MMI-技術文件何時為噴完膠殼後噴灑樹脂的最佳時機

首頁| 登入| 加入會員|

購物車 | 切換简体中文

產品分類

最新消息

技術文件

技術文件 CONSULTING CENTER

何時為噴完膠殼後噴灑樹脂的最佳時機	2007/02/28
QUESTION： The best time and the limited time for the gel coat laminating after spray?? ANSWER： Our recommendation for laminating on gel coat is as follows: The minimum time after spraying at which lamination can be begun is the time at which the gel coat film backside can be brushed lightly with a clean, dry finger without leaving residue on the finger. In other words, lamination can begin once the gel coat is firm enough to not be semi-liquid on the back side. For best results lamination should occur within about two hours of this point, because the longer you wait after the gel coat is cured, the more likely you will be to see pre-release (where the gel coat separates from the mold) and contamination on the gel coat which could lead to blistering or delamination. We highly recommend that gel coat not sit overnight or longer before lamination. Depending upon the specific gel coat used and the ambient conditions (temperature, humidity, air movement) a sprayed gel coat film can be ready to laminate on as quickly as 30 minutes or may take as long as a couple hours. If your gel coat has a specified cup gel time of about 26 minutes, and your ambient temperature is about 80F, then you can expect a lamination time of maybe 45 minutes to an hour at about 1.5% MEKP catalyst. 噴灑樹脂的時機，一定要等膠殼完全乾後，或是你可以用乾淨、乾燥的手指，輕輕抹過膠殼，且不會留下任何的殘渣在你的手指上，便可開始噴灑樹脂。最好的時間是在兩小時之內。因為膠殼與空氣接觸太久，空氣中一些污染物質會使膠殼產生起泡、變色之類的變化，嚴重還會導致脫膜。因此，建議膠殼噴完後不要停置太久，更不能放隔夜後才噴灑樹脂。另外，廠牌不同，及四周條件不同(溫度、溼度、空氣流動)都會影響到噴樹脂的時間，或許三十分鐘，或許幾個小時。舉例來說：如果膠殼膠化時間為26分鐘，四周的溫度為華氏80F(攝氏26.7度)時，可以噴灑樹脂的時間約為45分鐘到1小時後。(已加入約1.5%MEKP硬化劑為主。)

80661 高雄市前鎮區復興四路12號6樓之15(高雄軟體園區) 6F-15, No.12, Fuxing 4th Rd., Qianzhen Dist., Kaohsiung City 806, Taiwan(R.O.C.)

統一編號 : 28610088 | Email: info@mmimarine.com Visa Credit Cards