I am trying to bind exfoliated mica (perlite) to create a lightweight panel rthat will retain the perlite properties. Have tried mixing Sodium silicate and oven baking but the resultant "brick" is still very weak and crumbs easily - any suggestions??
we are seeking a ph netral phenolic foam to use in a building panel product. As the frame is zinc coated steel it is perceived that we shpould find a non acidic foam to avoid corrosion.
The foam will be retained in an envelope and should not be subject to water other than a small amount of...
