Condensation cure silicon for resin products

Resin is a kind of organic polymer, which become soften or has a melting range when heat, then it has a tendency to flow under the external force when it begins to soften. Resin is solid, semi-solid, and sometimes it can be a liquid. Broadly speaking, any polymer used as processing raw materials of plastic products is called resin. Resin is applied to various industries. The most common resin products include resin crafts, resin gifts, resin toys, resin photo frame, resin frame, etc. According to different production materials, resin products have been divided into unsaturated resin products, poly resin products, polyester resin products, epoxy resin products and so on. Normally, we need a mold as mediation to batch production of resin products, the most common material for making resin products mold is condensation cure silicon. Today I will introduce the condensation cure silicon for resin products to you.   The characteristics of condensation cure silicon for resin products: RTV silicone rubber can be divided into condensation cure silicon and addition cure products according to its curing method. Here I mainly to analyze the characteristics of condensation cure silicon for resin products from the difference between condensation cure silicon and addition cure products. 1. It vulcanizes at room temperature and can be subject to temperature and humidity. The curing time is within 3-4 hours at 25℃ and no curing inhibition. 2. An exceptional fluidity and good adhesion. 3. Relatively low price and high cost performance. 4. Good resistance to weather, temperature, aging, acid. 5. Easy to operation and demould. 6. Good tensile and tear strength, relatively low shrinkage (< 0.3%).   Operating instructions of condensation cure silicon for resin products: It is very important for choosing the form of making resin products mold and the location of parting line. Firstly, it must be convenient to demould. Then, the parting line selected should not affect the overall effect and quality of resin products mold. Next, it's better to reduce the operating process, such as making a piece mould. Today I will introduce the operating method of brushing mould making considering many resin products with large size. 1. In order to prevent the condensation cure silicon flow around, please put the original resin products model fixed in a regular range with woods and the model is coated with Vaseline or sprayed with release agent. 2. Position the mold line on the top of the resin products model when drawing, and run around the face and eyes as much as possible if the rein products are human model or animal model. 3. Measure the amount of condensation cure silicon and curing agent by weight of 100:2, and then mix them thoroughly. 4. The resin products should be de-aired for 3-5 minutes under vacuum under the environment of -0.1 MPa when brushed the first layer. 4. When making the mold, brush the entire resin products and clay thoroughly. You need brush three layers for each product. Normally, the first layer is 1mm, and the second layer should be 2-3mm, it is a bit thicker than the first one. In the brushing process, it's better to brush another layer before the previous one fully cured. And you should cover a cloth on the second layer when you begin to brush the third layer to increase the strength of condensation cure silicon. 5. The entire working time is 30 to 50 minutes and the curing time is 4 to 5 hours, but it's better for 24 hours or a week. 6. Lastly, you need to make the external mold with gypsum or fiberglass material in support of the soft resin products mold.   Shenzhen Hong Ye Jie Technology Co., Ltd. is the condensation cure silicon for resin products manufacturer. Currently 95% of our silicon for resin products has been widely exported to more than 90 countries and gets its great reputation from all over the world. We supply the most suitable & superior silicone raw materials, but a reasonable price. Any of our condensation cure silicon for resin products with quality problems will be replaced within 3 months after purchase. Besides, we also provide you the best free services and technical support. For more information, please send an e-mail at info@szrl.net of visit us at http://www.szrl.net, thank you!