Usage for KBLB silk ...
Chompiee, one pr from KBLB indicated a price point of "below $300 per kilo." Ordinary silk sells at around $50/kilo for a good quality silk. Lower quality silks sell for less.
The military would have an almost insatiable desire for dragon silk for their uniforms. First, of course, the tough fibers represent extra protection against shrapnel, etc. This isn't to say that a silk uniform would be bulletproof, but it would give much greater protection to our soldiers.
Next, dragon silk does not burn or melt. Cotton burns, which can add to the burn from a primary heat source. Nylon and polyester melt, which is almost as bad because the molten liquid will cause 3rd degree burns when it comes into contact with skin. Silk turns to ash. So we are not simply talking about their shirts and pants, but also undershirts, underwear, socks, and jackets.
Many tactical boots have nylon in their construction. Again silk will be a superior material because of its lightness and strength.
Where the military goes, our police and firefighters will quickly follow. That, of course, will bring along a huge market in tactical gear.
None of this even touches the technical market. My guess is that KBLB easily sell all the silk they can make, and more.