--- title: "Home" url: https://landuchina.eu/ description: "LANDU manufactures cellulose ethers, redispersible polymer powders and specialty construction additives in China. Explore product grades, applications and sample support." author: "landuexpand@gmail.com" date_published: 2026-10-12T08:09:04+00:00 date_modified: 2026-10-13T07:31:01+00:00 language: en-US type: page generator: LemonX AEO 1.4.8 --- # Home ![LANDU automatic production line — real factory photo](https://landuchina.eu/wp-content/uploads/2026/06/LANDU-Automatic-Production-line.jpg) LANDU · CHINA-BASED B2B ADDITIVE MANUFACTURER # Cellulose Ether *&* Construction Additives Manufacturer LANDU manufactures and supplies HPMC, HEMC/MHEC, HEC, redispersible polymer powders and specialty additives. We support dry-mix mortar producers, formulation engineers and procurement teams serving European and international markets. [Request a Sample](https://landuchina.eu/contact-us/)Explore Our Products CHINA-BASED MANUFACTURERAPPLICATION-LED GRADE SELECTIONSAMPLES & TECHNICAL DATA 01 — PRODUCT PORTFOLIOSCROLL TO DISCOVER OUR PRODUCT PORTFOLIO ## Cellulose ethers, RDP and specialty additives. Explore functional raw materials for tile adhesive, wall putty, self-leveling compounds, EIFS/ETICS and related formulations. Compare additive families before selecting a product grade. ![LANDERCOLL product brand logo](https://landuchina.eu/wp-content/uploads/2025/06/LANDERCOLL.png)LANDERCOLLCELLULOSE ETHERS![ACCURATE product brand logo](https://landuchina.eu/wp-content/uploads/2025/06/ACCURATE-1.png)ACCURATEREDISPERSIBLE POLYMERS![NOVASTAR product brand logo](https://landuchina.eu/wp-content/uploads/2025/12/NOVASTAR.png)NOVASTARSPECIALTY ADDITIVES 01 / LANDERCOLL® ### Cellulose Ether Solutions Water retention, rheology and application consistency for construction and water-based formulations. ![Hydroxypropyl Methylcellulose](https://landuchina.eu/wp-content/uploads/2025/06/LANDU-HPMC-Hydroxypropyl-Methyl-Cellulose-product.jpg)LANDERCOLL® · 01 ### HPMC Hydroxypropyl Methylcellulose Construction-grade HPMC for water retention, workable consistency and rheology control in tile adhesives, wall putty and cement-based mortars. Grade suitability depends on the complete formulation. [View HPMC grades](https://landuchina.eu/products-and-solutions/hydroxypropyl-methylcellulose-manufacturer/) ![Hydroxyethyl Methylcellulose](https://landuchina.eu/wp-content/uploads/2025/06/LANDU-HEMC-Hydroxyethyl-Methyl-Cellulose-product.jpg)LANDERCOLL® · 02 ### HEMC / MHEC Hydroxyethyl Methylcellulose HEMC/MHEC cellulose ether grades for water retention and workability in tile adhesives, render and dry-mix mortar systems. Evaluate thermal and rheological requirements by formulation. [Explore HEMC / MHEC grades](https://landuchina.eu/mhec-hydroxyethyl-methyl-cellulose/) ![Hydroxyethyl Cellulose](https://landuchina.eu/wp-content/uploads/2025/06/LANDU-HEC-Hydroxyethyl-Cellulose-product.jpg)LANDERCOLL® · 03 ### HEC Hydroxyethyl Cellulose Hydroxyethyl cellulose (HEC) grades for thickening, in-can stability and application rheology in water-based paints and coatings, subject to grade and system compatibility. [View HEC grades & specifications](https://landuchina.eu/products-and-solutions/landercoll-cellulose-ether/hec-factory-certified-hydroxyethyl-cellulose-powder/) **Also in the LANDERCOLL range:** CMC for selected industrial and specialty formulations. [View cellulose ether portfolio](https://landuchina.eu/products-and-solutions/landercoll-cellulose-ether/) **Explore the full range:**[All LANDU products and solutions](https://landuchina.eu/products-and-solutions/) 02 / ACCURATE™ ## Redispersible Polymer Powders Redispersible polymer powder (RDP) grades for dry-mix mortar producers evaluating adhesion, flexibility and water-resistance requirements. Match polymer type to the binder system and intended application. ![Semi-Flexible