| What You Need to Know | Key Details |
|---|---|
| What is LANDERCOLL HEC? | A non-ionic cellulose ether used as a thickener, stabilizer, and rheology modifier in water-based paints. |
| Main Benefits | Viscosity Control, Enhanced Stability, Improved Application |
| Best For | Interior & Exterior Paints, Primers, Texture Coatings |
| Cost Range | Economical solution for achieving high performance. |
Are you battling sagging, poor flow, or unstable formulations in your water-based paints? These challenges can lead to rework, customer dissatisfaction, and ultimately, increased costs. LANDERCOLL Hydroxyethyl Cellulose (HEC) offers a powerful and versatile solution to these common problems, improving paint performance from production to application.
Hydroxyethyl cellulose (HEC) is a water-soluble polymer derived from cellulose, a natural component of plant cell walls. According to the National Center for Biotechnology Information, HEC is formed through the etherification of cellulose with hydroxyethyl groups, creating a non-ionic, water-soluble polymer with unique rheological properties. This modification makes the cellulose readily soluble in water and gives it exceptional properties that are invaluable in water-based paint formulations.
Water-based paint represents a complex mixture of pigments (for color), binders (for adhesion), solvents (primarily water), and additives (for performance enhancement). LANDERCOLL HEC functions as a crucial rheology modifier through several scientifically-proven mechanisms:
Lower viscosity HEC grades (300-500 mPa·s) provide cost-effective thickening while maintaining basic stability and preventing pigment settling. These grades offer essential performance at competitive pricing.
Ultra-high viscosity HEC grades create the rheological properties necessary for texture coatings, preventing settling of texturing agents while maintaining workability.
LANDERCOLL HEC significantly extends paint open time by binding water molecules through hydrogen bonding. This extended workability prevents lap marks and allows for seamless application, particularly valuable in challenging environmental conditions.
| LANDERCOLL HEC Grade | Viscosity (2% solution, 20°C, Brookfield) | Typical Applications | Key Features |
|---|---|---|---|
| LANDERCOLL HEC-30 | 300-500 mPa.s | Economy Grade Interior Paints | Cost-effective thickening, good pigment suspension |
| LANDERCOLL HEC-100 | 800-1200 mPa.s | Standard Grade Interior/Exterior Paints | Balanced performance, good flow and leveling, excellent sag resistance |
| LANDERCOLL HEC-250 | 2300-2700 mPa.s | Premium Grade Paints, Texture Coatings | High viscosity, superior sag resistance, excellent water retention |
| LANDERCOLL HEC-Custom | Tailored to customer specifications | Specialized Applications | Customized viscosity and performance characteristics to meet specific formulation needs. |
| Paint Type | Recommended LANDERCOLL HEC Grade | Technical Rationale |
|---|---|---|
| Economy Interior Paint | LANDERCOLL HEC-30 | Cost-effective thickening and pigment suspension. |
| Standard Interior Paint | LANDERCOLL HEC-100 | Balanced performance for general-purpose applications. |
| Premium Exterior Paint | LANDERCOLL HEC-250 | High viscosity for superior sag resistance and durability. |
| Texture Coating | LANDERCOLL HEC-250 | Very high viscosity to suspend texturing agents and create desired texture. |
| Spray Applied Paint | LANDERCOLL HEC-30 or HEC-100 | Lower viscosity to facilitate easy spraying. |
| Formulation Challenge | LANDERCOLL HEC Solution |
|---|---|
| Pigment Settling During Storage | Increase paint viscosity with appropriate HEC grade to improve pigment suspension and prevent settling. |
| Paint Sagging on Vertical Surfaces | Utilize higher viscosity LANDERCOLL HEC grade to increase sag resistance and ensure uniform film thickness. |
| Poor Flow and Leveling Performance | Optimize HEC dosage and consider combination with complementary rheology modifiers to achieve ideal flow characteristics. |
1. Pre-dispersion: Slowly add LANDERCOLL HEC to water under high-shear mixing to prevent agglomeration
2. Hydration Phase: Allow complete hydration for 20-30 minutes until clear, homogeneous solution forms
3. Integration: Incorporate HEC solution into paint base with thorough mixing
4. Optimization: Adjust concentration to achieve target rheological properties
Professional Tip: Pre-wetting HEC with water-miscible solvents (such as propylene glycol) can significantly improve dispersion efficiency and reduce hydration time.
| Parameter | Specification |
| Packaging | 25 kg multi-wall paper bags with PE liner |
| Minimum Order Quantity | 1 metric ton |
| Lead Time | 2-4 weeks (varies by location and volume) |
| Payment Terms | T/T, L/C at sight |
| Transportation | Sea freight, air freight available |
| Sample Policy | Complimentary samples and technical evaluation |
Contact LANDU today to discuss your specific formulation requirements and discover how our advanced HEC solutions can enhance your paint performance while optimizing production costs. Our commitment to technical excellence and customer success makes us your ideal partner for achieving optimal water-based paint formulations.
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