環(huán)氧地坪漆施工后起皮的原因及解決辦法
環(huán)氧地坪漆施工后起皮的原因:被涂物表面太光滑;被涂物表面應打磨或經化學處理。舊漆面應重新打磨處理;環(huán)氧地坪漆配套不適當;通過試驗選擇配套性良好的涂料品種及改用“濕碰濕”工藝.或增加中間涂層;在底漆未干透之前就罩面漆或清漆.漆膜易發(fā)生開裂或脫落,一般應在底漆完全干透后再罩面漆;在潮濕或霉染的物面上涂裝.使漆與底材附著不良;磚石、水泥等物面應充分干燥和除去霉染物后再涂裝施工;涂膜太厚,由于表層已干透.而底層干得慢或未干透.;在干燥過程中由于面漆收縮過甚而引起開裂脫落 施工中應注意每道漆的漆膜不宜太厚
Reasons for peeling of epoxy floor paint after application: the surface of the coating is too smooth; the surface of the coating should be polished or chemically treated. Old paint surface should be re-polished; epoxy floor paint matching is inappropriate; through the test to select a good matching type of paint and use the "wet touch wet" process, or increase the intermediate coating; before the primer is dry through the overcoat or varnish. Painting on wet or mildew-stained surfaces. Poor adhesion between paint and substrate; surface of masonry, cement, etc. should be dried sufficiently and mildew-stained materials removed before painting; the film is too thick, because the surface has dried thoroughly; and the bottom dried slowly or not dried thoroughly. Paint film should not be too thick. 一、環(huán)氧地坪施工人員的過失或者是施工人員的經驗不足
1. The fault of the builders of the epoxy floor or the lack of experience of the construction personnel.
1、涂裝前地表的處理不是很好,被涂物表面上有油污、蠟、水汽、灰塵和化學藥品等,或表面預處理后至涂漆施工的間隔時間過長。
1. The surface treatment before painting is not very good. Oil, wax, water vapor, dust and chemicals are on the surface of the coating, or the interval between surface pretreatment and painting is too long.
2、被涂物表面的光滑過度,而沒有進行針對性處理或沒有選擇針對性底涂材料。
2. Excessive smoothness of the coated surface without targeted treatment or selection of targeted primer materials.
3、在底漆未干透之前就罩面漆或清漆,涂膜易發(fā)生開裂或脫落;
3. Cover the finish or varnish before the primer is dry. The coating will easily crack or fall off.
4、涂膜太厚,由于表層已干透,而底層干得慢或未干透,在干燥過程中由于面漆收縮過甚而引起開裂脫落;
4. Coating film is too thick, because the surface has dried through, and the bottom dried slowly or not thoroughly, in the drying process due to excessive shrinkage of the top paint caused cracking and shedding;
5、施工環(huán)境溫度高,涂裝距離(噴涂)大,稀釋劑揮發(fā)快,致使環(huán)氧地坪漆漆膜未流平,就使漆膜出現(xiàn)起皺橘皮現(xiàn)象。為了加快涂膜干燥,催干劑加入量太大,也會造成環(huán)氧環(huán)氧地坪漆涂膜起皺。在高溫下避免施工,或加強通風,降低施工環(huán)境溫度,調整噴漆距離,適當加入慢干溶劑,減少催干劑用量,是避免和克服環(huán)氧地坪漆涂膜起皺的方法。
5. The construction environment temperature is high, the painting distance (spraying) is big, the diluent volatilizes quickly, causes the floor paint film not to flow flat, causes the paint film to appear the wrinkled orange peel phenomenon. In order to accelerate the drying of film, too much addition of drier will cause wrinkling of epoxy floor paint film. Avoid construction at high temperature, or strengthen ventilation, reduce the construction environment temperature, adjust the spray distance, properly add slow-drying solvent, reduce the amount of drier, is to avoid and overcome the floor paint film wrinkling.
6、底漆表干未完全干硬,或固化劑含量不足,地坪漆漆膜交聯(lián)不充分就涂裝面漆或多涂,即發(fā)生起皺咬底現(xiàn)象。使用聚合物含量高的硝基漆或水性漆作底漆,由于PVC含量低,也造成復涂面漆咬底。如面漆使用大量慢干的酮類等強溶劑,也容易使環(huán)氧地坪漆產生咬底現(xiàn)象。
6. Primer surface is not completely dry, or curing agent content is insufficient, floor paint film cross-linking insufficient topcoat or multi-coating, that is, wrinkle underbite. The use of nitrolacquers or waterborne lacquers with high polymer content as primers, due to the low content of PVC, also causes the re-coated topcoat undercut. If the topcoat uses a lot of slow drying ketones and other strong solvents, it will make the epoxy floor paint easy to bite.
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