Vinyl Acetate Ethylene Redispersible Powder

Vinyl Acetate Ethylene Redispersible Powder

Vinyl Acetate Ethylene (VAE) Redispersible Powder (RDP) is an essential component in modern construction materials.

Looking for more information on powder rdp professional factory? Don't hesitate to contact us.

Product Overview

Description

Redispersible polymer powder (RDP) is extensively used in combination with cellulose ether products to enhance the properties of building mortar. It's widely acknowledged in the industry for its superior attributes.

Product Details

Typically, Kemox Redispersible polymer powder (RDP) is a free-flowing, white powder formed through spray-drying a water-based vinyl acetate-ethylene (VAE) copolymer dispersion. Utilizing polyvinyl alcohol as a protective colloid, this powder offers unsurpassed ease in transportation, storage, and handling. The benefits it brings to cement and gypsum formulations in construction are enormous, significantly improving their properties.

Key Features

Combining the adhesive strength of vinyl acetate with the flexibility of ethylene, Kemox polymer powders quickly redisperse into an emulsion upon contact with water. This emulsion retains the characteristics of the original dispersion, forming a polymer film post-water evaporation. This film showcases qualities like high bonding capability, exceptional flexibility, remarkable heat resistance, and great adhesion to various substrates.

Application in Wall Putty: Handling Hot and Humid Weather

With summer approaching, construction projects confronting high temperatures might face challenges, especially with wall putty application. Optimal conditions for wall putty application include temperatures between 5-35℃, air humidity below 85%, and substrate humidity below 10%. But what issues arise in hot summer conditions and how can they be mitigated?

Common Issues

1. High Temperature Exposure

The rapid drying of putty at elevated temperatures, along with swift water absorption by the substrate, can accelerate the evaporation rate of wall putty moisture. This may result in undesirable effects like rolling skin, powdering, or cracking of the finished surface.

2. Rain and Humidity

Persistent wet conditions, coupled with high air humidity or substrate moisture levels, can delay the drying process of putty. Applying successive layers without ensuring complete drying may lead to bubbling and peeling. High humidity can also expedite the curing of water-resistant putty, reducing the sanding time.

Want more insights into construction grade wall putty raw material? Reach out for a professional consultation today.

Solutions for Hot and Humid Weather

1. Proper Base Layer Preparation

Ensure the base layer doesn't crack, powder, or have poor adhesion. Clean the wall surface thoroughly, eliminating dust, mildew, and salt deposits. The wall facade should be vertical and squared without any missing edges.

2. Precautionary Steps

Using an interface agent to seal the substrate in hot and dry conditions can help. Alternatively, wetting the wall two hours before applying putty ensures the putty layer dries completely. Additionally, avoid construction under direct sunlight or extremely high temperatures.

Summary

In high-temperature conditions, superior quality putty minimizes the issues discussed. Additives in putty determine its performance. As a notable construction chemical manufacturer, Kemox provides high-grade Hydroxypropyl Methylcellulose (HPMC) under the 'KP-100K' grade for wall putty, formulated to withstand extreme weather conditions. For more information, product datasheets, and free samples, contact us or consult with our technical experts.

China Professional Factory for Methocel in Pharmaceuticals

For reliable hpmc manufacturers in china, our experienced sales team can guide you to the right products suiting your needs. Contact us to discuss your requirements.