C
6
O
8
H
1
Si
14
sales@landu-china.com +86 150 693 53616
Premium Gypsum Solutions

LANDU Gypsum Additives

Cellulose Ethers 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
cURL Too many subrequests.
Smooth application
Superior Adhesion
Strong bonding
Sag Resistance
Vertical stability
Crack Prevention
장기 내구성
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.

셀룰로오스 에테르
CE

셀룰로오스 에테르

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

수분 유지
cURL Too many subrequests.
Smooth Application
Learn More →
재분산성 폴리머 파우더
RDP

재분산성 폴리머 파우더

Enhances adhesion, flexibility, and long-term durability.

Superior Adhesion
Enhanced Flexibility
Long-term Durability
Learn More →
석고 지연제
지연제

석고 지연제

Controls setting time for consistent workability and curing.

Controlled Setting Time
Consistent Workability
Optimized Curing
Learn More →

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
Ideal for plasterboards, concrete walls, or gypsum ceilings
03

Joint Filling & Adhesives

Fill gaps between gypsum boards
Secure mounting of plasterboards on masonry
cURL Too many subrequests.
Joint Filling & Adhesives
cURL Too many subrequests.
04

cURL Too many subrequests.

cURL Too many subrequests.
cURL Too many subrequests.
cURL Too many subrequests.

cURL Too many subrequests.

01

cURL Too many subrequests.

cURL Too many subrequests.
cURL Too many subrequests.
02

cURL Too many subrequests.

cURL Too many subrequests.
cURL Too many subrequests.
03

cURL Too many subrequests.

cURL Too many subrequests.
cURL Too many subrequests.
04

cURL Too many subrequests.

cURL Too many subrequests.
cURL Too many subrequests.
05

cURL Too many subrequests.

cURL Too many subrequests.
Maintains workability for large-scale applications

Selection Guide – Recommended Products

Landercoll 셀룰로오스 에테르

Landercoll®

셀룰로오스 에테르

제품 cURL Too many subrequests. 성능
HEMC EM100 Hand-Applied Plaster / Gypsum Putty Excellent water retention, smooth application, extended open time
Novastar Gypsum Retarder

Novastar™

석고 지연제

cURL Too many subrequests. 적용 분야
P300 Gypsum-based systems for controlled setting time

정확™

Redispersible Polymer Powder (Optional)

Three specialized formulations for different performance requirements

Accurate 5011N Rigid
경질
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
Flexible
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)

Why Choose LANDU?

Experience

Over a decade of experience in construction chemical additives

Certification

ISO 9001 certified and EU REACH compliant

연구개발 실험실

Advanced R&D laboratories for formula optimization

글로벌 공급

Global supply capabilities and reliable logistics

무료 샘플 및 기술 지원

Experience the performance of LANDU Gypsum Additives before purchasing:

Free samples (200g–600g) of HEMC EM100, RDP 5011N, Gypsum Retarder P300
Technical data sheets (TDS) and application guides included
Formula recommendations and expert guidance for customized gypsum solutions
Free Sample Package
cURL Too many subrequests.
Expert Support

cURL Too many subrequests.

cURL Too many subrequests.

Q1

cURL Too many subrequests.

cURL Too many subrequests.

Q2

cURL Too many subrequests.

cURL Too many subrequests.

Q3

cURL Too many subrequests.

cURL Too many subrequests.

Q4

cURL Too many subrequests.

cURL Too many subrequests.

Q5

cURL Too many subrequests.

cURL Too many subrequests.

Q6

cURL Too many subrequests.

cURL Too many subrequests.

Q7

cURL Too many subrequests.

cURL Too many subrequests.

Q8

cURL Too many subrequests.

cURL Too many subrequests.

Landu 신소재 - 푸터
ko_KRKorean
en_USEnglish arArabic bg_BGBulgarian cs_CZCzech da_DKDanish nl_NLDutch etEstonian fiFinnish fr_FRFrench de_DEGerman elGreek hu_HUHungarian id_IDIndonesian it_ITItalian jaJapanese lvLatvian lt_LTLithuanian nn_NONorwegian pt_PTPortuguese (Portugal) pt_BRPortuguese (Brazil) ro_RORomanian ru_RURussian sk_SKSlovak sl_SISlovenian es_ESSpanish (Spain) es_MXSpanish (Mexico) sv_SESwedish tr_TRTurkish ukUkrainian ko_KRKorean