Electric Variable Ratio Meter-Mix Proportioner (EVR) for Electronics Manufacturing
30+ years spec experience. Send James the process data and get a real answer — not a catalog page.
Request a Spec Review →Yes. LibertyCES has documented Electric Variable Ratio Meter-Mix Proportioner (EVR) in Electronics Manufacturing applications, including Graco EVR Proportioner. The right model depends on the fluid, concentration, temperature, flow and duty cycle, so send James your process data for a free spec review before final selection.
Notes from the vendor documentation
Real named materials TIMs, epoxies, silicones, urethanes, acrylics — same electronics tie as EFR. Sellable feature: 'base purge' conserves material during changeovers without replacing static/dynamic mixers, which matters on a line running multiple two-component recipes per shift. Manuals 3A8565EN-G, 345203EN-C.
Products cited in this application
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| Ratio range | 1:1 to 5:1 or 2:1 to 10:1 | Graco — Sealants & Adhesives |
| Maximum flow | Up to 6,400 cc/min | Graco — Sealants & Adhesives |
| Rated materials | TIMs, epoxies, silicones, urethanes, acrylics | Graco — Sealants & Adhesives |
| Changeover feature | "Base purge" conserves material during changeovers without replacing static/dynamic mixers | Graco — Sealants & Adhesives |
Skipping base purge on a line running multiple two-component recipes per shift forces a static/dynamic mixer swap at every ratio changeover — the material and downtime cost base purge is built to remove.
A line running several two-component TIM or epoxy recipes per shift loses time and material every time a mixer has to be swapped for a ratio change. EVR's base purge is the feature that removes that step — the real reason to spec EVR over a fixed-ratio EFR when the electronics line runs more than one adhesive chemistry.
Every claim on this page traces to real, vendor-published documentation on file with LibertyCES. Confirm current specifications with the manufacturer before final specification.
FAQ
How is Electric Variable Ratio Meter-Mix Proportioner (EVR) used in Electronics Manufacturing?
Real named materials TIMs, epoxies, silicones, urethanes, acrylics — same electronics tie as EFR. Sellable feature: 'base purge' conserves material during changeovers without replacing static/dynamic mixers, which matters on a line running multiple two-component recipes per shift. Manuals 3A8565EN-G, 345203EN-C.
Which Electric Variable Ratio Meter-Mix Proportioner (EVR) models are specified for Electronics Manufacturing?
Documented models include Graco EVR Proportioner. Confirm current specifications with the manufacturer before final selection.
What does LibertyCES need to size Electric Variable Ratio Meter-Mix Proportioner (EVR) for a Electronics Manufacturing application?
The fluid and its concentration, operating temperature, flow or volume, pressure and suction conditions, duty cycle, and the existing equipment it replaces or connects to. James reviews it for free.
Ready to buy or need a fast answer? Call, text, or email James directly — (559) 395-5500 · [email protected].
Send James your spec
Fluid, concentration, temperature, flow or volume, and where it goes. James replies with a real answer, not a catalog page.
Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated