Barium Sulphate BaSO4 Barite Powder for Solvent-Paint and Rubber-Filler Evaluation, D50 8 Microns

This barium sulphate barite powder has an 8 micron D50 criterion and a paint application direction. A solvent-paint or rubber-filler enquiry should first confirm the offered chemical assay and the material specification required by the actual formulation.

Use D50 without assuming the whole distribution

The 8 micron median describes one point on the particle-size distribution. Request the actual measured curve and method where the paint process needs them, and keep a largest-crystal entry separate from the powder distribution rather than using it as an interchangeable size limit.

Request a confirmed assay and optical grade

Obtain a current analysis giving the committed BaSO4 assay and relevant impurity limits for the offered powder. Confirm the actual whiteness grade and optical reference as separate criteria, then compare the material against the paint specification rather than assuming that a chemical percentage determines the finished film's appearance.

Mineral analysis

CaO is 0.4%, Fe2O3 is 0.06% and SiO2 is 1%; confirm the analysis for the proposed grade.

pH criterion

The 7±0.5 range needs an agreed preparation and measurement method.

Use-specific documents

Request current technical and safety information and applicable RoHS evidence where the project requires it.

Qualify each filler role in its own matrix

For solvent paint, define the binder and the processing and optical tests that will decide acceptance. A rubber or masterbatch project needs its own polymer, material role and trial criteria, without assuming a ready-made masterbatch, carrier resin or compatibility result from the filler wording.

For this sulfate powder, let a confirmed assay, the measured 8 micron median and a relevant formulation trial establish the actual material decision. Any required compliance statement should be supported by an applicable current document for the offered grade.