Novastar™ HPS Supplier

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NOVASTAR™ Additives
Hydroxypropyl Starch Ether HPS Supplier

Selecting the right starch ether is critical for improving the workability and sag resistance of cement-based dry mortar systems. Novastar™ Hydroxypropyl Starch Ether is developed for tile adhesives, gypsum-based products and other construction applications where formulation stability and application performance are required.

Buy NOVASTAR™ Additives HPS

Item Specification
Appearance Fine white powder
pH 8.5-11
Solubility Dissolves in cold water
Fineness <350 microns
Viscosity 400-12000 mPa.s (5% water solution)
Moisture ≤5%
Hydroxypropyl substitution degree 0.2-1.2

Typical Applications

Gypsum- Based Mortars

Tile Adhesives

Dry-Mix Mortars

Wall Putty & Plaster Renders

Key Benefits

1. Enhances water retention,reducing premature drying.
2. Reduces segregation and improves consistency.
3. Improves workability and smoothness of the mix.
4. Increases open time forbetter application efficiency.
5. Enhances adhesion & cohesionof construction materials.

Try Our FREE Samples!

landu-laboratory

LANDU, HPS Supplier from China, experience our products firsthand with a FREE sample!

  • Sample Size: 200g or 400g.
  • Shipping: Fast via FedEx or DHL.
  • Service: Expert formula adjustment support.

Packaging and Size

We package additives in paper bags with plastic liners to provide extra protection. Please keep the product sealed and store it in a cool, dry place, away from moisture, direct sunlight, and sources of ignition.

25Kg Bag

Packaging: 25 kg net per polypropylene woven bag with PE inner liner.

600kg Pallet

Palletizing: 600 kg per pallet. Custom volumes & delivery upon request.

Customized Packaging

We'll promptly offer professional solutions tailored toyour needs.

Why choose LANDU?

Trusted NOVASTAR™ Additives manufacturer for global mortar producers.

One-Stop Sourcing, Simplified

All seven essential additives from a single supplier means fewer purchase orders, simplified logistics, and consistent quality across your entire formulation. No need to coordinate multiple vendors.

Application-Driven R&D

In-house R&D center and application laboratory means we don't just sell powders — we help you optimize your formulation. If you're developing a new self-leveling compound or UHPC mix, we work with you to fine-tune the additive package.

Manufactured in Scale

Three fully automated facilities with DCS & SIS-controlled systems ensure batch-to-batch consistency — critical when your production runs 24/7. ISO 9001, REACH, and ECOVADIS certified.

Global Experience

Trusted by partners across 60+ countries. Not a startup, not a trader — a manufacturer with proven export experience and regulatory compliance for international markets.

NOVASTAR™ Additives Supplier with Good Reputation

Our manufacturing process features 16 horizontal reactors and 4 vertical reactors, ensuring high-capacity, consistent output, alongside a DCS (Distributed Control System) for fully automated production and an SIS (Safety Instrumented System) for real-time process safety.

LANDU-Wet-Abrasion-Scrub-Tester-Equipment

ISO 9001 and EU REACH certification

Explore LANDU’s trusted chemical products, exported to over 60 countries worldwide. Benefit from our extensiveexperience collaborating with multinational corporations and top-tier factories. Our independent R&D center andapplication laboratory innovate with 11 patents and 4 usage patents.
Count on us for high-quality products and customized formulations to meet diverse customer needs.

Flexible Payment and Sufficient Additives Supply

  • Payment Terms: Flexible options, including L/C, T/T, OA, etc.
  • Minimum Order Quantity: 1 MT
  • Packaging: 25kg/bag, 600kg/pallet
  • Annual Capacity: 7500 Tons
  • Lead Time: 7-20 working days, depending on order volume and requirements

Handling Large Volume Orders

LANDU operates three major factories with an annual production capacity of 75,000 tons and extensive storage capabilities, ensuring quick delivery of large orders. Our advanced technology and equipment, including DCS quality monitoring and an automatic packing system, allow us to handle various product specifications seamlessly.

Global Shipping and Delivery Solutions

Standard products are instock, delivered directly from thefactory with pre-shipmentinspection and on-time shipping via CFR, CIF, or FOB within 7-14 days,depending on location.

Landercoll Other Products

Cellulose Ether

Landercoll MHEC

NOVASTAR - PCE

FAQ

  • MOQ: We accept a minimum order quantity of 1 ton. Smaller trial orders negotiable.

  • Lead time: 5 days for standard orders, 10 days for orders over 50 tons.

Landercoll® is produced under ISO 9001 certified systems and fully complies with EU REACH regulations. CoA provided with every batch.

We operate three production bases with 16 horizontal reactors & 4 vertical reactors plus a DCS automated control system for full process monitoring. Consistent quality, every batch.

Yes. 500g–1kg samples are free (shipping cost may apply for express delivery). Contact us for your specific application.

Landu is a direct manufacturer. Founded in 2008, we operate 3 production bases with DCS automated control systems and ISO 9001 & EU REACH certifications.

We provide TDS, SDS and COA documents to support product evaluation and quality control.

Customer Reviews

Procurement Manager, Spain
"No more sagging. Landu MHEC keeps tiles firmly in place on walls."
Formulation Chemist, Poland
"Great water retention and workability. We switched and never looked back."
CEO, Turkey
“No clumps, dissolves fast in cold water. Just what our production line needed.”