Modern tile adhesive formulations require more than cement and fillers. Manufacturers must balance water retention, anti-slip performance, open time and adhesion strength to meet the demands of ceramic tiles, porcelain tiles and large-format installations. Cellulose ethers such as HPMC and HEMC, together with redispersible polymer powder (RDP), are essential additives for improving tile adhesive performance and application stability.
Benefits of Tile Adhesive Additives:
Excellent open time and sag resistance
High wet strength values
Increased cohesive force
Increased plastic behaviour and flexibility
| Additive Type | Main Benefits | Best For |
|---|---|---|
| HPMC | Water retention, anti-sag, workability | General-purpose tile adhesive formulas |
| HEMC | Enhanced bonding, flexibility, reduced shrinkage | Premium tile adhesive formulas |
| RDP | Flexibility, adhesion strength, thermal resistance | High-performance tile adhesive formulas |
| HPS | Quick thickening, improved workability, anti-slip | Fast-setting tile adhesive formulas |
Get a free sample of any additive to test in your tile adhesive formula!
| Field Of Application | Product and grade – HPMC | Product and grade – HEMC | Viscosity (Brookfield RV 2%) | Performance |
|---|---|---|---|---|
| C0 | K200 K150 K100 | EM200 EM150 EM100 | 65,000-80,000 55,000-65,000 45,000-60,000 | Good water retention; Good general performance; Good workability; Wide range of applications |
| C1 | K100H K100HT K75H K40H | EM100H EM100HT EM80H EM40H | 45,000-60,000 45,000-60,000 35,000-45,000 20,000-24,000 | High water retention; Enhanced open time; Good slip resistance |
| C2 | K40HT K20HT K10HT | EM40HT EM20HT EM10HT | 20,000-24,000 10,000-18,000 4,000-8,000 | High water retention; Excellent open time; Excellent slip resistance |
Accurate™ Redispersible Polymer Powder
| Type | Rigid | Semi-flexible | Flexible |
|---|---|---|---|
| Grade | 4012N/5011N/7118E | 4025N/7620E/9028E | 5045N/9055E |
C0, C1, and C2 represent distinct application scenarios (typically corresponding to various construction material systems, such as tile adhesives, putties, and plastering mortars); their performance characteristics vary depending on viscosity and specific grade.
HPMC (Hydroxypropyl Methylcellulose) and HEMC (Hydroxyethyl Methylcellulose) are two leading types of cellulose ethers, each offering specific advantages within different formulation systems.
Open Time:
Landercoll® extends the open time of tile adhesives and enhances water retention in two key ways:
Slip Resistance:
When installing large-format tiles, marble, or low-absorption vitrified tiles on vertical surfaces, displacement can occur due to gravity. Specially modified Landercoll® cellulose ether enhances the anti-slip performance of tile adhesives, preventing tile slippage.
Typical Applications：
The right additives in yourtile adhesive formula make all these properties possible. Therefore, selecting the proper ingredients is crucial for manufacturing reliable products.
The Water Retention Expert
LANDERCOLL HPMC improves your tile adhesive formula by keeping water in the mix longer. This additive creates the perfect environment for cement hydration. As a result, your adhesive develops maximum strength. Also, HPMC extends open time, giving installers more flexibility during application.
How HPMC enhances your tile adhesive formula:
Adding just 0.2-0.3% HPMC to your tile adhesive formula can increase water retention by up to 98%, dramatically improving bond strength.” – LANDU Research Center
The Flexibility Provider
LANDERCOLL HEMC takes your tile adhesive formula to the next level. This premium additive combines excellent water retention with enhanced bonding strength. Furthermore, it creates a smoother, more workable mixture that spreads easily. Most importantly, HEMC reduces cracking and improves long-term durability.
Benefits of HEMC in your tile adhesive formula:
Adding 3-5% RDP to your tile adhesive formula can increase tensile adhesion strength by up to 300% compared to standard cement-based adhesives. This makes it perfect for large-format tiles and outdoor applications.
Best for: Projects needing movement tolerance
LANDERCOLL HEMC takes your tile adhesive formula to the next level. This premium additive combines excellent water retention with enhanced bonding strength. Furthermore, it creates a smoother, more workable mixture that spreads easily. Most importantly, HEMC reduces cracking and improves long-term durability.
Benefits of HEMC in your tile adhesive formula:
The Workability Improver
NOVASTAR HPS makes your tile adhesive formula more user-friendly. This rapid thickener creates the perfect consistency instantly. Therefore, installers can apply your product more easily. Also, HPS prevents sagging on vertical surfaces while maintaining excellent water retention. As a result, tiles stay in place during installation.
How HPS transforms your tile adhesive formula:
We offer free samples of all additives for your tile adhesive formula. You can test HPMC, HEMC, RDP, and HPS in your laboratory without any cost. Moreover, we cover all shipping expenses worldwide. If our sample doesn’t meet your needs, we’ll adjust the formula at no charge.
If you’re not satisfied with the sample, our R&D team will refine the product to your exact specification – completely free of charge!
With LANDU, you get accurate products, reliable quality, and outstanding service. Simply send us a message, and we’ll take care of everything!
Our team helps you optimize your tile adhesive formula for specific applications. We analyze your current product and suggest improvements. Furthermore, we provide custom blends to meet your unique requirements. As a result, you get a formula that outperforms competitors while meeting your cost targets.
