以首模原型進行簡易矽膠模具複製，將首模原件固定於大於該尺寸方形容器內並預設分模線，進料及排氣孔位置，將等比例硬化劑加入矽膠調和均勻後， 倒入首模原型之容器內，待矽膠硬化後，此矽膠模具軟硬度約70度，利用工具切開矽膠至預設分模線，分為上模(公模)及下模(母模)，同時可取出首模原 型，其空間保持完整無缺料。
將矽膠模具合模，並利用板片及膠布平均施力捆綁，外露進料及預設氣孔，將模具擺置於真空注型機下層，倒入該重量等比例之熱固性PU材料於注型杯 內分成A劑及B劑2杯，放置於真空注型機上層固定，進行抽出空氣，待真空注型機內保持真空狀況後，將B劑倒入A劑調和均勻再倒入模具內 待模具內PU 材料硬化後，折開上下模，取出PU半成品再做修補工作。
使用於矽膠模具注型材料為熱固性PU，此材料分為A劑(主劑) B劑(硬化劑)需等比例調和硬化成型，PU材料又分仿ABS，壓克力，橡膠等物性材質，ABS 可於外觀塗裝，印刷及成型染色，壓克力可於成型染色呈現半透明狀態，橡膠可調整軟硬度成型由30~90度並染色
Established in 1997, Zhan Chung Mockup Co. has been engaging in professional model making including exterior models, mechanism models, function models and temporary silicone molds, enabling businesses to conduct analyses and evaluation on the appearances, materials, colors, qualities and assembly precision of their products. It’s been over a decade since the company was first founded in Lucho, Taipei County. In 2006 , the company was expanded to the current location of Xinzhuang District, New Taipei City.