RDP](https://landuchina.eu/wp-content/uploads/2026/06/半柔性.jpg) ### Semi-Flexible RDP A starting point for balancing adhesion and moderate flexibility in dry-mix mortar formulations. [Explore RDP grades](https://landuchina.eu/products-and-solutions/china-rdp-powder-supplier-landu-accurate-high-performance-customizable-solutions/) ![Flexible RDP](https://landuchina.eu/wp-content/uploads/2026/06/柔性RDP.jpg) ### Flexible RDP For formulations where polymer flexibility and movement accommodation are important selection criteria. [Explore RDP grades](https://landuchina.eu/products-and-solutions/china-rdp-powder-supplier-landu-accurate-high-performance-customizable-solutions/) ![Hydrophobic RDP](https://landuchina.eu/wp-content/uploads/2026/04/LANDU-ACCURATE-Hydrophobic-Redispersible-Polymer.jpg) ### Hydrophobic RDP A grade category worth evaluating where reduced water uptake is part of the performance target. [Explore RDP grades](https://landuchina.eu/products-and-solutions/china-rdp-powder-supplier-landu-accurate-high-performance-customizable-solutions/) 03 / NOVASTAR™ ## Specialty Additives Target particular formulation needs—flow, air control, setting time, water repellency and rheology—using functional raw materials rather than a one-size-fits-all additive package. [View NOVASTAR range](https://landuchina.eu/products-and-solutions/novastar-specialty-additives/) 01 ### PCE Superplasticizer Water reduction and flow adjustment in compatible cementitious and self-leveling formulations. [View details](https://landuchina.eu/products-and-solutions/polycarboxylate-superplasticizer-pce/) 02 ### Silicone Hydrophobic Powder Water-repellent additive for cementitious mortars requiring reduced capillary water absorption. [View details](https://landuchina.eu/products-and-solutions/novastar-specialty-additives/novastar-shp-the-ultimate-silicone-hydrophobic-powder-for-building-protection/) 03 ### Gypsum Retarder Working-time and setting-time control for gypsum-based plaster and jointing systems. [View details](https://landuchina.eu/products-and-solutions/novastar-specialty-additives/gypsum-retarder/) 04 ### Powder Defoamer Foam-control additive for selected powder-based mortar and self-leveling systems. [View details](https://landuchina.eu/products-and-solutions/novastar-specialty-additives/novastar-powder-defoamer-high-performance-defoamer-for-construction-materials/) 05 ### Hydroxypropyl Starch Ether (HPS) Additional rheology and anti-sag support in suitable mortar formulations. [View details](https://landuchina.eu/products-and-solutions/novastar-specialty-additives/novastar-hydroxypropyl-starch-ether-hps-premium-solutions-for-construction-materials/) 06 ### Polypropylene Fiber (PP Fiber) Microfiber reinforcement for plastic-shrinkage crack control in appropriate cementitious mixtures. [View details](https://landuchina.eu/products-and-solutions/novastar-specialty-additives/polypropylene-fiber/) ![LANDU automatic manufacturing production line](https://landuchina.eu/wp-content/uploads/2026/06/LANDU-Automatic-Production-line.jpg)MANUFACTURING / PRODUCTION![LANDU factory control room](https://landuchina.eu/wp-content/uploads/2025/05/landu-factory-control-room.jpg) ABOUT LANDU ## Manufacturing expertise. Formulation-focused support. Shandong Landu New Material Co., Ltd. is a China-based manufacturer and supplier of cellulose ethers, redispersible polymer powders and functional chemical additives for construction and selected industrial applications. For European and international B2B buyers, LANDU supports additive-grade selection discussions based on application requirements, available technical data and sample evaluation. Destination-specific documentation and supply details should be confirmed before ordering. 