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How Can Vacuum Impregnation Pumps Be Protected From Sealant?

Tue, Dec 18, 2012 @ 02:34 PM

In an earlier blog article, we discussed the most common ways that sealant can get into vacuum pumps during the impregnation process. As a reminder,...

How Does Vacuum Impregnation Work?

Tue, Dec 04, 2012 @ 12:40 PM

Vacuum impregnation seals the porosity in metal castings, thus making leaky castings pressure tight. But how exactly does it work? The following...

Why do I need to impregnate more than once?

Tue, Dec 04, 2012 @ 12:36 PM

There are a couple of possibilities that would require a double cycle impregnation.

Old vs New Vacuum Impregnation

Mon, Sep 17, 2012 @ 12:35 PM

The other morning I was walking the dog around 5:00 AM, and I noticed how exceptionally crisp and brilliant the stars were in the pre dawn sky,...

Automated Data Collection in Vacuum Impregnation

Tue, Aug 14, 2012 @ 09:56 AM

Did we make money on that job?

Preventative Maintenance in Casting Impregnation

Wed, May 23, 2012 @ 11:19 AM

In the casting impregnation industry preventative maintenance is a necessity. Due to the nature of the impregnation process and the wet environment,...

How Can Sealant Get Into a Vacuum Pump?

Tue, May 01, 2012 @ 09:57 AM

A common problem for those operating impregnation systems is sealant making its way into a vacuum pump. Sealant inside a pump (Figure 1) will lead...

Dry Vacuum vs Wet Vacuum Process

Tue, Mar 27, 2012 @ 10:17 AM

Fundamentally, there are two factors that control impregnation results – sealant quality (formulation and working condition) and vacuum (depth of...

Vacuum Impregnation Processes

Thu, Jan 12, 2012 @ 10:29 AM

Why does GW recommend the dry vacuum and pressure (DVP) process?

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Top 5 Vacuum Impregnation Blog Posts in 2012