CLUSTER 01 · CONSTRUCTIONLIVE
RDP / VAE Powder
Standard DM/DP
At a glance
CAS24937-78-8
EC / LISTPolymer, no discrete EC number
HS / TARIC3905 19 00
REACHPolymer — exempt from registration under REACH Art. 2(9); monomers covered under Art. 6(3).
PACK FORMAT25 kg paper-PE bags · palletised shrink-wrapped
What it does
Redispersible polymer powder — spray-dried vinyl acetate / ethylene copolymer that, once redispersed in water, gives cementitious mortars their flexibility, adhesion and deformability.
Also known as
Redispersible polymer powder · RDP · VAE powder · vinyl acetate / ethylene copolymer powder · spray-dried polymer powder · CAS 24937-78-8 · HS/TARIC 3905 19 00
Typical applications
- C2-grade tile adhesives (flexible)
- EIFS / ETICS adhesive and base coats
- Self-levelling floors
- Tile grouts (CG2)
- Repair mortars and waterproof slurries
Specification band
Solid content≥ 98%
Ash content10 – 14%
Tg (glass transition)−7 °C to +16 °C (grade-dependent)
Protective colloidPVOH
Bulk density400 – 550 g/L
Redispersibility≥ 95% after redispersion
Industry-typical published bands. Producer-specific values on the COA issued per shipment.
Handling & packaging
- Anti-caking treated · stack max 8 bags high
- Shelf life 12 months · protect from heat (>50 °C will cause sintering)
- Not classified as hazardous for transport
Documents on file per shipment
Per-batch COA with Tg and ash contentSDS in EU CLP formatTDS with film-formation dataREACH polymer status statement
Serica execution notes
- Pre-shipment third-party check on solid content, ash and redispersibility.
- Reefer container available for summer Mediterranean transit to prevent sintering.
- DDP to gate · grade matched to buyer's existing C2 formulation band.
- Upon request, can be verified per lot: redispersibility (EN 13055 basis), ash, moisture; mortar tensile (EN 12002) on request.
SPEC-MATCH LADDER · 3 TIERS
T1 · SPEC → SPECWritten spec match
T2 · SAMPLE → LAB DELTAReference-sample benchmark
T3 · MIX → FINISHED PARTFormulation-in-context trial
How we prove the match →
AD-HOC GRADE DEVELOPMENT
Need a variant outside these bands?
Producers develop custom grades on request — viscosity, mesh, purity band, additive package.
Brief a custom development →
Sample requests and DDP-to-gate pricing for RDP / VAE Powder are quoted per buyer — MOQs, lead-times and producer identities included.