Quartz Worktop Drill & Fill Colour Correction v2 A large dark coloured particle in a quartz engineered stone can be drilled out, filled with a resin and quartz mix to resemble the surface, taking attention away from the damage. 1 Small fragment, but very visible from distance 2 In closer inspection, it really stands out 3 Drill that fragment out 4 Mix the resin and quartz filler to match the stone texture and colour 5 Can you see it? 6 Stone surface looks consistent 7 No sign of the repair see more repairs