Cement Render and Plaster Mortar Solutions

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China Reliable Manufacturer - Cement Render Additives Solutions

As a cellulose ether manufacturer, LANDU supplies LANDERCOLL® HPMC and HEMC together with ACCURATE™ VAE RDP to help dry mix mortar manufacturers improve the performance of cement-based render and plaster systems.

Our additives support better water retention, workability, adhesion and formulation stability for various rendering applications.

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Suppliers of RDP Powder

Landercoll HPMC K100 Specification

Test Items Specification HPMC K100
Appearance white or off-white powder
Moisture content ≤6 %
Ash content ≤5 %
Methoxy content 19~24 %
Hydroxypropyl content 4~12 %
pH value 6.0~8.0
Particle size 100% pass 80 mesh
Viscosity 85,000~110,000 mPa·s (NDJ-1, 2% solution, 20℃)
Viscosity 45,000~60,000 mPa·s (Brookfield-RV, 2% solution, 20℃)

Product Recommend Table

Landercoll® Cellulose Ether

Chemical Grade Performance
HPMC K75 K100 K150 Good water retention; Good general performance;
Good workability; Wide range of applications
HEMC EM80 EM100 EM150

Accurate™ Redispersible Polymer Powder

Grade 5011N/4012N/7118E 4025N/5026/7620E 4040N/5045N/8035H
Type Rigid Semi-flexible Flexible

Cement Render Additives Typical Applications

Cement-Based Plastering

Lime-Based Rendering Systems

Exterior Protective Renders

Substrate Leveling & Finishing

Internal & External Wall Rendering

Try Our FREE Samples!

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LANDU, cellulose Ethers Supplier from China, experience our products firsthand with a FREE sample!

  • Sample Size: 200g or 400g.
  • Shipping: Fast via FedEx or DHL.
  • Service: Expert formula adjustment support.

Packaging and Size

We package additives in paper bags with plastic liners to provide extra protection. Please keep the product sealed and store it in a cool, dry place, away from moisture, direct sunlight, and sources of ignition.

25Kg Bag

Packaging: 25 kg net per polypropylene woven bag with PE inner liner.

600kg Pallet

Palletizing: 600 kg per pallet. Custom volumes & delivery upon request.

Customized Packaging

We'll promptly offer professional solutions tailored toyour needs.

Why choose LANDU?

Trusted Construction Additives manufacturer for global mortar producers.

One-Stop Sourcing, Simplified

All seven essential additives from a single supplier means fewer purchase orders, simplified logistics, and consistent quality across your entire formulation. No need to coordinate multiple vendors.

Application-Driven R&D

In-house R&D center and application laboratory means we don't just sell powders — we help you optimize your formulation. If you're developing a new self-leveling compound or UHPC mix, we work with you to fine-tune the additive package.

Manufactured in Scale

Three fully automated facilities with DCS & SIS-controlled systems ensure batch-to-batch consistency — critical when your production runs 24/7. ISO 9001, REACH, and ECOVADIS certified.

Global Experience

Trusted by partners across 60+ countries. Not a startup, not a trader — a manufacturer with proven export experience and regulatory compliance for international markets.

Cellulose Ethers Additives Supplier with Good Reputation

Landercoll® has been a trusted name in cellulose ether manufacturing for years, backed by three production bases equipped with state-of-the-art facilities. Our manufacturing process features 16 horizontal reactors and 4 vertical reactors ensuring high-capacity, consistent output, alongside a DCS (Distributed Control System) for fully automated production and an SIS (Safety Instrumented System) for real-time process safety.

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ISO 9001 and EU REACH certification

Explore LANDU’s trusted chemical products, exported to over 60 countries worldwide. Benefit from our extensiveexperience collaborating with multinational corporations and top-tier factories. Our independent R&D center andapplication laboratory innovate with 11 patents and 4 usage patents.
Count on us for high-quality products and customized formulations to meet diverse customer needs.

Flexible Payment and Sufficient Additives Supply

  • Payment Terms: Flexible options, including L/C, T/T, OA, etc.
  • Minimum Order Quantity: 1 MT
  • Packaging: 25kg/bag, 600kg/pallet
  • Annual Capacity: 7500 Tons
  • Lead Time: 7-20 working days, depending on order volume and requirements

Handling Large Volume Orders

LANDU operates three major factories with an annual production capacity of 75,000 tons and extensive storage capabilities, ensuring quick delivery of large orders. Our advanced technology and equipment, including DCS quality monitoring and an automatic packing system, allow us to handle various product specifications seamlessly.

Global Shipping and Delivery Solutions

Standard products are instock, delivered directly from the factory with pre-shipment inspection and on-time shipping via CFR, CIF, or FOB within 7-14 days, depending on location.

Landercoll Other Products

Cellulose Ether

Landercoll MHEC

NOVASTAR - PCE

FAQ

Wall putty manufacturers commonly use cellulose ethers such as HPMC, HEMC, and RDP to improve water retention, workability, adhesion, and application performance. The suitable additive depends on the putty system, raw materials, and required finishing properties.

Cellulose ether is non-toxic, biodegradable, and widely regarded as safe for use in construction materials, aligning with international environmental and safety standards.

Customer Reviews

Procurement Manager, Spain
"No more sagging. Landu MHEC keeps tiles firmly in place on walls."
Formulation Chemist, Poland
"Great water retention and workability. We switched and never looked back."
CEO, Turkey
“No clumps, dissolves fast in cold water. Just what our production line needed.”