Test Overview
ZIP-EZ™ fasteners were independently tested to determine if they contribute to duct leakage. A 12"×12"×8' section of 16-gauge sheet metal duct was sealed with duct mastic and tested using a Minneapolis Duct Blaster with DG-700 gauge at 25Pa, 50Pa, and 100Pa — before and after fastener installation. All results confirmed visually by fog machine and smoke pencil.
Test #1 — Baseline Before Installation Flow Ring #3
Pass — Zero Leakage
25Pa No leakage detected
50Pa No leakage detected
100Pa No leakage detected
Fog machine & smoke pencil: No visible leaks at any joint or seam
7 fasteners installed through 3" duct insulation sections, spaced 12" on center.
Test #2 — After Fastener Installation Through Insulation Flow Ring #3
Pass — Zero Leakage
25Pa No leakage detected
50Pa No leakage detected
100Pa No leakage detected
Fog machine & smoke pencil: No visible leaks detected
6 additional fasteners installed directly through sheet metal, no insulation, 12" on center.
Test #3 — Fasteners Direct Through Sheet Metal Flow Ring #3
Pass — Zero Leakage
25Pa No leakage detected
50Pa No leakage detected
100Pa No leakage detected
Flow restrictor removed — 100Pa retest: No leakage measured. Coarse screw threads appear self-sealing.
3
Independent
Tests
Tests
25–50–100 Pa
Pressures
Tested
Tested
0
Leaks
Detected
Detected
100%
Pass
Rate
Rate