This morning I've just introduced some paint into a few small (1 to 2mm) chips in the car's paintwork and a small chip on a freezer door.
For the first time I used
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I sprayed the paint on a bit of plastic, dipped the 'brush' into it and dabbed the paint into the chips. These brushes work extremely well for this type of application .Available from many ebay sellers in packs of 100 for around £3.50.
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(no connection with any ebay seller except as a paying customer)