reaction injection moulding simply means that after mixing the two liquid materials in the production of thermoset polymer reaction; referred to RIM. Forming chemical reaction during an injection molding process.
2014年3月7日星期五
Gypsum as clean and beautiful
Plaster to clean and beautiful, to maintain its original beauty, should be covered with a layer of glass paper or plastic film immediately in the purchase of new to cast. In the processing of plaster dust stained, clean a feather duster or soft brush, brush, gently blowing dust, or with a clean soft cloth wipe. Can not use wet cloth to wipe, otherwise it will MASTER pe pipe fitting mold more wiping more dirty. Plaster for mobile position, should wear clean soft gloves, or on the touch pad on a clean soft cloth or cotton, avoid direct holding the bouldering audio-visual, avoid the stained with juice stains.Plaster like the place for a long time, or stored without attention stained with stains, depending on the circumstances as follows: for the disposal of small stains, use a knife to gently scrape the surface layer; if it is stained with ink, and penetrating deeper, will ink is dug out, and then blending of gypsum the fill, air dry, with fine sandpaper draw. Fill the gypsum as inconsistent with the original plaster tone, will affect the appearance, in MASTER china plastic injection molding this case, the whole statue speech again, and plaster water is: 30 grams of lime stirring in 1000 ml of water, and then the gypsum products for 3 to 5 minutes, then remove, wash 2 ~ 3 times with water, dried, and finally sprinkle some chalk powder, plaster will be white as snow. If the past years, very dirty plaster, it cannot be processed by the above method. The plaster immersed in the ratio of 1000 ml of soapy water with 10 ~ 20 ml of ammonia water, gently washing for 10 minutes, then rinse out. If it is dirty very much, can not wash with this method, the gypsum are coated with a layer of imitation copper color, transformed it into imitation bronze statues, elegant chic
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