Digital BW, The Print

I have an exhibition that starts tomorrow night that I decided to print 
on canvas.  The prints came out really well and I'm very pleased with 
them.  My dilema is that I want coat them with a waterproof 
protectorant but the kit that I bought won't do the job.  I bought the 
sample kit from PremierArt and when I applied Eco Print Shield coating 
with a satin finish by roller, the roller lifted ink off of my test 
print. Premier Art also has a spray on finish that would probably 
eliminate this problem but I don't have time to have it sent to me.  

Some of the local art stores (I live in Spokane, WA) have recommended 
Krylon Crystal Clear as an alternative.  My question is: does anyone 
have any experience with Krylon?  Also, what other alternatives are 
there? For me, the alternative has got to be something that is widely 
available as this city does not have the kinds of outlets that one 
would find in Los Angeles of New York. 

I'm using HP pigment inks on HP Artist Matte Canvas to print on.  Any 
sugestions would be appreciated.