Application and Industry
At LANDU, we offer a comprehensive range of high-performance specialty additives designed to enhance workability, structural stability, and longevity in modern construction materials. Our product portfolio includes Polycarboxylate Superplasticizer (PCE), Silicone Hydrophobic Powder (SHP), Gypsum Retarder, Powder Defoamer, Hydroxypropyl Starch Ether (HPS) and Polypropylene Fiber.
Engineered to meet both local and global construction standards, these functional additives effectively address key challenges such as water reduction, setting time control, defoaming, hydrophobic protection, and crack resistance.
With a strong commitment to sustainability and consistent, high-quality production, LANDU delivers reliable, eco-friendly solutions for cement, gypsum, concrete, and coating projects worldwide.
SHP Benefits:
Water Repellency
It reduces water absorption, preventing moisture frompenetrating the material.
Durability
The hydrophobic barrier created by the powder helpsprotect the concrete or cement from the effects ofmoisture, such as freeze-thaw damage, efflorescence,and corrosion of embedded steel reinforcements.
Reduced Permeability
The powder reduces the permeability of concrete orcement, making it less prone to the ingress of water,salts, and other harmful substances.
Improved Workability
It can enhance the workability of concrete mixes,making it easier to handle and place.
Gypsum Retarder Benefits:
Extended Setting Time
It effectively extends the settingtime of gypsum-based materials
Reduced Material Waste
It reduces the likelihood of materialwaste due to premature setting
Improved Workability
It enhances the workability ofgypsum compounds
Consistent Results
They help prevent issues such asuneven drying, cracking
Versatility
Suitable for a wide range ofconstruction applications
Ease of Application
These retarders are typically easyto incorporate into gypsum mixes
Powder Defoamer Benefits:
Powder Defoamer
It is highly effective at controlling and eliminating foam in mortar mixtures.
Improved Workability
This results in smoother application, better consolidation, and improved finishing of the material.
Powder Defoamer
This can lead to increased productivity.
Enhanced Bonding
Eliminating excess foam promotes better bonding of mortar to substrates, improving the overall strength and durability of the construction.
Hydroxypropyl Starch Ether (HPS) Benefits:
Maintains <10% slump loss over 2 hours, ensuring consistent quality without on-site adjustments.
Accelerates early strength for next-day demolding, increasing throughput with precise dimensions.
<0.1% chloride content and 50+ year durability, reliable for pumped concrete and congested rebar zones.
≥40% water reduction at 0.25–0.35 w/c ratio, achieving 80–120 MPa compressive strength.
Powder PCE (98%+ solids) enables high fluidity and low shrinkage for self-levelers, grouts, and repair mortars.
High deformability without segregation, filling complex forms and dense rebar without vibration.
