Viscosity Build
Helps coating formulators reach the target NDJ viscosity range while maintaining usable application behavior.
Hydroxyethyl Cellulose
HEC for Paints, Coatings and NDJ Viscosity Grade Selection
HEC is selected mainly by coating formulation needs, NDJ viscosity grade, hydration behavior, rheology, anti-sag balance, leveling and storage stability. Viscosity is a screening parameter; the final grade should be confirmed by the complete paint system and matched test conditions.
CAS 9004-62-0Buyer confirmation point
Coatings firstBuyer confirmation point
NDJ test basisBuyer confirmation point
Specification Snapshot
Confirm product identity before quotation
Confirm identity, grade logic and test conditions before quotation so the technical discussion starts from the correct product series.
| CAS | 9004-62-0 |
|---|---|
| Identity | Hydroxyethyl Cellulose |
| Appearance | White or off-white powder |
| Application direction | Interior latex paint, exterior wall coating, texture coating, water-based coating systems and pigment/filler suspension |
| Viscosity system | NDJ rotational viscosity should be stated with solution concentration, temperature, rotor and speed |
| Packaging | 25kg/bag; pallet, container loading and moisture-control requirements should be confirmed before quotation |
| Key variables | NDJ viscosity grade, hydration time, pH condition, thickening efficiency, anti-sag/leveling balance, pigment suspension and storage stability |
What to confirm
- Which grade range fits the buyer’s application?
- Which specification details affect quotation?
- Which document and packaging requirements must be confirmed?
- Which product-specific technical limits should be reviewed?
Product Role
Key Functions for HEC formulation contribution
Use the application target, formulation system and test method to discuss the final grade, not product name alone.
Rheology Control
Supports brushability, roller application, leveling, anti-sag balance and coating film uniformity.
Pigment Suspension
Helps reduce settling and supports storage consistency when the full coating formulation is compatible.
Hydration Behavior
Grade discussion should include powder dispersion, lump control, pH condition, mixing sequence and hydration time.
Selection Matrix
Make grade selection visible before inquiry
Professional buyers should see the matching logic before asking only for price.
| HEC grade direction | NDJ viscosity level | Typical coating use | Main confirmation focus |
|---|---|---|---|
| Low viscosity grade | Low NDJ range | High-flow coatings, primer systems and systems needing limited thickening | Flow, wetting, anti-settling support and low viscosity build |
| Medium viscosity grade | Medium NDJ range | Interior latex paint, general water-based coatings and pigment/filler suspension | Viscosity build, roller feel, leveling and storage stability |
| High viscosity grade | High NDJ range | Exterior wall coating, texture coating and higher-build water-based systems | Anti-sag behavior, body, pigment suspension and application consistency |
| Very high viscosity grade | Very high NDJ range | Special high-build or heavy-filler coating formulations | Strong thickening, suspension and sag control without over-limiting leveling |
| Formula-adjusted grade | Defined by target grade | Customer-specific coating formulation or replacement discussion | Match NDJ method, pH, hydration process, dosage and full paint-system performance |
The NDJ viscosity levels above are for product-series discussion only. HEC viscosity results should not be compared without matching solution concentration, test temperature, rotor and speed. A coating buyer should provide the current reference grade, target NDJ condition and application requirement before final grade recommendation.
Application Discussion
Applications This Product Supports
Typical HEC application discussions help separate common use cases, while grade selection still depends on formulation targets and matched test conditions.
Interior Latex Paint
Confirm target NDJ viscosity, roller feel, leveling, pH condition and storage-stability requirement.
Exterior Wall Coating
Discuss anti-sag behavior, coating body, filler loading, weather-exposed application needs and formulation compatibility.
Texture Coating
High-viscosity or formula-adjusted HEC may be discussed where build, sag control and trowel/roller feel matter.
Pigment and Filler Suspension
Use the formulation context to discuss settling resistance, dispersion stability and batch consistency.
NDJ Viscosity Testing
Compare grades only under the same NDJ solution concentration, temperature, rotor and speed.
25kg Packaging and Storage
Standard packaging is 25kg/bag; confirm pallet, container loading, moisture-control and document requirements.
Buying Logic
Select by formulation performance
This section clarifies the decision factors that should be reviewed before quotation and sample matching.
Select HEC by coating system and NDJ test condition
A buyer usually already knows HEC is used in coatings. The page should help them confirm the proper grade by paint type, target viscosity, pH condition, filler loading, hydration process, dosage and storage-stability requirement.
Technical selection note
HEC should not be presented as a generic construction additive on this page. It helps coating systems with thickening, rheology, suspension and stability, but the final result depends on the full paint formulation, dosage, process and matched NDJ test conditions.
Selection basis: product identity, test method, formulation context and target performance should be reviewed together.
Inquiry Checklist
Packaging and Documents for a useful reply
Clear input lets the team confirm the correct grade, documents, packaging and quotation path faster.
Application
- Interior latex paint, exterior wall coating, texture coating, primer or other water-based coating system
- Current formulation type: emulsion, pigment/filler loading, pH and process condition
- Current reference grade, current dosage or target replacement direction
Specification
- Target NDJ viscosity plus solution concentration, temperature, rotor and speed
- Hydration time, dispersion sequence, lump-control or storage-stability requirement
- Anti-sag, leveling, roller feel, pigment suspension or viscosity-retention target
Quotation
- Quantity, destination country and shipment schedule
- Standard 25kg/bag packaging; confirm pallet or container loading request
- COA, MSDS, TDS, sample and batch-consistency requirements
Send your application, test method, target performance and order details so we can recommend the proper grade and quotation path.
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