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
Pagerinta darbo eiga
Smooth application
Superior Adhesion
Strong bonding
Sag Resistance
Vertical stability
Įtrūkimų prevencija
Ilgalaikis patvarumas
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.

Celiuliozės eteris
CE

Celiuliozės eteris

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

Vandens sulaikymas
Pagerinta darbo eiga
Smooth Application
Learn More →
Redispersuojamas polimerų milteliai
RDP

Redispersuojamas polimerų milteliai

Enhances adhesion, flexibility, and long-term durability.

Superior Adhesion
Enhanced Flexibility
Long-term Durability
Learn More →
Gipso lėtiklis
Lėtiklis

Gipso lėtiklis

Controls setting time for consistent workability and curing.

Controlled Setting Time
Consistent Workability
Optimized Curing
Learn More →

Pagrindinės naudos

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

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.
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

Įtrūkimų atsparumas

Uniform hydration reduces shrinkage stress
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 Cellulozės Eteris

Landercoll®

Celiuliozės eteris

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

Novastar™

Gipso lėtiklis

Grade Paskirtis
P300 Gypsum-based systems for controlled setting time

Accurate™

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
Flexible
5045N

Ultimate Flexibility

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

cURL Too many subrequests.

cURL Too many subrequests.

cURL Too many subrequests.

Experience

cURL Too many subrequests.

Certification

cURL Too many subrequests.

Mokslinių tyrimų ir plėtros laboratorija

cURL Too many subrequests.

Pasaulinės tiekimo galimybės

cURL Too many subrequests.

cURL Too many subrequests.

cURL Too many subrequests.

cURL Too many subrequests.
cURL Too many subrequests.
cURL Too many subrequests.
Free Sample Package
cURL Too many subrequests.
cURL Too many subrequests.

cURL Too many subrequests.

cURL Too many subrequests.

Q1

cURL Too many subrequests.

cURL Too many subrequests.

Q2

How do gypsum retarders like P300 help?

They control the setting time, preventing rapid hardening and ensuring smooth application and workability.

Q3

Can RDP powders be combined with cellulose ethers?

Yes. RDP + HEMC improves adhesion, flexibility, and crack resistance.

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.

Landu Nauji Materialai - Padas
lt_LTLithuanian
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 ko_KRKorean lvLatvian 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 lt_LTLithuanian