Redispersible Polymer Powder
RDP
RDP is a spray-dried vinyl acetate-ethylene or acrylic emulsion that reverts to a polymer dispersion the moment it meets water.
RDP
Stocked gradeVAE copolymer · Solid content ≥98%
Overview
Redispersible Polymer Powder
RDP, or redispersible polymer powder, is a spray-dried vinyl acetate-ethylene (VAE) or acrylic emulsion that reverts to a polymer dispersion the moment it meets water. In a cement mortar it cures into a flexible polymer film that bridges the brittle cement matrix, raising bond strength, flexural strength and water resistance.
It is the additive that turns an ordinary cement mix into a modern tile adhesive, skim coat or waterproofing slurry.
Applications
What it is used for
Tile grout
Wall putty and skim coat
External render and textured finish
Cementitious waterproofing slurry
Repair mortar and non-shrink grout
Floor screed and industrial floor topping
Product data
Typical properties
AppearanceWhite free-flowing powder
Polymer baseVAE copolymer stocked grade
Solid content≥ 98%
Bulk density400–600 g/L
Protective colloidPolyvinyl alcohol
pH (dispersion)6.0–8.0
Refer to the current manufacturer technical data sheet for the governing specification.
Handling
Packaging & storage
25 kg bag, or repacked from 1 kg
Store cool, dry and sealed; keep below 30°C where possible.
Stack no more than 8–10 bags high. Shelf life: 12 months in original unopened packaging.
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