Begin with product identity
POLYDADMAC is an organic cationic coagulant. PAC, meaning polyaluminium chloride here, is an aluminum-based inorganic coagulant. These are different product families, so a purchasing review starts with the intended material and application.
Compare the information that belongs to each grade
For POLYDADMAC, request the proposed concentration, viscosity information and test methods required by your specification. For PAC, request the product form, aluminum reporting basis, basicity and other required grade parameters.
Keep the application review separate from the price comparison
A quotation alone does not establish treatment suitability. Share the treatment objective and the information needed by your technical team, then compare proposed materials on a consistent basis.