Epotec comes in a 2 can pack. 2.5 Kgs Resin in a 4 Litre can and 0.5 kg Hardener in a 500 ml can. Open the large can and if there is material on the inside of the lid and upper internal surfaces, scrape it down into the rest of the Resin. With both cans open then add all the small can to the big can. That is All Hardener is put into the Resin. At this stage there will be a little Hardener left behind. Mix slowly together with a plastic hand mixer, using slow deliberate moves down into and around and then up and out of the mix. This will blend the Hardener into the Resin with out putting air into the mix. Make sure you mix the sides and bottom as well. After 2 – 3 minutes you will nearly be finished. Tip any remaining Hardener (there will be several teaspoons worth) into the Resin and continue mixing for another minute or so till a homogenous mix of uniform colour is observed. Allow to stand 10 minutes to pre react. Then, if required add up to 10% Epotec thinners, (half the now empty Hardener can) remix and add to roller tray.