Do not treat 100 minus a redispersible polymer powder’s ash percentage as a proven active-polymer content. The ash test and the complete composition are different pieces of information.
Read the test conditions and product description
WACKER’s VINNAPAS 5044 N (GER) technical sheet lists ash at a stated ignition condition, solids and a protective-colloid system separately. This supports keeping those fields distinct. Its values belong to that grade and must not be transferred to an ENVO offer.
A loss during ignition can involve more than the particular binder fraction the buyer wants to compare. Conversely, a residue measurement does not by itself identify every constituent. Request a justified composition statement if a commercial calculation depends on a named polymer fraction; do not reconstruct it from a convenient single test.
| Evidence | Supported interpretation |
|---|---|
| Ash result | Residue under the stated method |
| Composition statement | Defined constituents and reporting basis |
| Application trial | Performance at the qualified addition in the actual mortar |
Avoid a false price-per-active comparison
If the active fraction is unverified, dividing price by 100 minus ash produces a precise-looking but unsupported result. Compare offers against the defined grade requirements and measured application addition instead. Any performance difference still needs the mortar’s actual testing and acceptance criteria.
Send ENVO the current RDP grade, intended system and evidence required for the purchase calculation. Request actual documents and a sample. A lower ash number may be relevant to a specification, but it is not automatically proof of a lower cost, greater flexibility or a proportionally reduced dose.
Related decisions
- RDP MFFT, Tg and service temperature: keep the three meanings separate
- RDP storage and caking: evaluate usable powder without erasing the arrival evidence
Review VAE redispersible polymer powder product identity and purchasing requirements. For the decision above, send ENVO your application, acceptance criteria, quantity and destination. Confirm the offered grade and available documents before ordering.
Technical references support the stated material or test method. Confirm the offered grade and current acceptance criteria for your application. Quality and document guidance
Share your application, target properties and test conditions to discuss the next step.
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