Landu Novastar™
Construction Additive — C2 Tile Adhesive Specialist
Low Ash, High Performance — Premium Solution for
C2 Tile Adhesive Applications
Professional Hydroxypropyl Starch Ether for High‑Performance C2 Tile Adhesive Formulations
Landu Novastar™ ST3411A Hydroxypropyl Starch Ether is a premium‑grade additive engineered to enhance bond strength and workability in C2 tile adhesives.
With its ultra‑low ash content (≤ 8 %) and precisely controlled viscosity (100 – 1000 mPa·s), ST3411A delivers outstanding whiteness, purity and rheological balance for high‑value applications.
Combining advanced Landu molecular engineering with tight process control, this grade meets the most demanding standards of EN 12004 C2 formulations and is the preferred choice for manufacturers targeting the premium tile adhesive market segment.
Landu Novastar™ ST3411A
White fine powder — CAS 9049‑76‑7
Hydroxypropyl Starch Ether for Premium Tile Adhesive Performance
Property Specifications
ST3411A — Tested & Certified Values
| Property | Specification | Status |
|---|---|---|
|
Appearance
|
White fine powder | Verified |
|
Viscosity
5% solution
|
100 – 1000 mPa·s | Verified |
|
pH
1% solution
|
4.0 – 8.5 | Verified |
|
Loss on Ignition
|
≤ 8.0 % | Verified |
|
Moisture Content
|
≤ 10 % | Verified |
|
Particle Size
|
≥ 98 % pass 100 mesh | Verified |
|
Bulk Density
|
500 – 900 g/L | Verified |
|
CAS Number
|
9049‑76‑7 | Verified |
Quality Standards
Landu Certification & Compliance
EN 12004 C2 Compliant
Exceeds EN 12004 C2 adhesive requirements for enhanced tile bonding performance.
Ultra‑Low Ash Specification
Maximum purity standard with ≤ 8 % ash content for superior whiteness and clarity.
ISO‑Certified Facilities
Produced in ISO‑certified Landu manufacturing facilities with rigorous process controls.
Premium Batch Consistency
Premium batch‑to‑batch consistency ensuring reliable formulation performance every time.
Key Spec Highlights
≤ 8 % ash content delivers enhanced whiteness and color clarity — the critical requirement for white tile and natural stone adhesive formulations.
Optimized to achieve ≥ 1.0 N/mm² bond strength and S1/S2 flexibility, meeting EN 12004 C2 formulation requirements.
100 – 1000 mPa·s provides perfect rheology for high‑polymer adhesives, ensuring optimal application consistency.
Smooth, creamy texture reduces applicator fatigue and enables effortless spreading across all tile formats and substrate types.
Longer working window for precise tile placement, critical for large‑format and natural stone installations.
When combined with flexible RDP and HPMC, meets C2S1/S2 classification for demanding deformable tile adhesive systems requiring superior movement accommodation and long‑term durability.
Perfect for white tile and natural stone adhesives. Ultra‑low ash ensures visual cleanliness, preventing discoloration through grout lines.
in C2 Tile Adhesive Systems — Dosage · Mixing · Storage
| Application Type | Typical Dosage (% of dry mix) | Range Visual |
|---|---|---|
| C2 Standard | 0.15 – 0.25 % | |
| C2S1 Deformable | 0.20 – 0.30 % | |
| C2S2 Highly Deformable | 0.25 – 0.35 % | |
| Large Format Premium | 0.25 – 0.35 % | |
| Natural Stone White | 0.20 – 0.30 % | |
| Premium Exterior | 0.25 – 0.35 % |
Exact dosage depends on target formulation. Contact Landu for premium C2 optimization guidance.
Blend ST3411A with all other dry components thoroughly before adding water.
Gradually add potable water while mixing at 400 – 600 rpm for 3 – 5 min.
Allow to stand 5 – 10 min for full hydration of the starch ether.
Briefly re‑mix before application to restore homogeneity.
Dry, ventilated space
5 – 35 °C
Moisture · Sunlight · Contaminants
12 months sealed
Four certified formulation systems — from standard C2 to extreme-flex facades
For demanding installations requiring ≥ 1.0 N/mm² bond strength and fine trowelability.
Enhanced deformation ≥ 2.5 mm for heated floors and moving substrates.
Maximum deformability (≥ 5 mm) for facades and extreme conditions.
Low‑ash whiteness avoids staining and discoloration in luxury stone and porcelain projects.
