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Waterproofing Solutions
Waterproof Mortar Additives
LANDU Construction Chemicals
High‑Performance Polymer Additives for Cementitious Waterproofing Systems
What Is Waterproof Mortar?
Waterproof mortar is a cement‑based mixture designed to prevent moisture penetration while maintaining strong adhesion and durability. Commonly used in basements, bathrooms, water tanks, swimming pools, and exterior walls, it forms a dense layer that resists water ingress.
Προηγμένη Φόρμουλα
Unlike ordinary mortar, waterproof mortar contains functional chemical additives—such as cellulose ether (HPMC / MHEC), redispersible polymer powder (RDP), και polycarboxylate superplasticizer (PCE)—that enhance impermeability, flexibility, and long‑term strength.
Basements
Bathrooms
Water Tanks
Swimming Pools
Exterior Walls
Proven Performance
Επαγγελματικής ποιότητας
Impermeability
Blocks moisture penetration
Ευελιξία
Resists cracking & movement
Long-Term Strength
Durable protection
Why Additives Matter in Waterproof Mortar
Performance additives are crucial for achieving a truly waterproof, crack‑resistant mortar. They modify the cement matrix to improve bonding, flexibility, and surface durability.
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Cellulose Ether
- • Retains moisture for full cement hydration
- • Improves workability, viscosity, and anti‑sag performance
- • Extends open time for convenient application
- • Enhances adhesion strength and surface consistency
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RDP
Αποδιασπώμενη Πούδρα Πολυμερούς
- • Boosts tensile and bonding strength
- • Provides flexibility and crack resistance
- • Increases hydrophobicity and weather durability
- • Enhances film formation for long‑lasting waterproof layers
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PCE
Polycarboxylate Ether Superplasticizer
- • Reduces water demand without affecting workability
- • Increases mortar density and cohesion
- • Improves impermeability by minimizing capillary pores
- • Enhances flow for easier application and compaction
Πολυλειτουργικές Λύσεις
Applications of Waterproof Mortar Additives
LANDU additives are designed for modern cementitious waterproofing applications, including:
Interior and exterior waterproof plaster
Waterproof tile adhesive and tile grout systems
Cementitious waterproof coatings and membranes
Swimming pools, basements, water tanks, and reservoirs
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Swimming Pools
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Basements
Προστασία από υγρασία
Bathrooms
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Water Tanks
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Exterior Walls
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Φάσμα Προϊόντων
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Key Benefits:
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Απωθητική Ανακατανεμητική Πολυμερική Σκόνη
Flexible, Durable, and Water‑Resistant Polymer Additive
ACCURATE™ 8035H RDP enhances mortar flexibility and adhesion while imparting superior hydrophobic properties. It is widely recommended for exterior coatings, bathroom walls, and waterproof plaster formulations.
Key Benefits:
- Outstanding waterproof and crack‑resistant performance
- Improved tensile and flexural strength
- Enhanced flexibility for deformation resistance
- Excellent dispersion and film formation
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LANDU PCE 570P
High‑Range Polycarboxylate Superplasticizer
For High‑Density, Impermeable Mortar Systems
LANDU PCE 570P reduces water demand while increasing flowability and compactness. It helps create high‑density mortars with superior impermeability and cohesion.
Key Benefits:
- Increased strength at lower water‑cement ratios
- Improved self‑leveling and pumpability
- Reduced shrinkage and porosity
- Enhanced long‑term waterproofing durability
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SHP - Surface Water Repellency
Surface Water Repellency & Efflorescence Control
NOVASTAR™ SHP forms a protective hydrophobic barrier inside the mortar matrix, preventing water absorption and minimizing efflorescence.
Key Benefits:
- Excellent water repellency in wet areas
- Protection against salt formation and discoloration
- Improved freeze‑thaw resistance for outdoor use
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Πούδρα Αντιφούσκωσης
Air Elimination Additive
Air‑Free, Smooth Surface Finish
Defoamer minimizes air entrapment during mixing for a dense, uniform surface—essential for decorative waterproof mortars.
Key Benefits:
- Prevents pinholes and voids
- Enhances compressive strength
- Provides compact, aesthetic finishes
Recommended Dosage Guidelines
| Additive | Typical Dosage Range | Application Remarks |
|---|---|---|
| cURL Too many subrequests. | 0.2 – 0.5 % by cement weight | Improves water retention and open time |
| RDP 8035H | 2 – 5 % | Enhances flexibility and hydrophobicity |
| PCE 570P | 0.3 – 0.8 % | Reduces water demand for denser mortar |
| NOVASTAR SHP | 0.2 – 0.5 % | Adds surface water repellency and anti‑efflorescence |
| Αφριστικό | 0.05 – 0.2 % | Removes air bubbles for smooth finish |
Actual dosage depends on sand gradation, cement type, and performance target. For optimization, please consult LANDU's technical team.
20+
Χρόνια
75K
Τόνους/Έτος
Ηγέτης Βιομηχανίας
Why Choose LANDU Waterproof Mortar Additives
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ISO 9001 & EU REACH Certified
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Try Before You Buy
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Sample Package Includes:
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✓
Test product compatibility and waterproofing efficiency
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Optimize dosage based on your material system
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Receive guidance for max adhesion, density, and hydrophobicity
R&D Labs
State-of-the-Art
Expert Assistance
LANDU Technical Support & R&D Capabilities
Two State‑of‑the‑Art Laboratories
for formulation improvement and application testing
Professional Technical Guidance
for waterproof systems and cementitious coatings
Customized Product Development
based on local material analysis and performance benchmarks
Dedicated After‑Sales Service
to ensure seamless production integration
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Συχνές Ερωτήσεις
Waterproof Mortar Additives
Q1
Which additive improves both waterproofing and flexibility?
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Use a combination of RDP 8035H και HPMC K200 for optimal bonding and flexible waterproof films.
Q2
How do I enhance waterproof performance in harsh environments?
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Add NOVASTAR™ SHP hydrophobic powder and PCE 570P for higher density and water repellency.
Q3
What is the ideal HPMC dosage for waterproof mortar?
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Typical usage is 0.2 – 0.5 % by cement weight depending on viscosity and workability.
Q4
Can LANDU provide formulation guidance?
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Yes. Our R&D team supports full formulation development and performance optimization.
Q5
Do you offer free samples and technical data sheets?
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Absolutely. LANDU provides 200 – 600 g sample kits along with comprehensive TDS and consultation.
Q6
Are your products internationally certified?
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Yes. All LANDU additives are manufactured under ISO 9001 και ΕΕ REACH compliance standards.
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