McGuire’s FlexGuard T-Joint Patches are used to seal step-offs at splice intersections. T-Joint Patches are mandatory on all 60- and 80-mil TPO systems and on 45-mil systems where step-offs have not been properly sealed. FlexGuard TPO T-Joint Patches consist of 60-mil non-reinforced TPO formed into a perfect 4.5″-diameter circle and packaged 100 pieces per carton.
Each T-Joint Patch is a perfect 4.5” diameter premolded circle.
Provides substantial labor savings compared to field fabricating.
Seals channels at splice intersections created by seam step-offs.
More consistent appearance and installation compared to field fabricated patches.
Clean the surface to be welded with Weathered Membrane Cleaner.
Use a lower temperature setting on the hand heat welder than that used for welding reinforced TPO membrane. (Typically, a setting of “6” on a scale of “10” is appropriate for welding TPO T-Joint Patches.)
Center the T-Joint Patch over the splice intersection, begin welding at the center point and work towards the outside. Use the edge of the roller to crease the T-Joint patch into membrane step-offs to achieve a proper seal.
Using a probe, check all splices for voids and cold welds only once the T-Joint Cover has completely cooled. Make any needed repairs.
Typical Properties and Characteristics
Thickness
0.060″ (1.5 mm)
Packaging
20 per carton
Color
White, gray and tan
Material
Injection-molded TPO
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