Thank you all for the help so far with our large optical flat project:
One concern we have now is buying 72 lbs / 32 kgs of optical pitch
Ideally I'd like to see if there's a way to buy this in bulk to make it more affordable, but I can only see suppliers dealing in small quantities at the moment. As you can imagine - this then becomes extremely expensive.
Is it possible that anybody has any contacts who might be able to deal in these larger quantities? e.g. even with the manufacturers themselves? Or perhaps are there other trade names that are used when purchasing industrial quantities?