Name: Acrylic-Modified Epoxy Adhesive AME-50
Brand: Coatingsink
SKU: acrylic-modified-epoxy-adhesive
Availability: InStock

Question 1

What advantage does acrylic modification give AME-50 over standard bisphenol-A epoxy adhesives?

Accepted Answer

The acrylic modification introduces a rubber-toughening network that absorbs impact energy and arrests crack propagation, delivering 18% elongation at break alongside 35 MPa tensile strength — a combination unachievable in unmodified epoxy systems where high modulus typically comes at the cost of brittleness.

Question 2

Can AME-50 be cured thermally when UV access to the bond line is restricted?

Accepted Answer

Yes. AME-50 supports dual cure: UV at 365 nm (≥1,000 mW/cm²) for exposed areas, and thermal cure at 120°C for 30 minutes for shadowed or thick-section bonds. Both pathways reach equivalent final mechanical properties, making it suitable for complex composite or overmolded assemblies.

Question 3

What surface preparation is recommended for aluminum and steel substrates?

Accepted Answer

Abrasive blasting to Sa 2.5 or mechanical sanding to P120 grit, followed by solvent degreasing with MEK or IPA, is the baseline. Applying a silane coupling agent primer (e.g., γ-GPS at 1 wt% in ethanol, air-dried 15 min) can improve bond strength on stainless steel by 15–20% by providing covalent anchoring between the oxide layer and the adhesive matrix.

Cure Condition	UV 365 nm or 120°C / 30 min
Pot Life (25°C)	45 min
Tensile Strength	35 MPa
Viscosity (25°C)	42,000 mPa·s
Elongation at Break	18%

Acrylic-Modified Epoxy Adhesive AME-50

Specifications

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