VAE Redispersible Powder FAQ for Mortar Applications

VAE redispersible powder is a free-flowing white or yellowish powder made from an ethylene-vinyl acetate copolymer by fine-spray drying of VAE lotion. It can redisperse when it encounters water. In cement mortar, it improves bonding strength, flexibility, water resistance, wear resistance, and workability.

The powder is suited to dry-mix systems that need a polymer component in a form that is practical to handle and process. Its use should be matched to the mortar type and the property that matters most in the finished application.

Applications include tile adhesive, interior and exterior wall putty, exterior wall thermal insulation mortar, self-leveling mortar, gypsum-based mortar, plastering gypsum, repair mortar, and waterproof mortar.

In tile adhesive, the powder supports bonding between the tile and substrate, sag resistance, water resistance, and freeze-thaw resistance. Wall putty uses it for adhesion and flexibility, with crack resistance and reduced powdering. Self-leveling mortar uses it to support substrate adhesion and abrasion resistance. Gypsum-based mortar and plastering gypsum use it for flexibility, adhesion, and workability. Repair mortar and waterproof mortar use it for flexibility, waterproofing capability, and abrasion resistance.

Picture a tile adhesive line where the dry mix must hold tiles against a substrate without dripping during wall application. The relevant checks are bonding, sag resistance, water resistance, and freeze-thaw resistance. For a repair mortar, review flexibility, waterproofing capability, and abrasion resistance against the demands of the substrate.

The product parameters include appearance, packing density, non-volatile matter content, burning residue, fineness, pH, and bottom film-forming temperature:

• Appearance: white or yellowish powder with no caking
• Packing density: 550 ± 50, with a test result of 550
• Non-volatile matter content: at least 98%, with a test result of 99.1%
• Burning residue: 12 ± 2, with a test result of 12.3%
• Fineness: no more than 10.0%, with a test result of 3.0%
• pH: 5 to 9, with a test result of 7.5
• Bottom film-forming temperature: 0°C to 5°C, with a test result of 4°C

Use these values when checking whether the powder fits the target dry-mix mortar and the required handling properties. The intended application and complete formulation remain important when selecting a material.

Yes. Redispersible Polymer Powder VAE has strong compatibility with cement and HPMC in dry powder systems. This makes it suitable for mortar formulations that use both materials. Review the complete mix design and intended application when balancing adhesion, flexibility, workability, water resistance, and other required properties.

The product is packed in 25 kg bags. For container planning, the stated quantity for a 20GP container is 12 tons with pallets or 14 tons without pallets. For a 40HQ container, it is 24 tons with pallets or 28 tons without pallets.

For an order inquiry, send the product name, intended mortar application, required quantity, pallet preference, and container type. You can also review the Redispersible powder VAE product page when preparing the request.

Store the bags in a dry, well-ventilated area sheltered from direct sunlight and moisture. During transportation, protect them from rain and other weather elements. Before production, inspect the bags and confirm that the powder remains free-flowing and has no caking. Include the planned storage conditions and handling requirements in the purchasing discussion for a larger shipment.