Our group uses MEK (methyl ethyl ketone) which is available at our local hardware store in pints, quarts and gallons with a pint usually costing about 4 dollars. It flows like water and acts very quickly. One pint should last the average modeler years. A friend who is very knowledgeable about the modelling industry says almost all plastic glue is MEK based and that styrene is added to give a less "hot" product. We are very enthusiatic about using straight MEK on styrene and highly reccomend it. Hope this helps.