E-book Category: How To E-book Title: RTY Repro Patterns and Moulds Book Description: RTV silicone is the wonder material of the 21st century, it is used widely in many types of industrial applications. The foundry industry quickly realized it's huge potential in the reproduction of patterns and moulds. We'll outline how you can combine RTV material and ordinary car body filler to make repro patterns in your home foundry workshop to great effect.You'll be getting this ebook as a free download also.