
Functional Additives for Construction Formulations
Cellulose ethers, redispersible polymer powders and specialty additives for dry-mix mortar manufacturers, formulation engineers and distributors. Explore our materials and find a suitable starting point for your formulation evaluation.
Find the Material You Need
Start with a product family, then explore the function, application fit and technical details of individual grades.
HPMC
Hydroxypropyl methyl cellulose for water retention, workability and rheology control in mortar systems.
Explore HPMC →
HEMC / MHEC
Cellulose ether grades for workability and water-retention management across varied application conditions.
Explore HEMC →
RDP
Redispersible polymer powders evaluated for polymer modification, adhesion and flexibility requirements.
Explore RDP →
Specialty Additives
PCE, defoamers, retarders, starch ethers and complementary functional materials for construction mixes.
Explore Additives →Explore Additives by Application
Different mortar systems place different demands on open time, sag resistance, flexibility, flow and water retention.

Tile Adhesive
Consider water retention, open time, slip resistance and polymer modification in tile-fixing mortars.
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Wall Putty & Skim Coat
Evaluate application smoothness, consistency, water retention and powder additive compatibility.
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Self-Leveling
Balance flowability and suspension stability while evaluating suitable rheology-control additives.
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Plaster & Render
Review workability, water demand and sag control across hand-applied and machine-applied mixes.
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Waterproof Mortar
Explore additive options relevant to workability, substrate adhesion and water ingress resistance.
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EIFS / ETICS
Consider additives for insulation adhesive mortars and base coats in exterior insulation applications.
Explore Application →LANDU supplies raw materials and functional additives for manufacturers. We do not supply complete mortar formulations, finished building systems or project-specific system certifications.

Manufacturing and Technical Support You Can Explore
For a new supplier relationship, clear technical information and evidence of manufacturing capability matter more than broad promises. Learn about LANDU and request the information relevant to your evaluation.
- Manufacturing and company background for supplier evaluation
- Technical data and product grade information on request
- Sample discussions based on your application requirements
A Clear Path from Selection to Evaluation
Tell us what you are making and which performance factors matter most. LANDU can help identify product information for your next evaluation step.
Share Your Application
Provide the mortar or material type, binder system and the performance issue you want to investigate.
Review Technical Data
Compare available grades and request relevant technical information, including a TDS where available.
Evaluate a Sample
Request a suitable sample for your own laboratory trials and assess compatibility with your formulation.
Final grade selection and finished-product performance should be verified in the customer's formulation and test conditions.
Request a SampleResources for Better Material Decisions
Practical reading for material selection, supplier assessment and formulation troubleshooting.
HPMC vs HEMC for Tile Adhesive in Hot Weather
Key distinctions to consider when comparing cellulose ether options under elevated temperatures.
Read Article →How Buyers Should Read a Cellulose Ether COA
Understand why test methods and specification context matter when evaluating cellulose ether quality.
Read Article →How to Choose HPMC for Tile Adhesive
Connect product selection to practical application targets in cementitious tile adhesive systems.
Read Article →Looking for the Right Additive Grade?
Share your target application and technical requirements. Start with product information, a sample request or a conversation with our team.
