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Premium Gypsum Solutions

LANDU Gypsum Additives

Целлюлозные эфиры RDP Retarders

LANDU is a trusted manufacturer of high-performance cellulose ethers (CE), redispersible polymer powders (RDP), and gypsum retarders. Our additives are engineered to improve workability, adhesion, sag resistance, and crack prevention for both hand-applied and machine-applied gypsum systems.

Hand-Applied Systems
Machine-Applied Systems
Interior Finishing
Additives Range: CE / RDP / Retarders
Application: Gypsum Systems
Повышенная работоспособность
Smooth application
Superior Adhesion
Strong bonding
Сопротивление оседанию
Vertical stability
Профилактика трещин
Долговечность на длительный срок
Optimized Water Retention
Controlled Setting Time
Excellent Surface Finish
Enhanced Mechanical Strength

What Are Gypsum Additives?

Gypsum additives such as HPMC, HEMC, RDP, and gypsum retarders are essential for high-quality plaster, jointing, and trowelling compounds.

Эфир целлюлозы
CE

Эфир целлюлозы

Improves water retention, prevents rapid drying, and enhances workability. Ensures smooth application and reduces tool sticking.

Удержание воды
Повышенная работоспособность
Smooth Application
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Редиспергируемый полимерный порошок
RDP

Редиспергируемый полимерный порошок

Enhances adhesion, flexibility, and long-term durability.

Superior Adhesion
Enhanced Flexibility
Long-term Durability
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Гипсовый замедлитель
Замедлитель

Гипсовый замедлитель

Controls setting time for consistent workability and curing.

Controlled Setting Time
Consistent Workability
Optimized Curing
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Key Benefits

Smooth, crack-free surfaces
Superior workability and spreadability
Excellent anti-sagging performance
Enhanced adhesion and structural integrity

Typical Applications of Gypsum Additives

01

Hand-Applied & Machine-Applied Plaster

Hand-applied plasters for small areas, renovations, or touch-ups
Machine-applied plasters for continuous mixing and application (typical thickness ~10mm)
Hand-Applied & Machine-Applied Plaster
Trowelling Compounds
02

Trowelling Compounds

Level uneven walls or ceilings
Smooth, paintable finishes
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03

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Joint Filling & Adhesives
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04

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Prevents microcracks for long-lasting finish
04

Enhanced Adhesion & Durability

RDP improves bonding to substrates
Gypsum retarders ensure consistent set times
05

Cost Efficiency & Higher Yield

Optimized water retention reduces gypsum powder usage
Maintains workability for large-scale applications

Selection Guide – Recommended Products

Landercoll Целлюлозный Эфир

Landercoll®

Эфир целлюлозы

Продукт Recommended Application Производительность
HEMC EM100 Hand-Applied Plaster / Gypsum Putty Excellent water retention, smooth application, extended open time
Novastar Gypsum Retarder

Novastar™

Гипсовый замедлитель

Grade Применение
P300 Gypsum-based systems for controlled setting time

Точный™

Redispersible Polymer Powder (Optional)

Three specialized formulations for different performance requirements

Accurate 5011N Rigid
Rigid
5011N

Maximum Structural Strength

Enhanced adhesion to substrates
Superior structural integrity
Ideal for load-bearing applications
Best For: Heavy-duty gypsum systems
Accurate 4025N Semi-flexible
Semi-flexible
4025N

Balanced Performance

Optimal flexibility for crack prevention
Maintains structural stability
Versatile for various substrates
Best For: General-purpose applications
Accurate 5045N Flexible
Гибкий
5045N

Ultimate Flexibility

Maximum crack resistance
Superior durability in movement zones
Excellent for dynamic substrates
Best For: High-movement areas

Recommended Combination for Optimal Gypsum Performance:

HEMC EM100 + Gypsum Retarder P300 + RDP (Choose based on application)

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Опыт

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Certification

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Лаборатория НИОКР

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Global Supply

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Free Sample Package
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Q1

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Q2

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Q3

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Q4

How should I store gypsum additives?

Keep in a cool, dry place, away from moisture and direct sunlight. Proper storage ensures consistent performance.

Q5

Are LANDU gypsum additives suitable for renovations?

Absolutely. Our joint fillers, trowelling compounds, and hand-applied plasters are ideal for renovation projects and small-scale applications.

Q6

Can LANDU assist with custom formulations?

Yes. Our technical team can provide tailored solutions, dosage guidance, and compatibility testing.

Q7

Do LANDU gypsum additives improve crack resistance?

Yes. Proper combination of HEMC + RDP + Gypsum Retarder reduces shrinkage stress and prevents microcracks.

Q8

How fast can I receive my order?

LANDU provides fast global delivery via FedEx or DHL for both small and bulk orders.

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