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油性裂纹漆施工
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油性裂纹漆施工

有关油性裂纹漆施工工艺的说明 
裂纹漆裂的效果的好坏以及是否开裂,除与裂纹漆本身的质量和喷涂的方法、涂膜的厚薄有着直接关系外,还与:
 
1、喷涂在裂纹漆下面的NC底漆或NC面漆涂膜的厚薄有着十分密切的关系,实验室经多次反复的实验后发现,同样的裂纹漆喷涂在涂膜厚薄不相同的NC底漆上裂纹效果是完全不相同的,当NC底漆的涂布量在120-150g/㎡,喷涂现在公司生产的QB-0811-5白色裂纹漆裂纹效果良好,当NC底漆的涂布量在80-100g/㎡时,裂纹效果变差,当NC底漆的涂布量<80 g/㎡或更薄时,会导致裂纹漆无法正常开裂。
2、NC底漆的待干时间,从技术的角度要求在喷涂裂纹漆前NC底漆的待干时间要求在1小时左右,也就是要求涂膜达到指压干,即我们用大拇指用力按压涂膜,涂膜上没有指纹印较好,如果待干时间更长效果更佳,但是如果NC底漆的待干时间太短而急于喷涂裂纹漆的话,会导致裂纹涂膜起皮,表面效果不好。
3、NC裂纹漆在喷涂时,涂膜要适中,过厚过薄都会导致裂纹漆效果不好。
4、裂纹漆是否开裂以及裂纹效果的好坏与空气的湿度没有直接的关系,因为实验室在空气湿度为99%时时候,喷涂裂纹漆,按照上面工艺要求施工同样能得到良好的裂纹效果。
 
Description of the construction process of oily crack paint
The effect of crack cracking and cracking, in addition to the quality of the crack paint itself and the method of spraying, the thickness of the film is directly related to:
 
1. The thickness of the NC primer or NC topcoat film sprayed under the cracked paint has a very close relationship. After repeated experiments, the same crack paint was sprayed on the NC bottom with different coating thickness. The crack effect on the paint is completely different. When the coating amount of the NC primer is 120-150g/m2, the crack effect of the QB-0811-5 white crack paint produced by the company is good, when the coating amount of the NC primer is applied. At 80-100 g/m2, the crack effect is deteriorated, and when the coating amount of the NC primer is <80 g/m2 or less, the crack paint may not be normally cracked.
2, NC primer drying time, from the technical point of view, before the spray crack paint, the time required for the NC primer to dry is about 1 hour, that is, the film is required to reach the finger press, that is, we press hard with the thumb Coating film, no fingerprint on the coating film is better, if the drying time is longer, the effect is better, but if the NC primer is too short to be sprayed with crack paint, it will lead to crack coating and surface effect. not good.
3, NC crack paint When spraying, the coating film should be moderate, too thick and too thin will lead to crack paint effect is not good.
4. Whether the crack paint cracks and the crack effect is not directly related to the humidity of the air, because the laboratory sprays the crack paint when the air humidity is 99%, and the construction can also get a good crack effect according to the above process requirements.