperatures. Temperature conditions should be taken into account when designing the formulation.

2.Re-test shall be conducted when the batch of thickened raw materials is changed to confirm the dosage of the thickener.

3.This product may crystallize at low temperatures, and crystallization does not affect product performance. If crystallization occurs, heat the product to melt the crystals before use.

Storage and Shelf Life

1.Store in the original sealed container;

2.Recommended storage temperature: 6-28℃;

3.Must be used up within 12 months from the date of production;

4.Avoid direct sunlight and contamination by other substances.

Packaging

Available in 50kg, 125kg and IBC ton drum packaging; customized packaging can be provided according to customer requirements.

The above data only represents our quality evaluation results obtained from laboratory tests, and does not constitute a warranty for the product’s specific properties and compliance with specific applications. Conduct specific tests as needed before use. Thank you for your selection and support!
Polyurethane Rheology Additive HEUR-551A Scope Of application.

FAQ

  • Is customization available upon request?

    Yes, customized service is available.