|The U500 adhesive is used to apply the fabric and the tapes in both System I and System VI. Thin with either MEK or Acetone.
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
I have used every brand of glue for fabric as in Ceconite, PolyTak and even (Stewarts the worst). Superflite U500 is much easier to work with and lays out better.
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Per Vendor: "On the metal airframe, prior to attaching the fabric, the glue needs to be mixed 2:1 2 parts glue to 1 part acetone. Apply two coats of this glue to the frame and let it dry completely. Then position the fabric and use a mixture of 1:2 (1 part glue to 2 parts acetone) to reactivate the glue on the frame and get the fabric to stick. This same 1:2 mixture should be used for attaching the tapes as well."
It is green.