When an ordinary cloth is used to rub grease off the glass , the grease becomes an additional coating with varying thickness 當(dāng)使用普通布塊擦抹玻璃上的油垢時,油垢會形成另外一層不同厚度的膜層。
If the required paint film thickness has not been achieved , the additional coats should be applied till the specified thickness is attained 如果未達(dá)到要求的濕膜厚度,應(yīng)覆涂直到滿足指定的濕膜厚。
If necessary , holes , seams and edges , where painting is difficult , should be given a stripe coating and additional coating with brush prior to airless spraying 必要時,在難以涂裝的孔、縫或邊緣處。應(yīng)在正式噴涂之前進(jìn)行預(yù)涂。