Name: Low-MW Polyacrylate Dispersant PAD-30
Brand: Coatingsink
SKU: polyacrylate-dispersant-low-mw-pad
Availability: InStock

Question 1

What makes PAD-30 suitable for high-PVC architectural paints?

Accepted Answer

PAD-30's low molecular weight (~3,000 g/mol) sodium polyacrylate backbone provides strong electrostatic repulsion between inorganic pigment and filler particles. This keeps PVC loadings above 60% processable without excessive viscosity build, allowing higher binder savings at equivalent hiding power.

Question 2

Can PAD-30 be used with organic pigments or only inorganic fillers?

Accepted Answer

PAD-30 performs best on inorganic pigments (TiO₂, CaCO₃, kaolin, talc) via electrostatic stabilization. For organic pigments with hydrophobic surfaces, a steric hyperdispersant is more effective. PAD-30 may be combined with a wetting agent for mixed pigment systems.

Question 3

What is the recommended addition point and dosage in a typical grind paste?

Accepted Answer

Add PAD-30 to the water phase before pigment let-down, at 0.2–0.5% on total pigment weight for standard extenders and up to 0.8% for fine-particle TiO₂. Overdosing can cause re-agglomeration in high-electrolyte systems, so jar stability tests at the target formulation salt level are advised.

pH (10% aq.)	8.5–9.5
Active Content	40%
Density (25°C)	1.08 g/ml
Molecular Weight	~3,000 g/mol
Recommended Dosage	0.2–0.8% on pigment weight

Low-MW Polyacrylate Dispersant PAD-30

Specifications

FAQ

Interested in Low-MW Polyacrylate Dispersant PAD-30?