Industries / Ground Calcium Carbonate
Aragonite for Ground Calcium Carbonate.
A natural aragonite feedstock, classified to a written specification, for functional-filler formulations.
Supplied as PL-CAL, classified to a written specification across 20–325 U.S. mesh; there is no published size band.
The functional-filler application
Mineral form, chemistry and distribution specified together.
Oolitic aragonite is an orthorhombic calcium-carbonate mineral classified to specification for plastics, coatings, sealants and other filled systems. Composition is 96.17% CaCO3, representative analysis.
Supplied as PL-CAL, untreated
Processing is mechanical only, with no chemical treatment and no additives at any stage (PDS-OA-001), and the particle distribution is classified to the formulation’s written specification.
- Mineral identity. Aragonite and calcite are calcium-carbonate polymorphs with different crystal systems. Formulation behavior must be established in the actual matrix.
- Particle engineering. D-values, top size, fines, agglomeration and classification method affect dispersion, viscosity, surface finish and processing.
- Surface area. Representative analysis gives > 1.7 m2/g.
- Chemistry and appearance. Trace chemistry, moisture, color and whiteness are set against the finished-product requirement and checked on a sample. No whiteness or color value is published for PL-CAL.
What matters to a compounder
The formulation sees the delivered powder, not the mineral name.
Particle-size targets
Define D10, D50, D90, top size, residue and agglomerate limits using the formulation and process requirement.
Moisture and handling
Set limits for moisture, bulk handling, feeding, dust collection and storage based on the production system.
Surface and compatibility
PL-CAL is supplied untreated. Where a formulation runs a surface-treated filler, that treatment is a separate downstream step and not part of AragoCor supply; evaluate resin or binder compatibility, dispersion energy and additive interactions on that basis.
Finished-property testing
Measure rheology, mechanical properties, opacity, gloss, surface finish and weathering as applicable to the formulation.
A practical path from specification to use.
Set the target
Provide the matrix, loading, particle specification, appearance targets and process constraints.
Compound
Run controlled laboratory or pilot batches against the incumbent filler using the same processing conditions.
Produce
Transfer the selected particle profile and processing conditions into the manufacturing plan.
A functional filler engineered within the complete formulation.
Particle profile, dispersion energy and additive interactions shape strength, opacity, gloss, barrier and processing performance.
Side-by-side formulation work establishes loading and processing conditions against the incumbent filler.
Discuss a particle target and formulation program.
Send the matrix, loading, target distribution, annual volume and destination for product matching and pricing.