EX­PERT AD­VICE

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Son­ica Buck­steg, Du­lux colour ex­pert,

replies Sur­faces must be ad­e­quately pre­pared be­fore paint­ing to pro­vide a ‘key’ for sub­se­quent lay­ers. If the piece has plenty of de­tail re­quir­ing loads of in­tri­cate sand­ing, you can achieve a rea­son­able ‘key’ by scrub­bing the sur­faces us­ing steel wool and a sugar soap so­lu­tion; the steel wool will al­low you to get into all the nooks and cran­nies.

If the ex­ist­ing var­nish or paint is in a sound con­di­tion (not flak­ing, peel­ing or craz­ing), you can lightly sand the sur­faces with 220-grit sand­pa­per (if smooth) or 180-grit (if scratched or pit­ted) and fol­low with 220-grit. Wipe away dust with a damp cloth and wash down with a sugar soap so­lu­tion; al­low sur­faces to dry thor­oughly. Then ap­ply a primer such as Du­lux Su­per­grip fol­lowed by an acrylic PVA or enamel; it’s best to fol­low through with a par­tic­u­lar brand.

For best re­sults:

1 Be aware of am­bi­ent tem­per­a­ture – if it’s too hot, paint won’t flow or it’ll dry too quickly.

2 Mon­i­tor mois­ture and hu­mid­ity as these can af­fect ad­he­sion be­tween coats. 3 Use a good qual­ity brush! 4 Thin your first coat of colour slightly. 5 Al­low each coat to dry thor­oughly. 6 Sand lightly with fine sand­pa­per be­tween coats and also wipe sur­faces thor­oughly be­tween coats to re­move any signs of dust.

CON­TACT du­lux.co.za.

Once sanded, pre­vi­ously glossy sur­faces should ap­pear dull all over, in­di­cat­ing a slightly etched sur­face that will hold paint bet­ter.

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