A quality epoxy applicator that is ideal for dispensing ResinTech RT125.  This is the one we use here at EMH Motorsports and have had zero problems with it in over a decade of use. The same can't be said of other knock-off budget applicators out there, so be careful.  The unit comes with a 1:1 and a 2:1 mixing plunger.  50ml capacity.

www.3m.com