What Is RDP (Redispersible Polymer Powder) and Why Does It Matter in Dry Mix Mortar?

What Is RDP (Redispersible Polymer Powder) and Why Does It Matter in Dry Mix Mortar?

Introductions:

Redispersible polymer powder is formed by spraying and drying the emulsion of a specific model. It plays important role in dry mix mortar products formulation.

In the market,

There are mainly 3 kinds of redispersible polymer powder based on different types of emulsion, Including: VAE / Va-Veova / Acrylic emulsion based redispersible polymer powder.

Jinan Maissen New Material Co.,Ltd is mainly focus on the VAE redispersible polymer powder to provide high quality RDP to meet different requirements from clients.

Redispersible polymer powder producing process:

VAE emulsion stabilized with protective colloid(PVA)=>

Spray drying=> Mix with Anti-Caking agent(CaCo₃)

Main Functions of redispersible polymer powder:

-Increase the Bonding strength of dry mix mortar

-Increase the Flexibility of dry mix mortar

-Water proofing

-Work ability

-Anti - cracking / Shrinking

The applications of redispersible polymer powder:

The Physical and chemical indicators and Compatibility of redispersible polymer powder:

-Ash content: 

According to standard JC/T 2189-2024 ,Ash content of redispersible polymer powder is N%±2. Global famous brands are at 11-13%, for example Wacker R1551Z etc. (Test method according to GB/T 7531-2008).

-TG Temperature of Glass transition):

This is related with the performance of redispersible polymer powder. High TG Provide better bonding strength and Low TG products provide better flexibility.

-Storage time: Recommend to use the products within 6 months. High quality VAE based redispersible polymer powder have risk of caking. It should avoid moisture, high temperature and high pressure. Recommend to store it under 5℃ - 30℃.

-Compatibility: Excellent compatibility, compatible with other additives in dry mix mortar products.

Maissen RDP series redispersible polymer powder:

-Good control of the moisture,Performance is stable and low caking problem risk. Production line is located at GanSu province(the north-west of China, whether is cold and dry, it is more easy to control the moisture in the whole production process and final products.)

-Stable supplying

-Tech support to provide various grades for different applications to meet clients’ requirements.

FAQ:

1. Is the sample for testing available?

200g free samples is available for your lab testing.

2. What is redispersible polymer powder used for?

Redispersible polymer powder (RDP /RPP) is used in dry mix mortar industry as an additive in wall putty/plaster, tile adhesive, grouts，EIFS mortar and self leveling compounds.

3. How to choose the right specification of redispersible polymer powder?

There are different grades of redispersible polymer powder. Their performance is also different in the formulation. According to the different performance, it is mainly divided into rigid grade and flexible grade.

If you wanna know more suggestions on specification, please contact with us for more information.

4. Is redispersible polymer powder environmentally friendly?

Yes it is. Redispersible polymer powder offering low VOC content and reduce enironmental impact.