cutting aluminum

I have taken sheets of aluminum in brushed and bright brass color and laminated them to sheets of sintra.I was given a contact cement to laminate the two products.I then cut the letters on the table. the problem is the cement does not hold very well.I have done a few sheets and always the same result.I need to cut some aluminum letters for an interior project and inlay them.has anyone cut aluminum sheets on the talbe?What did you laminate it to if anything.The letters i am cutting are small so there has to be a backing to keep the letters in place.I normally back the sintra with sandblast stencil,but that still does not solve the laminating problems.I think i need a new backing material.Any suggestions?
thanks
Brian

 

Dennis,
I am not fimilar with Diebond??what is the thickness?have you ever used it before?
Thanks,
Brian

 

I odered a sheet of dibond it should be here tomorrow.The letters I am trying to cut are SMALL about 1 1/2 inches high.Thickness is not that important,but i do want to inlay the letters and numbers.I tried it out of my sintra-sheet aluminum lamate but the two kept seperating as usual.I am hoping the sandblast stencil is enough to hold them in place.the first few did not go so well.Thanks for the imput everybody!
Brian

 

Success!! The dibond worked great.I cut some small very clean letters with it.I used ADA applique as a backing and i held the letters rock solid.Usual problem with the pvc material.What is the trick to remove the chips.I am using a straight flute bit becuase the up cut would seperate the material i was using before.Is it speed or should i make a larger gap in the finish cut.The dibond did not melt back as bad as sintra,but still needed to be cleaned up.
I will post a pic of the sample when it is finished.
Brian