Name: Nano Clay Anti-Sag Agent NC-200
Brand: Coatingsink
SKU: nano-clay-antisag-nc200
Availability: InStock

Question 1

How is NC-200 incorporated into waterborne coatings without agglomeration?

Accepted Answer

Pre-disperse NC-200 in deionized water at 5–10% solids using a high-shear disperser (2,000–4,000 rpm, 10–15 min) to form a smooth gel paste, then let down into the millbase under moderate agitation. Direct high-shear addition to the grind stage also works. No organic solvent or pre-activation step is required.

Question 2

What distinguishes NC-200 from fumed silica or hectorite-based thickeners?

Accepted Answer

NC-200's platelet aspect ratio (100–300:1) builds a stronger physical network at lower dosage (0.3–1.5 wt%) compared to fumed silica (0.5–3 wt%), giving faster viscosity recovery after shear with less impact on gloss. Unlike hectorite clays it is effective in both solventborne and waterborne systems without solvent activation.

Question 3

What dosage prevents sagging in a high-build 2K epoxy anti-corrosion primer?

Accepted Answer

For a 2K epoxy primer applied at 150–250 µm WFT on vertical steel, 0.6–1.2 wt% NC-200 on total formulation weight is typically sufficient. Combine with a polyamide or polyurea thixotrope at 0.3–0.5 wt% for synergistic effect when faster amine cure reduces the available anti-sag window.

Aspect Ratio	100:1–300:1
Bulk Density	0.20–0.35 g/cm³
BET Surface Area	≥200 m²/g
Moisture Content	≤3%
d001 Basal Spacing (XRD)	≥18 Å

Nano Clay Anti-Sag Agent NC-200

Specifications

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