ST3411A vs. comparable grades — viscosity, purity, and application fit
| Product | Viscosity (mPa·s) | Ash (%) | Specialization | Best For |
|---|---|---|---|---|
|
ST3411A
Recommended
|
100 – 1000
|
≤ 8 % | C2 Premium | High-end tile adhesive, stone, white formulations |
|
ST3431
|
300 – 1500
|
≤ 12 % | Tile Adhesive | C1/C2 applications |
|
ST2442
|
2000 – 5000
|
≤ 12 % | Multi-Functional | Tile + Plaster Systems |
|
ST3547
|
200 – 1500
|
≤ 8 % | Economy | Cost-effective adhesives |
Lowest ash level ≤ 8 % delivers maximum purity and premium whiteness for white adhesive lines.
Optimized formulation chemistry ensures full compliance with EN 12004 C2 S1 and S2 deformability classifications.
100 – 1000 mPa·s ensures smooth pump flow and excellent rheo-stability across all application conditions.
Ultra-low ash prevents discoloration through grout lines — the definitive choice for luxury stone and porcelain.
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.
Every batch engineered to the highest purity standards — from raw material to certified delivery
Advanced purification technology and automated process control deliver consistent, premium-grade HPS in every batch.
Enhanced purification technology maintains ash content at ≤ 8 %, delivering the highest purity and whiteness index in every batch.
Real-time monitoring of viscosity, pH and whiteness index through fully automated quality control systems at every production stage.
Full bond strength and deformability testing per EN 12004 standards, verifying C2, S1 and S2 compliance for every production lot.
ISO 9001 quality management and ISO 14001 environmental certification underpin every aspect of the manufacturing and supply chain.
Hydroxypropyl Starch Ether (HPS) · Strategic differentiation for specification-driven markets
Ultra-pure HPS chemistry delivers consistently higher tensile adhesion, exceeding EN 12004 C2 thresholds and enabling confident specification in demanding substrate conditions.
Enhanced polymer compatibility allows S1 / S2 deformability classification, making ST3411A-based adhesives ideal for large-format tiles, underfloor heating, and movement-sensitive substrates.
Exceptional purity and minimal color contribution preserve the bright white appearance of finished adhesives — a critical quality signal for natural stone and luxury tile installations.
ST3411A is engineered for markets where performance credentials translate directly into price premium and brand equity.
High-end homes, villas, and bespoke interiors where adhesive whiteness and reliability are non-negotiable.
Hotels, retail flagships, and corporate spaces demanding certified performance and long-term durability.
Marble, travertine, and large-format stone where stain-free, ultra-white adhesive is an absolute requirement.
Architect- and engineer-specified projects where EN 12004 compliance documentation and premium additive sourcing are procurement criteria.
Landu Novastar™ ST3411A · Hydroxypropyl Starch Ether · Reliable worldwide delivery
25 ± 0.2 kg high-grade PE inner liner with reinforced valve bag outer — moisture-proof, dust-free, and handling-safe for global logistics.
Every bag prominently displays "Ultra-Low Ash ≤ 8 %" — a visible quality credential that differentiates ST3411A on the shelf and in specification documents.
Pallet shipments include a full quality certificate and Certificate of Analysis (CoA) — ready for procurement audit and EN 12004 compliance records.
Standard lead time 2–3 weeks. Priority shipping available for premium orders — ensuring your production schedule stays on track.
Landu Novastar™ ST3411A · Dedicated specialists for formulation, testing & market success
Tailored C2 / S1 / S2 recipes optimized for your raw materials, substrate conditions, and regional climate requirements.
EN 12004 compliance testing support, including tensile adhesion, slip resistance, and deformability classification data.
Strategic guidance on premium product positioning, specification documentation, and competitive differentiation in your target market.
On-site and remote training programs for applicators and distributors — ensuring correct usage and maximizing end-user satisfaction.
Lab Testing
On-Site Support
Our C2 specialists provide formulation customization, performance testing, market positioning support and installer training for premium adhesive solutions.
Explore the full Hydroxypropyl Starch Ether portfolio for every application
Tile Adhesive Specialist HPS
Optimized for C1/C2 tile adhesive systems with balanced viscosity and open time.
Multi-Functional Pro HPS
Versatile high-viscosity grade covering tile adhesive and plaster systems in one solution.
Universal Grade HPS
Broad-spectrum performance across multiple dry-mix mortar applications and substrates.
Economy Low-Ash HPS
Cost-effective low-ash grade delivering reliable performance for standard adhesive lines.
Join industry leaders who trust Landu's ultra-low ash technology for next-generation C2 tile adhesive formulations. Partner with our expert team to achieve EN 12004 compliance and superior installer satisfaction.
