Originally Posted By: gbeaumont This post was automatically imported from our archived forum.
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But here is a question that has plagued me for ages, is this particular example what used to be sold as "Insullbrick" ?? I have tried to research this many times and I cannot find a picture of what can be proven to be insullbrick  
Maybe one of our older contractor members can answer this (where is John Bowman when you need him )
Originally Posted By: gbeaumont This post was automatically imported from our archived forum.
Hi John,
now that is an interesting link, I knew we kept you round for something.    
Seriously that was just what I was looking for many thanks