Plan a trial for your application
Rubber activation systems
Fix zinc oxide and curatives. Compare scorch, cure speed and blooming.
Lubrication in plastics processing
Observe fusion, surface exudation and finished-part appearance.
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. KLK OLEO · Oleochemicals for polymers ↗
| Property | Unit | Published or agreed specification | Test conditions and checks |
|---|---|---|---|
| Fatty acid composition | % by mass or GC area % | Confirm against the offered grade and purchase specification | Report C18 and C16 fractions and the reporting basis. |
| Acid value | mg KOH/g | Confirm against the offered grade and purchase specification | Use the same method and distinguish free fatty acids from soap salts. |
| Solidification or dropping point | °C | Confirm against the offered grade and purchase specification | Specify the method used. Different thermal properties are not interchangeable. |
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
List beads, flakes and powder separately. Check liner, heat-related softening and unit net weight.
Storage and handling
Request raw material origin and batch tests, particularly when plant origin is required.
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 commercial stearic acid mean pure C18?
Request the fatty-acid composition profile and grade description rather than assuming chemical purity.
Why can grades of equal acid value lubricate differently?
Compare chain-length distribution, melting behaviour and exudation in the actual formulation.
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 Fatty acid composition, Acid value, Solidification or dropping point.
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.