Waterborne Polyamine Epoxy Hardener (Adduct Grade)

In Stock

MOQ

200 kg

Lead Time

7–14 days

Packaging

200 kg plastic-lined drums

Specifications

pH (10% aq.)10.0–11.5
Solid Content65% in water
Viscosity (25°C)500–2000 mPa·s
Minimum Application Temperature5°C
Pot Life (with WB DGEBA, 25°C)30–60 min
Amine Hydrogen Equivalent Weight (AHEW)120–145 g/eq

FAQ

Mix ratio (by weight) = (AHEW of hardener) / (EEW of epoxy). Example: with WB epoxy dispersion EEW 360 g/eq (30% solids) and this hardener AHEW 130 g/eq (65% solids), volume ratio ≈ 4:1 epoxy:hardener (adjust for density). Always pre-test mix ratio by DSC gel-point measurement. Incorrect ratio (>15% from stoichiometric) leads to either uncured soft film (hardener excess) or brittle over-crosslinked film (epoxy excess) — both significantly reduce anti-corrosion performance.

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