The Permacol® 2035Z-series are smooth, thixotropic, one component adhesives on epoxy base for SMD/SMT purposes. Adhesives of the 2035Z-series can be applied, dispensed or screen printed, without stringing and will not sag whilst curing. These thixotropic adhesives hold electronic components in position and prevent movement due to vibration even before curing.
The cured adhesive has excellent electric properties and heat resistance during soldering.
In the 2035Z-series, we supply adhesives in different viscosities, adjusted to the method applied or type of electronic component to bond. This viscosity assigned by the extensions /15, /25, /30 and /40 are:
VISCOSITY TYPE MAIN APPLICATION
2035Z/15 Dispensable adhesive for larger components, High dispensing temperatures possible, Stencil printing.
2035Z/25 SMD-adhesive for stencil printing. High viscosity.
2035Z/30 SMD-adhesive for stencil printing / dispensing with high viscosity.
2035Z/40 SMD-adhesive for stencil printing / dispensing.
|Viscosity at D=30/s 23°C
It must be clear that the curing time depends on several parameters. Oven capacity, board design, type of components on Printed Circuit Board, and type of Printed Circuit Board (multilayers have higher heat capacity) can influence the cure speed.
SURFACE TEMPERATURE MINIMUM HEATING TIME
100°C 6 minutes
125°C 2 minutes
150°C 90 seconds