Professional Solutions

LANDU — Additives for Cement Plaster & Cement Render

Advanced Performance for Modern Wall Systems

Premium Grade Certified Quality

Complete Solution

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 superplasticizer와 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

장기적 Durability Tested

Global Quality Standards

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

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Dry-Mix Production

Dry‑mix ready‑bag mortar production

Insulation Systems

EIFS / ETICS insulation systems and repair plasters

Finishing Layers

Smooth skim coats or restoration layers

LANDU Additives for Cement Plaster & Render

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HPMC / HEMC K100

Water Retention & Rheology Optimization

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

주요 이점:

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

재분산성 폴리머 파우더

RDP 5011N

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.

주요 이점:

✓ 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.

주요 이점:

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

PCE 슈퍼플라스티사이저

540P

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.

주요 이점:

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

거품 제거제 파우더

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.

주요 이점:

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

Common Questions

자주 묻는 질문

Everything you need to know about LANDU additives for cement plaster & render

Which LANDU additive is most effective for improving workability and water retention in cement plaster?

Answer:

Our HPMC / HEMC K100 cellulose ether delivers outstanding moisture retention and rheology balance. It prevents premature drying, ensures anti‑sag stability, and maintains consistent smoothness during trowel or spray application.

How much HPMC should be used in a cement render mix?

Answer:

The recommended dosage is 0.2 – 0.5 % by the weight of cement. The exact addition depends on sand grading, temperature, and desired open time. Our technical team can fine‑tune the ratio based on your regional materials.

Which RDP grade is best for crack resistance and adhesion strength?

Answer:

For exterior or high‑stress applications, RDP 5011N provides robust adhesion and impact resistance. For flexible or repair mortars, choose RDP 5045N, while RDP 4025N offers all‑round versatility for general renders.

How can I minimize sagging during vertical application?

Answer:

Combine a high‑viscosity HPMC grade (K100 or K150) with a suitable RDP polymer. This dual system stabilizes the mix, improves cohesion, and keeps your plaster in place—especially useful for thick‑layer vertical renders.

Can LANDU customize additive formulas for local raw materials or private label brands?

Answer:

Absolutely. LANDU provides OEM and custom‑formulation services, adapting cellulose ether viscosity, polymer ratios, and hydrophobic content to match your local cement chemistry and sand profile. Private‑label packaging is also available.

What type of technical support does LANDU offer?

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

Complete Solution

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:

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수분 유지

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Dry-Mix Production

Insulation Systems

Finishing Layers

Global Performance

LANDU Additives for Cement Plaster & Render

HPMC / HEMC K100

Water Retention & Rheology Optimization

RDP 5011N

Flexibility and Strength for Demanding Applications

SHP‑75

Water Repellency and Efflorescence Prevention

540P

Water Reduction with Upgraded Flow Performance

P200

Achieve Smooth and Defect‑Free Finishes

Why Choose LANDU

Two Decades of Expertise

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Sample Package Includes:

자주 묻는 질문

Which LANDU additive is most effective for improving workability and water retention in cement plaster?

How much HPMC should be used in a cement render mix?

Which RDP grade is best for crack resistance and adhesion strength?

How can I minimize sagging during vertical application?

Can LANDU customize additive formulas for local raw materials or private label brands?

What type of technical support does LANDU offer?

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?

LANDU와 파트너십을 맺으세요

Build Walls That Endure