What are Redispersible Polymer Powders?

Redispersible polymer powder (RDP) is a type of polymer powder that can be redispersed in water to form a stable dispersion or emulsion. It is a dry powder that is produced by spray-drying a polymer emulsion. RDP is used in a variety of applications, including construction, adhesives, coatings, and sealants.

RDP is composed of a variety of polymers, such as acrylics, polyvinyl acetate (PVA), polyvinyl alcohol (PVOH), and styrene-butadiene (SBR). The polymers are typically blended together to create a powder with desired properties. The powder is then spray-dried to form a dry powder. The powder can then be redispersed in water to form a stable dispersion or emulsion.

RDP is used in a variety of applications, including construction, adhesives, coatings, and sealants. In construction, RDP is used as an additive in cement-based mortars and plasters. It improves the workability, adhesion, and water resistance of the mortar or plaster. In adhesives, RDP is used to improve the adhesion of the adhesive to the substrate. In coatings, RDP is used to improve the water resistance and flexibility of the coating. In sealants, RDP is used to improve the adhesion and flexibility of the sealant.

RDP is also used in a variety of other applications, such as paper coatings, leather coatings, and textile coatings. In paper coatings, RDP is used to improve the water resistance and strength of the paper. In leather coatings, RDP is used to improve the water resistance and flexibility of the leather. In textile coatings, RDP is used to improve the water resistance and flexibility of the fabric.

RDP is a versatile material that is used in a variety of applications. It is a dry powder that can be redispersed in water to form a stable dispersion or emulsion. RDP is used in construction, adhesives, coatings, and sealants to improve the workability, adhesion, and water resistance of the product. RDP is also used in a variety of other applications, such as paper coatings, leather coatings, and textile coatings.