CKK Friday 29 May, page-164

"The market size in terms of value of the proppant market in 2013 was estimated to be about 45.12 million tons and is projected to reach 84.20 million tons by 2019, at a CAGR of 10.7% from 2014 to 2019. The proppant market is estimated to reach $19,022.71 million by 2019"
http://www.marketsandmarkets.com/Market-Reports/proppant-market-802.html

Interestingly if LWP were to take a large market share of the global proppant market the result due to weight and lower price of proppant would result in a reduction in the market size and tonnage produced (proppants are sold by weight yet consumed by volume).

Due to the lower weight per volume we could expect to see a reduction in annual tonnage of about 23% and a reduction in the annual revenue of around 40%.

If LWP had 100% market share then the projected 84.2 million tonnes would reduce to 64.8 million tonnes and the revenue of $19,022.71 million would reduce to $11,413.63 million

The higher LWP's market share the smaller that market becomes...

That said, if we manage to capture 1% market share of proppant used worldwide (or conservatively 10% or the ceramic proppant usage) by 2019 (0.648 Million tonnes based on reduced weight per volume) at a royalty of 3 cents per pound then we would be looking at a revenue of $42.8 million USD (55.6m AUD)

Thats some pretty impressive blue sky potential