It's hard to beat physics. Any liquid that has the viscosity to flow where
you want it to provide coverage, will also flow where you do not want it.
Especially with an uncontrolled robot. It is why most coating specs do not
require the leads of the connectors to be coated. One option is to use a
gel material to coat the leads first before applying the low viscosity
material. The gel will not flow into the connector and prevent the liquid
from entering. If your robot does not have that capability, it can be
applied by hand prior to the robot.

Lloyd Duso
Diamond-MT
(814) 535-3505
www.Diamond-mt.com


On Mon, Jan 25, 2021 at 11:26 AM Reyes, Angel LAM2 4429 <[log in to unmask]>
wrote:

> Hi all
>
> Any recommendation for conformal coating UV cure to be applied by robot on
> SMT SW leads, we tried DYMAX EMAX 99003 but did not work material migrate
> by capillarity inside SW and internal metal contact parts were electrical
> isolated
>
> Angel Reyes
> 619 661 4429
>