01**Manufacturing**Production and product supply02**Quality checks**Grade and batch documentation03**Technical support**Application-oriented evaluation[Learn more about LANDU](https://landuchina.eu/company/) ![LANDU RDP manufacturing facility](https://landuchina.eu/wp-content/uploads/2025/12/LANDU-RDP-FACTORY.jpg) MANUFACTURING & QUALITY ## Built to support consistent supply. Explore LANDU’s manufacturing, quality assurance and application-development capabilities. Supporting documents and grade-specific information are available on request. [Quality & Assurance](https://landuchina.eu/company/quality-control-and-assurance/)[Innovation Center](https://landuchina.eu/company/innovation-center/) WHERE OUR ADDITIVES WORK ## Solutions for real application demands. Find additives by construction application rather than by product name alone. Compare performance targets, then follow the links to application-level selection guidance. [!\[LANDU additive applications: Tile Adhesive\](https://landuchina.eu/wp-content/uploads/2026/04/installing-ceramic-tiles-on-the-wall-in-kitchen-2024-12-08-02-45-42-utc.jpg)APPLICATION 01](https://landuchina.eu/tile-adhesive-additives-solutions/) ### Tile Adhesive Open time, slip control and adhesion requirements HPMC · HEMC · RDP · HPS [!\[LANDU additive applications: Wall Putty & Skim Coat\](https://landuchina.eu/wp-content/uploads/2026/04/ScreenShot_2026-04-28_103532_979.jpg)APPLICATION 02](https://landuchina.eu/skim-coat-wall-putty-additives/) ### Wall Putty & Skim Coat Water retention, application feel and sag resistance HPMC · HEMC · RDP · HPS [!\[LANDU additive applications: Cement Render & Plaster\](https://landuchina.eu/wp-content/uploads/2026/04/LANDU-cement-render-1-2.jpg)APPLICATION 03](https://landuchina.eu/cement-render-plaster-additives/) ### Cement Render & Plaster Workability and consistent mortar application HPMC · HEMC · RDP [!\[LANDU additive applications: EIFS / ETICS\](https://landuchina.eu/wp-content/uploads/2026/04/ScreenShot_2026-04-28_103645_045.jpg)APPLICATION 04](https://landuchina.eu/eifs-system-additives/) ### EIFS / ETICS System-layer adhesion, flexibility and workability RDP · HPMC · HEMC [!\[LANDU additive applications: Self-Leveling Compound\](https://landuchina.eu/wp-content/uploads/2026/04/construction-worker-leveling-concrete-surface-1-1.jpg)APPLICATION 05](https://landuchina.eu/self-leveling-compound-additives/) ### Self-Leveling Compound Flowability balanced with suspension stability PCE · Cellulose Ether · Defoamer [!\[LANDU additive applications: Gypsum-Based Materials\](https://landuchina.eu/wp-content/uploads/2026/07/handyman-plastering-walls-with-gypsum-plaster-and-2025-03-13-20-46-23-utc.jpg)APPLICATION 06](https://landuchina.eu/gypsum-applications/) ### Gypsum-Based Materials Working time, setting behavior and rheology Gypsum Retarder · HPMC · HEMC [!\[LANDU additive applications: Waterproof Mortar\](https://landuchina.eu/wp-content/uploads/2025/08/waterproofing-of-the-bathroom-floor-in-a-new-building.jpg)APPLICATION 07](https://landuchina.eu/waterproof-mortar-additives/) ### Waterproof Mortar Capillary water absorption and workable mortar consistency Hydrophobic Powder · RDP · HPMC [!\[LANDU additive applications: Grouting Mortar\](https://landuchina.eu/wp-content/uploads/2026/04/ScreenShot_2026-04-28_103807_348.jpg)APPLICATION 08](https://landuchina.eu/grouting-mortar-additives/) ### Grouting Mortar Flow, consistency and bonding performance Cellulose Ether · RDP · PCEFinal additive selection depends on the binder system, formulation and application testing. **More construction applications:**[Repair mortar additives](https://landuchina.eu/applications/repair-mortar/)[All construction applications](https://landuchina.eu/applications/building-material/) PRODUCT × APPLICATION SELECTION ## Find the right grade for your application. Start with a defined material and end-use requirement. These product-focused pages help technical and purchasing teams evaluate suitable additive grades without confusing them with complete mortar systems. LANDERCOLL® HPMC · TILE ADHESIVES ### HPMC for Tile Adhesive