Adhesives for SMD Assembly and Reflow Soldering

Before soldering, components with pin contacts or SMDs are often bonded to the PCB with adhesive. This allows, for example, several capacitors, electrolytic capacitors and coils to be positioned on a circuit board and cured within just a few seconds to prevent their falling over or sliding out of position on the PCB. The secured components can then be reflow-soldered in a single work step, which saves time and speeds up production.

Panacol’s adhesives for reflow soldering have been developed specially to cure rapidly under UV light or at heat exposure. Once cured, they can withstand short-term exposure to higher temperatures, making them suitable for reflow soldering.

On request these adhesives are also available in red colour or with fluorescent pigment to facilitate quality and application monitoring. Their red colour or fluorescence allows the bond quality of every component to be easily inspected also in mass production.

The table below lists a selection of Panacol adhesives that are suitable for holding components and for reflow soldering. Further products and custom solutions are available on request.

Red dots of adhesive are easily applied via screen printing
Red SMD glue

Adhesive Viscosity [mPas] Base Curing* Properties
Vitralit® 6104 VT 80,000-90,000 acrylate UV
Structalit® 3060 30,000-40,000 epoxy thermal fast curing
excellent adhesion on dissimilar substrates
Structalit® 5604 25,000-40,000 epoxy thermal fast curing

*UV = 320 - 390 nm