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A 400 ML Manual Adhesive Dispensing Gun is required for all Plexus 400mL and 490 mL adhesive cartridges. The Cox M400XMR and M400XMR/10 have a plunger with a 26:1 mechanical advantage that operates on a hydraulic action, creating a smoother flow than most caulking guns.
The M400XMR dispenses the two components of the adhesive in the proper 1:1 or 2:1 ratio. The M400XMR/10 dispenses the two components of the adhesive in the proper 10:1 ratio. With the use of a static mixing nozzle (sold separately), the A and B parts are mixed thoroughly and dispensed properly. This side-loading frame design provides fast, easy, mess-free cartridge change outs.
Reviews for Cox M400XMR Manual 400 ML Adhesive Dispensing Guns
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In my recent review, I mistakenly said the tap used was a 1/4"-20. That was quite wrong; it should have said M8 X 1.25 (metric, not inches). Anyway, the tapping is easy to do (use 17/64" pilot drill to open up the hole in the McMaster part prior to tapping). The Cox gun is really nice to use!. In this case, am using Plexus MA 425 to adhesively bond/pop-rivet thin-wall steel fittings to aluminum tubing. Long open time of MA 425 allowed for multiple set-ups over an hour period using only one mixing nozzle and perhaps 1/4 of the cartridge content.
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If you're going to apply a 1:10 product, be sure to order the M400XMR/10. Mistakenly, I didn't and needed a quick fix. I ordered McMaster-Carr P/N 92510A773, a 5/8" O.D X 3/8" long aluminum spacer, tapped it with a 1/4"-20 tap and substituted it for the (larger diameter) activator push pad on my 1:1/1:2 model, and now I have a tool that is adaptable to both types of 490 ml adhesive cartridges.
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Worked well
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Easy to use
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