CONCRETE as backup mat.

From: Pedro Garayo Olarra (
Date: Wed Dec 10 1997 - 21:23:21 EET

Hi rpmlers,
has anybody knows how does concrete work as a backup material for plastic
injection molds? How can anybody raise thermal conductivity for concrete?
What are the main problems in using concrete, instead of a filled resin or
a low melt alloy? Is it a must to do spray metal for concrete; I mean, how
does concrete work with abrasion?

Thank you in advance for your answer,


Pedro Garayo
Research Engineer
Parque Tecnologico de Boecillo.P 209.
Boecillo 47151 Valladolid. SPAIN.
tel: 34-83-548035
fax: 34-83-548062

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