91精品视频免-91精品视频免费看-91精品视频网-91精品视频一区-91精品视频在线-91精品视频在线播放

Products

News

Advantages and Disadvantages of RTV Silicone Rubber

Advantages
RTV?Silicone?Rubber has the best release properties of all the mold rubbers, which is especially an advantage when doing production casting of resins (polyurethane, polyester and epoxy). No release agent is required, so there is no post-production cleanup. Silicones also exhibit good chemical resistance and high temperature resistance (400°F / 205°C and higher). High temperature resistance makes silicone the only mold rubber suitable for casting low melt metals and alloys (e.g. zinc, tin, pewter, and Wood's metal). The combination of good release properties, chemical resistance and heat resistance makes silicone well-suited for production casting of resins.
Disadvantages
RTV Silicone Rubber are generally high in cost - especially platinum-cure. They are also sensitive to substances (sulfur clay for example) that may prevent the silicone from curing (referred to as cure inhibition). Silicones are usually very thick (high viscosity), and must be vacuum degassed prior to pouring to minimize bubble entrapment. If making a brush-on rubber mold, the curing time factor between coats is long (longer than urethanes or polysulfides, shorter than latex). Silicone components (A+B) must be mixed accurately by weight (scale required) or they will not work. Tin catalyst silicones will shrink somewhat and do not have a long shelf life.
Certain types of RTV release acetic acid during the curing process, and this can attack solder joints, causing the solder to detach from the copper wire.

Search

Search for keywords or models and products.

Contact Us

Jiangsu Tianchen New Material Co., Ltd

Tel: 0511-88135610
0511-88135618
Fax: 0511-88135111
Address: 568 Ganglong Road, Development Zone, Yangzhong City, Jiangsu Province
Email: wangjin@tcgcl.com
主站蜘蛛池模板: 人妻制服丝袜有码中文字幕 | 91国内视频在线观看 | 少妇自拍三级在线观看 | 亚洲va欧美va国产综合先锋 | 福利片在线观看免费高清视频 | 亚洲精品成人片在线观看精品字幕 | 无码视频在线观看 | 国产日韩av免费无码一区二区三 | 国产欧美在线观看不卡 | 无码专区无码专区视频网址 | 特级高清免费a级毛片 | 国产精品1区2区3区在线播放 | 欧美亚洲日本久久精品 | 国产无码专区精品 | 欧美激情综合网 | 国产av一区二区精品久 | 国产亚洲一区二区三区 | 精品视频在线观看一区二区 | 久久免费国产精品一区二区 | 日韩福利局二区视频 | 国产亚洲欧洲997久久 | 欧美精品片在线观看网站 | 国产91专区| 久久精品aⅴ无码中文字字幕不卡 | 亚洲日本欧美 | 91黑丝| 国产一区二区精品久久91 | 人人做人人爽 | 九九热精品免费观看 | 无码av波多野结衣久久 | 亚洲精品无码久久久久电影 | 欧美一级电影网站 | 亚洲国产人成自久久国产 | 麻豆91精品91久久久久久 | 欧美黑人肉体狂欢交换大派对在线 | 国产精品无码久久aⅴ | 欧美人与动性行为网站免费 | 国产露出精品一区二区三区 | 国产又色又刺激视频 | 国产熟女精品视频大全 | 国产在线欧美 |