Basically the revell aqua color colours can be thinned with water so that they can be sprayed thinning with aqua color mix however has two advantagesfirstly the drying of the colour is delayed this prevents a too quick drying of the colour in the spray gun and on the surfacesecondly this thinner optimises also the spray results on the model when using the matt and silk matt colour shades aqua color mix reduces the undesired edge loss when applying the colour