Electronics Forum | Tue Dec 30 10:27:49 EST 2014 | Anon
So far I know of two dispensing system cleaner and conditioner to purge the solder paste out to preserve the valve. Valve Purge from EFD Nordson and Purgel from Interflux. Are there any other alternatives for purging and cleaning dispensing systems?
Electronics Forum | Tue Aug 04 14:39:46 EDT 2015 | tombstonesmt
Sarason, This idea has been brought to the table... The issue with the ammoniated latex is that any friction causes shear curing inside the valve. We did find a Techcon "Pinch Valve" that we will be running some samples through. It has a dispos
Electronics Forum | Fri Jul 31 09:46:12 EDT 2015 | tombstonesmt
Anyone?? Recently attempted using a PVA FC100 valve without luck. Works great until it clogs..
Electronics Forum | Fri Aug 07 09:31:21 EDT 2015 | esoderberg
We use Humiseal T300 latex mask for over 17 years. No smell. That said we have been dispensing several ways. One is a Asymtek 718 in-line machine using a 1 gallon pressure pot and their DV7000 valve. It is an auger valve that has been highly successf
Electronics Forum | Tue Sep 08 16:35:17 EDT 2015 | duso02
There are many liquid masking manufacturers. Some even use acrylic vice latex. Try Contronic Devices. They make their mask in multiple viscosities depending on how you will apply it and where.
Electronics Forum | Fri Mar 13 17:17:07 EDT 2015 | tombstonesmt
Hello everyone, Has anyone had success dispensing ammoniated latex masking using a valve? If so, what company and type of valve are you using? Our current supplier of non-ammoniated latex masking will no longer provide a container larger than an 8 o
Electronics Forum | Wed Oct 15 16:34:36 EDT 2008 | gregcr
Hi All, I am retrofitting a machine with a solder paste dispenser head, and am trying to decide what direction to go, with a dispense valve. The choices I know are either a standard Air over, or some kind of positive displacement valve such as a sc
Electronics Forum | Fri Jan 03 00:22:02 EST 2003 | Steve
We have an Ekra E5 that uses what looks like standard auto valve stems to dispense the cleaning fluid. They leak.. Are they just standard schrader valves or are special to withstand the chemistry of stencil cleaner?
Electronics Forum | Mon Mar 10 18:43:14 EDT 2008 | chrisgriffin
If you are running 1 shift 8 hours a day, I would PM the valve at least twice a week depending on dispense medium. With the opoxy I used, I cleaned the valve and needle every day.
Electronics Forum | Sat Aug 01 02:38:50 EDT 2015 | sarason
Is the company near to you, if so walk up to the back door, with a load of cash in hand and a suitable container. Another option get your hands on their formula and have it made up by a chemical batching company. If you can't do that get the MSDS and
