RZ20 Silicone & Hardener 500gm pack
DME RZ20 Silicone & Hardener
A maximum casting thickness up to 25 mm can be realized in open moulds.
Applications: Casting of piercing punch guides, embedding castings of punches, guide bushes and guide pillars. The clearance of the punch guide can be influenced by the thickness of the mold release agent which is sprayed on the surface. The clearance can also negatively be influenced by the greater thermal expansion coefficient of the plastics if fluctuations of temperature occur and so a determined value should not be exceeded. The proper value should vary between 2 and 6 mm - for the casting of hardened guide bushes with or without collar the clearance should be 2-10 mm. Dies which are furnished with casting compound punch guides should be heated up to room temperature before they are mounted in the press.