Subject: Attn: Ken Johnsen, why does the rubber cement need to be applied to both?

This is in response to an earlier question you responded to, in which 
you posed the question, "why does the rubber cement need to be applied 
to both sheets of paper?" I believe I know why.
    Rubber cement is not meant to be used on paper, it is meant to be 
used on rubber. it works based on cohesion. when the cement is applied 
to two pieces of rubber it simply "melts" both pieces until they 
become one piece, their structures are now bonded chemically. however, 
paper is not rubber. rubber cement does have some adhesive properties, 
but when it dries only the parts in contact with the paper remain. so 
because rubber cement will stick to rubber cement, when it is dry, the 
dry cement on each piece of paper holds together. 
    Common "elmers" glue works in a different way, which is far more 
effective for long lasting bonding. that glue sticks into the pores on 
the surfaces of the pieces, and holds very rigidly when it dries. that 
is why you cannot pull two glues pieces of paper apart without leaving 
some paper on the other piece. well, am I right? 

Re: Attn: Ken Johnsen, why does the rubber cement need to be applied to both?