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Landu Novastar™ HPS - Modern Hero
Eco-Certified Innovation

Landu Novastar™ Hydroxypropyl Starch Ether (HPS)

Revolutionizing construction with plant-based, high-performance solutions for sustainable mortar applications.

100% Renewable

Plant-based materials

Biodegradable

Eco-friendly formula

High Performance

Superior quality

LANDU Innovative Laboratories
98%
Purity Rate
Landu Sales Meeting
Cellulose Ether Solution
ISO 9001 Certified
15+
Years Experience
500+
Global Clients
50+
Countries Served
Product Overview - Landu Novastar™ HPS
Product Overview

What is Landu Novastar™ Hydroxypropyl Starch Ether (HPS)?

Eco‑Friendly Water‑Retention Polymer for Mortar & Adhesive Formulations

Hydroxypropyl Starch Ether Novastar Products Sample
CAS Number 9049‑76‑7
Origin 100% Plant Based

Hydroxypropyl Starch Ether (HPS, CAS 9049‑76‑7) by Landu is a polysaccharide‑based polymer derived from renewable plants through advanced etherification and modification technology.

This fine, plasticizer‑free white powder differs fundamentally from ordinary modified starches and provides a clean, stable, sustainable construction additive.

Key Characteristics

Natural & Eco‑Safe

100% plant origin, biodegradable, non‑toxic, odorless

High Solubility

Quickly disperses in cold water with excellent solution stability

Optimized Modification

Hydroxypropyl content 16–32% ensures consistent quality

Functional Versatility

Provides water retention, thixotropy control & anti‑sagging

Technical Strengths - Landu Novastar™ HPS
Technical Strengths

Why Landu Novastar™ Starch Ether Technology Leads the Industry

Molecular Innovation for High‑Performance Construction Additives

Core Technical Features

Improved Thixotropy

Prevents sagging and increases yield value

Optimized Water Management

Balances retention for better cohesion and smoothness

Uniform Dispersion

Ensures even distribution for consistent rheology

Micro‑Film Formation

Creates protective barriers that resist micro‑cracking

Performance Advantages

Better workability and application feel
Extended open time for tile adhesives
Superior anti‑slip and anti‑sag control
Enhanced adhesion strength and water resistance
Compatible with pH 4.0 – 8.5 formulations
40 – 70% Branched Chains

Landu's advanced molecular design creates a dense network that enhances multiple aspects of mortar performance

Hydroxypropyl Starch Ether Molecular Structure
Advanced Molecular Structure
Application Solutions - Landu HPS
Application Solutions
Novastar™ Series

Landu Hydroxypropyl Starch Ether for Mortar & Tile Adhesive Systems

Comprehensive Construction Additive Solutions

Our HPS series (additives) are custom‑engineered to optimize workability, adhesion, and sustainability across modern mortar formulations

Gypsum & Putty Systems

Gypsum & Putty Systems

Improved trowelability and surface finish

Recommended Grades:
ST1403B ST1506A ST1703A ST3547
Tile Adhesives

Tile Adhesives (C1/C2)

Longer open time, enhanced wetting, anti‑slip performance

Recommended Grades:
ST3431 ST3411A ST2442
Plastering

Machine & Hand‑Applied Plastering

Superior thixotropy for efficient spray or manual work

Recommended Grades:
ST2109 ST1703A ST2442 ST1506A

EIFS / ETICS Bonding Mortars

Higher adhesion and durable bond strength

Recommended Grades:
ST3547 ST3411A ST2442
Product Portfolio - Landu Novastar™ HPS
Product Portfolio

Landu Novastar™ Hydroxypropyl Starch Ether Product Portfolio

Engineered Grades for High‑Value Construction Performance

Our Novastar™ Hydroxypropyl Starch Ether range covers viscosities from 100 to 5000 mPa·s, meeting the precise requirements of gypsum‑, cement‑, and polymer‑based systems. All grades maintain optimum stability in pH 4.0–8.5.
General‑Purpose Series

Landu Novastar™ HPS

ST1403B
Versatile Grade

ST1403B

500–1000 mPa·s
pH 4.0–8.5
Ash ≤ 12%

Ideal for gypsum and lime putty applications.

ST1506A
Universal Grade

ST1506A

500–3500 mPa·s
pH 4.0–8.5
Ash ≤ 12%

Broad viscosity range for varied construction needs.

ST3547
Economy Grade

ST3547

200–1500 mPa·s
pH 4.0–8.5
Ash ≤ 8%

Cost‑efficient solution for plastering and EIFS systems.

High‑Performance Series

Novastar™ HPS

ST1703A
High Performance

ST1703A

1500–4000 mPa·s

Optimized for machine spray mortars

ST2109
High Performance

ST2109

1000–5000 mPa·s

Mechanized application specialist

ST2442
High Performance

ST2442

2000–5000 mPa·s

Multi‑functional grade for diverse systems

Specialized Series

Hydroxypropyl Starch Ether for Tile Adhesives

ST3431
Tile Adhesive Expert

ST3431

3000–5000 mPa·s

Outstanding open time & compatibility

ST3411A
Tile Adhesive Premium

ST3411A

100–1000 mPa·s

C2 system performance grade

Product Portfolio - Landu Novastar™ HPS
Product Portfolio

Landu Novastar™ Hydroxypropyl Starch Ether Product Portfolio

Engineered Grades for High‑Value Construction Performance

Our Novastar™ Hydroxypropyl Starch Ether range covers viscosities from 100 to 5000 mPa·s, meeting the precise requirements of gypsum‑, cement‑, and polymer‑based systems. All grades maintain optimum stability in pH 4.0–8.5.
General‑Purpose Series

Landu Novastar™ HPS

ST1403B
Versatile Grade

ST1403B

500–1000 mPa·s
pH 4.0–8.5
Ash ≤ 12%

Ideal for gypsum and lime putty applications.

ST1506A
Universal Grade

ST1506A

500–3500 mPa·s
pH 4.0–8.5
Ash ≤ 12%

Broad viscosity range for varied construction needs.

ST3547
Economy Grade

ST3547

200–1500 mPa·s
pH 4.0–8.5
Ash ≤ 8%

Cost‑efficient solution for plastering and EIFS systems.

High‑Performance Series

Novastar™ HPS

ST1703A
High Performance

ST1703A

1500–4000 mPa·s

Optimized for machine spray mortars

ST2109
High Performance

ST2109

1000–5000 mPa·s

Mechanized application specialist

ST2442
High Performance

ST2442

2000–5000 mPa·s

Multi‑functional grade for diverse systems

Specialized Series

Hydroxypropyl Starch Ether for Tile Adhesives

ST3431
Tile Adhesive Expert

ST3431

3000–5000 mPa·s

Outstanding open time & compatibility

ST3411A
Tile Adhesive Premium

ST3411A

100–1000 mPa·s

C2 system performance grade

Landu Novastar™ HPS - Modern Hero
Eco-Certified Innovation

Landu Novastar™ Hydroxypropyl Starch Ether (HPS)

Revolutionizing construction with plant-based, high-performance solutions for sustainable mortar applications.

100% Renewable

Plant-based materials

Biodegradable

Eco-friendly formula

High Performance

Superior quality

LANDU Innovative Laboratories
98%
Purity Rate
Landu Sales Meeting
Cellulose Ether Solution
ISO 9001 Certified
15+
Years Experience
500+
Global Clients
50+
Countries Served