Name: Epoxy Hardener AW-106 / HV-953U (Polyamidoamine)
Brand: Coatingsink
SKU: two-component-epoxy-hardener-aw106
Availability: InStock

Question 1

What is the advantage of polyamidoamine hardeners over polyamine hardeners for epoxy coatings?

Accepted Answer

Polyamidoamine hardeners (like AW-106) offer significantly lower skin sensitization risk, longer pot life, better flexibility in cured films, and superior resistance to amine blush (carbamation) in humid conditions compared to low-molecular-weight polyamines (DETA, TETA). They are the preferred hardener type for marine anti-corrosion epoxy coatings applied under outdoor conditions.

Question 2

Can AW-106 cure epoxy at low temperatures?

Accepted Answer

Standard polyamidoamine hardeners cure best above 15°C. Below 10°C, cure may be incomplete and film properties (hardness, chemical resistance) are compromised. For low-temperature applications (5–15°C), a polyamine adduct accelerator or Mannich base hardener can be blended with AW-106 at 10–20% to accelerate cure kinetics.

Amine Value	340–380 mgKOH/g
Color (Gardner)	≤8
Viscosity (25°C)	2000–4000 mPa·s
Gel Time (25°C + E-51)	25–40 min
Mixing Ratio (w/w, with E-51)	20–25 phr

Epoxy Hardener AW-106 / HV-953U (Polyamidoamine)

Specifications

FAQ

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