The U500 adhesive is used for attaching both the fabric and the surface tapes in the Superflite system. It is thinned using either MEK or acetone and can be applied over any of the following surfaces: powder-coated metal, appropriately treated and primed metal, appropriately treated and varnished wood, any of the Superflite fabrics and tapes.
Mixing ratios for the U500 are as follows:
Mix 2 parts U500 to 1 part MEK or acetone when coating the frame
Mix 1 part U500 to 2 parts MEK or acetone when attaching the fabric and tapes
The U500 is available in pints, quarts, and gallons.