Assess water retention, open time, anti-slip behavior and workability when selecting HPMC grades for cementitious tile adhesives. [Explore HPMC for tile adhesive](https://landuchina.eu/products-and-solutions/tile-adhesive-hpmc-supplier/) LANDERCOLL® HPMC · WALL FINISHES ### HPMC for Wall Putty & Skim Coat Compare grade requirements for water retention, application feel and consistency in putty and skim-coat formulations. [Explore HPMC for wall putty](https://landuchina.eu/products-and-solutions/hpmc-for-wall-putty-skim-coat/) LANDERCOLL® HEC · WATER-BASED COATINGS ### Hydroxyethyl Cellulose for Coatings Evaluate HEC grades for thickening, rheology control and compatibility in water-based paints and other suitable formulations. [Explore HEC for coatings](https://landuchina.eu/applications/hec-for-coatings/) **Planning to source additives for a European market?** Share the destination country, required documentation and performance targets. LANDU can discuss available grades, samples and supply arrangements; regulatory suitability and delivery details must be confirmed for each order. [Discuss your requirements](https://landuchina.eu/contact-us/) WORK WITH LANDU ## From performance target to sample evaluation. We supply functional raw materials and additive grades. The goal is to help you select and evaluate an appropriate additive—not to promise a complete ready-to-use formulation. 01 / DEFINE ### Tell us your application Share mortar type, binder system, process conditions and key performance challenges. 02 / SELECT ### Shortlist suitable grades Review product functions, technical specifications and compatibility considerations. 03 / EVALUATE ### Request samples & data Use samples and available TDS/SDS materials to support your own formulation trials. [Discuss Your Requirements](https://landuchina.eu/contact-us/) ADDITIONAL MARKETS ## Beyond construction. LANDU also provides selected cellulose ether and specialty additive grades for paints, coatings and industrial formulations. Each market requires grade-specific evaluation. [Explore all applications](https://landuchina.eu/applications/)[**Paints & Coatings**Viscosity · Application rheology](https://landuchina.eu/applications/paints-and-coatings/)[**Personal & Home Care**Thickening · Product consistency](https://landuchina.eu/cellulose-ether-personal-home-care-detergents/)[**Oil Drilling Additives**Fluid rheology · Viscosity control](https://landuchina.eu/applications/industrial-applications/oil-drilling-additives/) TECHNICAL RESOURCES ## Insights for formulation and material selection. Technical resources for formulation engineers researching additive selection, water retention, open time and polymer modification. [FORMULATION KNOWLEDGE](https://landuchina.eu/tile-adhesive-composition/) ### Tile Adhesive Composition Explore materials and typical considerations in cementitious tile adhesive systems. **Read article**[CELLULOSE ETHER](https://landuchina.eu/how-hpmc-improves-water-retention-and-open-time-in-tile-adhesive/) ### HPMC, Water Retention & Open Time Understand how cellulose ethers can influence practical mortar working properties. **Read article**[POLYMER MODIFICATION](https://landuchina.eu/rdp-tile-adhesive-freeze-thaw-test/) ### RDP & Freeze–Thaw Evaluation Learn why finished-formulation testing matters for durability requirements. **Read article** **Also useful for coating formulators:**[How to choose HEC for paint and coating thickening](https://landuchina.eu/how-to-choose-hec-for-paint/) START WITH YOUR REQUIREMENTS ## Find the right additive for your next formulation. Send your product, application, binder system, target performance and destination country. Ask about suitable grades, technical data, sample evaluation and practical supply arrangements. [Request a Sample](https://landuchina.eu/contact-us/)[Request TDS](https://landuchina.eu/contact-us/)[Send Inquiry](https://landuchina.eu/contact-us/)