Plan a trial for your application
Rigid PVC extrusion
Record fusion time, torque and finished surface gloss.
Foamed profiles
In the same foaming system, compare melt strength, density and cell structure.
Purchase specifications and incoming inspection
Review these properties for the intended application grade. Example figures refer to the cited grade or source. Confirm the offered specification, packaging and lead time in the quotation. Arkema Plastistrength 576 · PVC processing aid grade ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Powder particle size | µm or % sieve residue | Arkema Plastistrength 576 example: 40 mesh sieve residue ≤2% | Distinguish sieve residue from the fraction passing and confirm the sieve standard. |
| Apparent density | g/cm³ | Arkema Plastistrength 576 grade example: 0.45 g/cm³. | Use the same loose-fill method to verify the published apparent density. |
| Fusion behavior | Time or torque profile | Confirm against the offered grade and purchase specification | Keep PVC grade, lubricant package and test temperature constant. |
When approving a sample, record the grade, methods, limits and specification revision. On receipt, match the packing lot number to the lot-specific COA and record the measured values and release decision.
From samples to commercial delivery
Packaging and receiving
Confirm micronised powder packaging, liner and lot and verify compatibility with dispensing and dispersion equipment.
Storage and handling
If agglomeration develops in storage, retest mixing, dispersion and fusion behaviour against a retained control.
Sample and order lead times
State the finished part, machine trial quantity and routine order size. Match trial and commercial grades and agree MOQ, load unit, lead-time start and arrival.
Questions from the plant
Does “acrylic additive” identify both impact and processing functions?
Request the primary function. Use the relevant tensile, impact or processing trial.
Can fusion times from different formulations be compared directly?
Align temperature, stabiliser, lubricant and PVC resin first.
Report a delivery or batch issue
Include the order number, lot number from the package, label photos and inspection records for the affected lot. When retesting, check Powder particle size, Apparent density, Fusion behavior.
Request documents for your application
TDS · Technical data sheet
For grade selection and sample approval, specify the grade and revision required.
SDS · Safety data sheet
Specify the country or region of use and the required language.
COA · Certificate of analysis
Request a sample COA during supplier review. For incoming inspection, provide the actual lot number.