Junction Box

SPC Method for Ensuring Optimal Junction Box Sealing Uniformity

Prior to applying adhesive, cut and position a piece of Fujifilm Prescale® film on the bottom of the junction box and apply force.

Instantaneously and permanently the film captures both the pressure distribution and magnitude that occurs between the contacting surfaces.

Final analysis: a “pressure map”

Pressure Film TypeCodeAlternative CodePressure RangeOrder Now
Ultra Extreme Low5LWUXL3100.87 – 7.3 PSI (0.06 – 0.51 kg/cm2)Order Now
Extreme LowLLLLW / 4LWXL3107.2 – 28 PSI (0.5 – 2 kg/cm2)Order Now
Ultra LowLLLWUL27028 – 85 PSI (2 – 6 kg/cm2)Order Now
Super LowLLWSL27070 – 350 PSI (5 – 25 kg/cm2)Order Now
LowLWL270350 – 1,400 PSI (25 – 100 kg/cm2)Order Now
MediumMSM2701,400 – 7,100 PSI (100 – 500 kg/cm2)Order Now
HighHSH2707,100 – 18,500 PSI (500 – 1,300 kg/cm2)Order Now
Super HighHHSSH27018,500 – 43,200 PSI (1,300 – 3,000 kg/cm2)Order Now
Physical Specifications
Operating Temperature68°F – 95°F (20°C – 35°C) much higher for brief exposure
Humidity Range20% to 90% RH
Gauge (Thickness)4 – 20 mils
Spatial ResolutionFrom 5 – 15 microns
SubstratePolyethylene Terephthalate (PET)
Accuracy± 10% visual, ± 2%
Utilizing optional optical measurement systems
Shelf Life1 Year
Cart