Technical data sheet for Resinlab EP1305 Black epoxy adhesive with properties, mix ratio, cure time and handling instructions.
The EP1305 Black is a highly toughened urethane‑modified epoxy designed for bonding PVC, metals, ceramics and other difficult substrates. It is supplied in side‑by‑side cartridges with a 1:1 volume mix ratio and reaches handle cure at room temperature in 2–4 hours.
The sheet provides typical properties such as viscosity, specific gravity, hardness, tensile strength, dielectric characteristics and recommended storage and handling procedures. Instructions cover cartridge preparation, mixing, dispensing and cleanup, while safety notes warn against use on damp surfaces.
| Mix Ratio (by volume) | 1:1 |
|---|---|
| Glass Transition Temperature (Tg) | 35 °C |
| Hardness | 70 Shore D |
| Water Absorption (24 h) | 0.97% |
| Lap Shear Strength (Al‑Al, 0.010” bond line) | 1,000 psi |
| Thermal Conductivity | 0.15 W/(m·K) |
| AC Dielectric Strength | 440 V/mil |
| Coefficient of Thermal Expansion (below Tg) | 90 ppm/°C |
The product should be mixed at a 1:1 ratio by volume (1A to 1B).
Handle cure is achieved in 2–4 hours at room temperature.
No, the product should not be applied to damp or wet substrates as water can cause adhesive failure.