Rheology Modifiers
HASE, HEUR, and cellulosic thickeners engineered for precise viscosity control, anti-sag performance, and levelling in water-based paints, coatings, and adhesives.
Product Overview
Rheology modifiers are essential for controlling the flow behaviour of liquid formulations — from the in-can viscosity that ensures stability during storage, to the application viscosity that determines brushability, rollability, and sag resistance, to the final levelling that controls surface appearance.
JCT offers three thickener chemistries (HASE, HEUR, and cellulosic) to give formulators the flexibility to dial in the precise viscosity profile required for each application and application method.
Product Grades
| Grade | Chemistry | Supplied Form | KU Viscosity Build | Rheology Profile | Primary Application |
|---|---|---|---|---|---|
| JCT-RT100 Best Seller | HASE | Liquid (30% active) | High | Shear-thinning | Exterior wall paint, elastomeric coatings |
| JCT-RT110 | HASE | Liquid (25% active) | Medium | Shear-thinning | Interior emulsion paint, D2 / D3 class |
| JCT-RT200 | HEUR Associative | Liquid (20% active) | Medium–High | Pseudo-plastic | Semi-gloss & gloss coatings, levelling-critical |
| JCT-RT210 | HEUR Associative | Liquid (25% active) | Low–Medium | Newtonian | Penetrating primers, thin-film coatings |
| JCT-RT300 | Hydroxyethyl Cellulose | Powder | High | Structured | Cement-based systems, tile adhesives |
| JCT-RT310 | Modified HEC | Powder | Very High | Structured | Textured wall coatings, high-build systems |
Choosing the Right Thickener
HASE Thickeners
Hydrophobically modified alkali-swellable emulsions. Activated by pH adjustment. Excellent anti-sag and spatter resistance. Best choice for exterior and high-build systems.
Recommended: JCT-RT100, JCT-RT110
HEUR Associative
Hydrophobically modified ethylene oxide urethane rheology modifiers. Work via micellar network. Give excellent levelling and flow. Best choice for gloss and semi-gloss topcoats.
Recommended: JCT-RT200, JCT-RT210
Cellulosic (HEC)
Hydroxyethyl cellulose-based thickeners. Robust in high-pH and ionic environments. Compatible with cement and lime. Best choice for construction and tile adhesive systems.
Recommended: JCT-RT300, JCT-RT310
Key Performance Properties
7.5–10
HASE activation pH range
20–35%
Active content (liquid grades)
KU 50–140
Achievable viscosity range
<0.1%
Typical addition rate (HEUR)
0.2–0.5%
Typical addition rate (HASE)
0.1–0.3%
Typical addition rate (HEC)
Recommended Applications
Find Your Ideal Viscosity Profile
Free samples and technical support from formulation to production scale-up.