Name: UV-Curable Epoxy Acrylate Adhesive UEA-80
Brand: Coatingsink
SKU: uv-epoxy-acrylate-adhesive
Availability: InStock

Question 1

What UV dose is required for full cure of UEA-80?

Accepted Answer

UEA-80 achieves full cure at 800–1,200 mJ/cm² at 365 nm using a medium-pressure mercury lamp or 365 nm UV LED array. Bondlines exceeding 2 mm may require a dual-cure approach with a secondary amine co-initiator to ensure through-cure in shadowed areas.

Question 2

Can UEA-80 be blended with urethane acrylate oligomers or reactive diluents?

Accepted Answer

Yes. UEA-80 is fully compatible with aliphatic urethane acrylates and reactive diluents such as IBOA, HDDA, and TPGDA. Blending with flexible oligomers reduces Shore D hardness and improves impact peel strength; a typical formulation uses 30–60% UEA-80 alongside a co-oligomer and 3–5% photoinitiator package.

Question 3

Which substrates does UEA-80 bond without a primer?

Accepted Answer

UEA-80 provides excellent adhesion to borosilicate glass, polycarbonate, and mild steel after solvent cleaning. Adhesion to PTFE, polyethylene, and powder-coated surfaces is poor without primer; a silane coupling agent (e.g., γ-GPS at 0.5%) applied to the substrate significantly improves peel strength on glass and metal.

Active Content	100%
Cure Wavelength	365 nm
Shore D Hardness	82–88
Viscosity (25°C)	8,000–15,000 mPa·s
Tensile Strength (cured)	>30 MPa

UV-Curable Epoxy Acrylate Adhesive UEA-80

Specifications

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