Landu Novastar™
Construction Additive — C1 / C2 Tile Adhesive Specialist
Precision‑Engineered Tile Adhesive Additive for
Superior Bonding and Workability
Key Features
Optimized Viscosity Range
300 – 1500 mPa·s for precise rheology control
Specialized for Tile Adhesive Systems
C1 / C2 grade performance standards
Enhanced Bond Strength
Consistent and reliable adhesion performance
Smooth Workability
Professional installation experience and finish
Landu Novastar™
High-Performance HPS for Cement-Based Tile Bonding Applications
Landu Novastar™ ST3431 is specifically engineered to deliver optimized rheology and superior adhesion in tile adhesive systems. Its controlled viscosity range of 300 – 1500 mPa·s ensures a perfect balance of workability, open time, anti-sagging and bond strength — ideal for professional C1 and C2 formulations.
Developed through extensive testing under EN 12004 standards, ST3431 represents Landu's expertise in precision starch ether technology for tile adhesive manufacturers seeking consistent, high-quality performance.
Primary Applications
Landu Novastar™ ST3431 — Hydroxypropyl Starch Ether in Tile Adhesive Systems
Recommended Dosage
% of dry mix by application type
| Application Type | Typical Dosage | Range |
|---|---|---|
|
C1 Standard
|
0.15 – 0.25 % | |
|
C1 Enhanced Workability
|
0.20 – 0.30 % | |
|
C2 Enhanced
|
0.20 – 0.30 % | |
|
Large Format
|
0.25 – 0.35 % | |
|
Natural Stone
|
0.20 – 0.30 % | |
|
Exterior Applications
|
0.25 – 0.35 % |
Contact Landu's technical team for optimized dosage and formulation recommendations.
Get SupportDosage Range Overview
Mixing Procedure
Step-by-step preparation
Dry Blend
Dry‑blend ST3431 with cement and sand components until uniform distribution
Add Water Gradually
Add clean water gradually while mixing at 400 – 600 rpm
Hydration Standing
Allow 5 – 10 minutes standing time for full polymer hydration
Re‑mix to Workability
Re‑mix briefly to restore smooth, consistent workability before application
Storage & Handling
Conditions for optimal shelf life
Temperature
5 – 35 °C
Store in dry conditions
Sunlight
Avoid Direct
UV exposure degrades quality
Moisture
Keep Dry
Sealed bags required
Ventilation
Well-Ventilated
Adequate airflow required
Ideal viscosity provides excellent rheology for troweling and tile placement.
Creamy consistency reduces installer fatigue and ensures uniform coverage.
Molecular structure improves adhesion across substrates and tile types.
Supports tile alignment and adjustments in large areas.
Maintains tile position throughout curing on walls and vertical substrates.
Ensures proper cement hydration for maximum bond strength.
Strong thickening effect reduces material consumption — delivering more performance per gram and lowering overall formulation cost without compromising quality.
Landu Novastar™ ST3431 — Hydroxypropyl Starch Ether for Professional Bonding
C1 Standard
Reliable balance of tack, open time and workability for standard ceramic tiles.
C2 Enhanced
Higher strength and flexibility for demanding tile applications.
Large Format
Zero‑slip anti‑sagging performance for heavy tiles and moisture‑sensitive stone.
Exterior
Weather‑resistant C2 formulations combining polymer flexibility and high adhesion.
All formulations are reference guidelines. Actual dosages may vary based on substrate conditions, climate and project requirements. Contact Landu's technical team for customized formulation support.
Hydroxypropyl Starch Ether · Side-by-side specification analysis
| Product | Viscosity (mPa·s) | Ash (%) | Specialization | Best Use |
|---|---|---|---|---|
| ST3431 Featured | 300 – 1500 | ≤ 12 | Tile Adhesive Specialist | C1 / C2 Tile Adhesive |
| ST3411A | 100 – 1000 | ≤ 8 | C2 Premium | Premium Tile Adhesive |
| ST2442 | 2000 – 5000 | ≤ 12 | Multi-Functional | Tile Adhesive + Other Systems |
| ST1506A | 500 – 3500 | ≤ 12 | Universal | General Applications |
| ST3547 | 200 – 1500 | ≤ 8 | Economy | Standard Formulations |
C1 & C2 Optimized
Specifically tuned for standard and enhanced tile adhesive grades.
Best Rheology Balance
Optimal rheology and surface bonding balance for professional results.
Competitive Cost Performance
Professional-grade results at a competitive cost performance ratio.
EN 12004 Validated
Validated through rigorous EN 12004 compliance testing protocols.
Hydroxypropyl Starch Ether · Recommended formulation recipes by application type
All dosages are expressed as % by weight of total dry mix. Exact ratios should be validated through laboratory testing under EN 12004 conditions. Contact Landu technical support for customized formulation guidance.
Follow these five steps to achieve maximum bond strength, coverage and durability with ST3431-based tile adhesive systems.
Ensure all surfaces are clean, dry and structurally sound. Remove dust, grease, loose material and any previous coatings before application.
Mix adhesive uniformly to a lump-free consistency. Apply with a notched trowel — select 4–12 mm notch depth according to tile size and weight.
Achieve ≥ 80 % adhesive coverage for standard dry areas. Wet areas, pools and exterior facades require ≥ 95 % full-contact coverage.
Allow 24–48 hours of adequate curing before grouting. Foot traffic and load bearing should be avoided until full bond strength is achieved.
Protect freshly tiled surfaces from direct sunlight, rain and freezing temperatures for a minimum of 48 hours after installation.
Professional experts provide custom C1 / C2 formulation design, performance testing support, and installer training — tailored precisely to your mortar system requirements.
Explore the full Hydroxypropyl Starch Ether portfolio for every application
Partner with Landu to develop formulations achieving EN 12004 compliance and superior installer satisfaction.
