Mull Piping Test

Mull Piping Test
Overview
            The process for testing mull epoxy for the correct mixture.

Definitions
 
Procedure:

1. Whenever you swap mixing tips, purge the epoxy gun for 5 seconds into a designated epoxy waste area.
2. Pipe a 3” bead of epoxy onto a 6” scrap piece of nail fin.
3. Sandwich a second 6” piece of scrap nail fin to the first piece.
4. With a marker, write the current time on the nail fin piping test.
5. Once the next mull unit you are working on with that same mixing tip is finished, clip the piping test to the frames nail fin near the barcode.
6. Allow the piping test to cure with the frame in the curing rack for 2 hours.
7. Attempt to rip the piping test apart.
   1. The pipe test should be completely hardened and impossible to rip apart.
8. If the epoxy has completely hardened, and you can’t rip the pipe test apart, the mull epoxy has mixed and cured correctly.
9. If the epoxy has not completely hardened, and you can rip the pipe test apart, all mull windows mulled with that mixing tip need to be redone.