Repair Mortar Bond Failure: Diagnosis, Pull-Off Tests and Additive Selection
October 28, 2026
LANDU / Technical insights / Repair mortar Repair Mortar Bond
Landu delivers high-performance chemical solutions for construction, home care, food, pharma and industrial sectors, addressing your unique formulation and production challenges.
Our cellulose ethers, RDP and specialty additives optimize water retention, workability and bond strength in tile adhesive, wall putty, EIFS, gypsum plasters and self-leveling compounds, ensuring durable, crack-resistant building materials.
Our thickening and stabilizing cellulose derivatives enhance rheology, texture and suspension in home detergents and personal care formulations, improving product stability, cleaning performance and skin-friendly properties.
Our food-grade cellulose derivatives serve as thickeners, stabilizers and texture modifiers in beverages, bakery, fried foods and sauces, improving mouthfeel, extending shelf life and preventing ingredient separation.
Our pharmaceutical-grade cellulose ethers and excipients support controlled-release drug formulations, tablet coatings and vegetable capsules, ensuring consistent dissolution, bioavailability and regulatory compliance.
Our multi-purpose additives serve batteries, textiles, ceramics, oil drilling and wallpaper applications, offering tailored solutions for rheology control, binding, thickening and stability across diverse industrial processes.
| Product Category | Main Applications | Key Functions |
|---|---|---|
| HPMC/HEMC (Cellulose Ether) | Tile adhesive, putty, gypsum, EIFS | Water retention, thickening, workability |
| RDP (Redispersible Polymer Powder) | Tile adhesive, EIFS, repair mortar, gypsum | Adhesion, flexibility, crack resistance |
| PCE (Polycarboxylate Superplasticizer) | Self-leveling, high-strength mortar | Water reduction, flowability, strength improvement |
| Specialty Additives | Waterproofing, anti-sagging, setting control | Customized performance enhancement |
LANDU / Technical insights / Repair mortar Repair Mortar Bond
LANDU / Technical insights / Cement render & plaster Machine-Applied
LANDU / Technical insights / Wall putty & skim coat
Changing cement supplier? Recheck HPMC, RDP, water demand, open time and adhesion with a practical trial matrix before approving your tile adhesive.
Diagnose bleeding and segregation in cement-based self-levelling mortar. Compare water, PCE and cellulose ether in controlled trials for flow and stability.
Discover how HPMC viscosity influences self-leveling mortar flow retention, leveling behavior, and surface finish. Learn to compare grades and evaluate PCE compatibility.
If you are working on a concrete floor that needs leveling, explore Self-leveling Compounds. For wall renovation and surface smoothing solutions, check Wall Putty & Skim Coat. External wall insulation projects can refer to our professional ETICS / EIFS system solutions.