Professional Solutions

LANDU — Additives for Cement Plaster & Cement Render

Advanced Performance for Modern Wall Systems

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From interior finishing coats to exterior façade renders, LANDU Construction Chemicals delivers additive technologies that transform ordinary cement‑sand mixes into stable, strong, and work‑friendly coatings.

Advanced Formulation

Our formulations – a balanced synergy of cellulose ether (HPMC / HEMC), redispersible polymer powder (RDP), hydrophobic powder (SHP), PCE superplasticizer, et defoamer – are engineered to achieve ideal viscosity, adhesion, water retention, and durability throughout every coating layer.

Consistent Results

Whether trowel‑ or spray‑applied, thin‑film or thick render, LANDU additives produce consistent results: resilient coatings, effortless application, and long‑term surface integrity under all climate conditions.

Interior Finishing

Smooth & flawless coats

Exterior Façade

Weather-resistant renders

Trowel & Spray

Versatile application

All Climates

Global performance

Explore Our Solutions →

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100% Performance Guaranteed

Long-Term Durability Tested

Global Normes de qualité

The Role of Additives in Cement Plaster & Render

Traditional Approach

Traditional cement plasters rely purely on water, cement, and sand – a simple formula that often falls short against today's construction standards of durability and finish.

Modern Solution

Additives modify how plaster behaves during application and curing, ensuring a stable, easy‑to‑work material that bonds securely and resists cracking.

With LANDU systems, you can achieve:

✓ Longer open time for large‑area projects

✓ Enhanced cohesion and surface strength

✓ Reduced cracking and shrinkage stresses

✓ Superior workability and smooth finish

✓ Reliable adhesion on diverse substrates (concrete, brick, AAC, and block)

✓ Effective water repellence that prevents efflorescence

Performance Advantages of LANDU Additive Technology

Moisture Retention

Keeps plaster hydrated for stronger bond formation and dust‑free finishes.

Smooth Workability

Controlled viscosity for uniform spreading and steady film build.

Résistance aux Fissures

RDP polymers absorb stress and improve impact durability.

Adhesion Versatility

Excellent grip on concrete, masonry, and lightweight substrates.

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LANDU Additives for Cement Plaster & Render

Éther de Cellulose

HPMC / HEMC K100

Water Retention & Rheology Optimization

Engineered to retain moisture and control viscosity, K100 ensures a consistent, workable texture throughout application.

Avantages Clés :

✓ Extended open time with stable hydration control
✓ Uniform layer thickness and excellent anti-sag stability
✓ Superior trowel smoothness and enhanced adhesion strength

Poudre de polymère redispersible

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Flexibility and Strength for Demanding Applications

A high‑rigidity polymer designed to reinforce adhesion and toughness in exterior base coats. RDP 5011N forms elastic polymer films within the cement matrix, enabling it to absorb substrate movement and boost bonding performance.

Avantages Clés :

✓ Outstanding crack bridging and impact resistance
✓ Stronger bonding to dense or aged substrates
✓ Enhanced weather durability and long-lasting surface protection

Hydrophobic Powder

SHP‑75

Water Repellency and Efflorescence Prevention

Ultra‑fine hydrophobic agents provide strong water repellence, blocking capillary absorption and reducing salt migration within the plaster layer.

Avantages Clés :

✓ Cleaner surface appearance and color stability
✓ Reduced damp patches, staining, or blooming
✓ Increased durability in humid or coastal conditions

Superplastifiant PCE

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Water Reduction with Upgraded Flow Performance

Advanced polycarboxylate ether (PCE) chemistry improves fluidity, density, and compaction without additional water, delivering high performance for modern rendering systems.

Avantages Clés :

✓ Higher compressive strength and surface hardness
✓ Improved pumpability for mechanical spray or flow applications
✓ Excellent compatibility with HPMC for balanced rheology control

Defoamer Powder

P200

Achieve Smooth and Defect‑Free Finishes

Designed to release entrapped air during mixing, P200 prevents voids, pinholes, and weak zones in cementitious coatings and renders.

Avantages Clés :

✓ Denser structure with improved compressive strength
✓ Uniform, blemish-free surface texture
✓ Optimized strength‑to‑weight performance

Why Choose LANDU

Two Decades of Expertise

in cellulose ether and polymer engineering.

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Production, audited batch tracking for quality consistency.

Custom Formulation & OEM

Available in bulk bags or private label packaging.

R&D and Application Support

Testing facilities equipped with MVR, SIS, and DSC analysis.

Reliable Global Supply Chain

75,000 tons capacity with FedEx / DHL worldwide delivery.

Common Questions

Questions fréquemment posées

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Answer:

Our R&D and Application Support Center offers complete assistance—from formulation optimization, mix testing, and lab analysis (MVR, SIS, and DSC) to on‑site training. Every customer receives expert consultation for consistent results across regions.

Is there a way to test the additives before bulk purchase?

Answer:

Yes. Join the LANDU Free Sample Program to evaluate compatibility in your own mortar mix. Each sample package includes 200–600 g of chosen additives, detailed datasheets, dosage guidance, and direct feedback from our technical team.

What is the shelf life and storage requirement for LANDU additives?

Answer:

Most LANDU powders remain fully effective for 12 – 24 months when stored in a dry, cool environment, away from direct sunlight and moisture. Always reseal opened bags tightly to prevent humidity absorption.

How can I order or request samples from abroad?

Answer:

LANDU maintains a global logistics network, with FedEx / DHL delivery to over 60 countries. Simply fill out the online "Request Sample / Contact Us" form—our team will coordinate shipping and technical documentation promptly.

What makes LANDU different from other construction chemical brands?

Answer:

With 20 years of engineering experience, ISO 9001 & EU REACH certifications, and 75,000 tons of annual capacity, LANDU ensures consistency, innovation, and reliability. We don't just supply additives — we build performance into your plaster systems.

Need Personal Guidance?

Contact our Technical Support Team for customized recommendations—formulation tuning, viscosity selection, or sample testing.

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LANDU — Additives for Cement Plaster & Cement Render

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Advanced Formulation

Consistent Results

Interior Finishing

Exterior Façade

Trowel & Spray

All Climates

The Role of Additives in Cement Plaster & Render

Traditional Approach

Modern Solution

With LANDU systems, you can achieve:

Performance Advantages of LANDU Additive Technology

Moisture Retention

Smooth Workability

Résistance aux Fissures

Adhesion Versatility

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LANDU Additives for Cement Plaster & Render

HPMC / HEMC K100

Water Retention & Rheology Optimization

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Flexibility and Strength for Demanding Applications

SHP‑75

Water Repellency and Efflorescence Prevention

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Water Reduction with Upgraded Flow Performance

P200

Achieve Smooth and Defect‑Free Finishes

Why Choose LANDU

Two Decades of Expertise

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Custom Formulation & OEM

R&D and Application Support

Reliable Global Supply Chain

Experience Before You Buy

LANDU Free Sample Program

Sample Package Includes:

Questions fréquemment posées

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Is there a way to test the additives before bulk purchase?

What is the shelf life and storage requirement for LANDU additives?

How can I order or request samples from abroad?

What makes LANDU different from other construction chemical brands?

Need Personal Guidance?

Partner with LANDU

Build Walls That Endure