Fujifilm Prescale Pressure Indicating Film

Fujifilm Prescale^® is a unique, affordable and easy to use tool that reveals the distribution and magnitude of surface contact pressure in your battery lamination and calendering press.

Fujifilm Prescale^® sensor film is used to measure surface contact pressure across both lamination platens and calendering rollers. Fujifilm Prescale^® reveals both pressure distribution and magnitude between these surfaces in a dramatic surface “map.”
When placed in your lamination or calendering press, the film instantaneously and permanently changes color in direct proportion to the actual pressure applied. Philosophically similar to the indication given by Litmus paper. Precise pressure magnitude is then easily determined by comparing the resultant color intensity to a standardized color correlation chart. No training or instrumentation is required.
Have you ever needed to evaluate pressure or force between two touching or mating surfaces? Previously, your only alternatives were strain gauges and load cells, that are both time consuming and difficult to interface. Now with the advent of our disposable one-time use pressure film, Fujifilm Prescale^®, evaluating surface contact pressure distribution and magnitude is accurate, quick and highly economical.

Benefits

• Correct uneven lamination.
• Minimize delamination during battery discharge.
• Minimize poor contact between the electrodes and their current collectors.
• Quickly observe and correct uneven thicknesses.

Pressure Film Type	Pressure Range
Extreme Low (LLLLW / 4LW)	7.2 - 28 PSI (0.5 - 2 kg/cm²)
Ultra Low (LLLW)	28 - 85 PSI (2 - 6 kg/cm²)
Super Low (LLW)	70 - 350 PSI (5 - 25 kg/cm²)
Low (LW)	350 - 1,400 PSI (25 - 100 kg/cm²)
Medium (MS)	1,400 - 7,100 PSI (100 - 500 kg/cm²)
High (HS)	7,100 - 18,500 PSI (500 - 1,300 kg/cm²)
Super High (HHS)	18,500 - 43,200 PSI (1,300 - 3,000 kg/cm²)

Physical Specifications
Operating Temperature	41°F - 95°F (5°C - 35°C) much higher for brief exposure
Humidity Range	20% to 90% RH
Gauge (Thickness)	4 - 20 mils
Spatial Resolution	From 5 - 15 microns
Substrate	Polyethylene Terephthalate (PET)
Accuracy	± 10% visual, ± 2% Utilizing optional optical measurement systems
Shelf Life	2 Years

Vadim Shalyt
Sr. Application Specialist
Sensor Products Inc. USA
300 Madison Ave., Suite 100
Madison, NJ 07940
1.973.428.8985 (phone)
1.973.495.9800 (cell)
1.973.884.1699 (fax)
vshalyt@sensorprod.com

Sensor Products to Market Fuji Prescale Film

Sensor Products, Inc., a leader in the field of tactile pressure and force measurement, is pleased to announce it is offering Fuji Prescale pressure film. The film is a mylar tactile pressure indicating sensor film that instantly reveals surface pressure magnitude and distribution between contacting or impacting surfaces. When placed between the surfaces it permanently turns different shades of red, with the color intensity being directly proportional to the amount of pressure applied. Prescale pressure indicating film shows precisely how bolted joints engage and deform under stress. Pressure variations are shown by the color changes left on the film. These colors can be compared to a color calibration chart to determine the exact pressure distribution.
While no instrumentation is required, the film impression can also be digitalized through imaging. Topaq, an imaging analysis program, assigns colors to pressure values. This graphic reveals pressure variations in a bolted joint interface. The non-uniform pressure distribution may be caused by a variety of factors including dimensional irregularities, surface roughness, and uneven bolt torque.

Since it is difficult to measure the force exerted by the bolts directly, torque values are often assigned for assembly based on trial and error. Prescale speeds assembly by quickly validating and confirming sufficient bolt torque to assure uniform interfacial pressure. To adjust torque values, the film is placed at the bolted joint interface and the bolts are tightened to apply pressure. The film is then removed and reviewed to see if the pressure is uniform. Common applications include measuring the interface pressure of bolted joints, gaskets, clamps, fasteners, connectors, flanges, valves, o-rings, and welding heads, among others. Wind applications include testing the bolted joints used in turbines.

Prescale is thin and flexible, allowing it to conform to both curved and straight surfaces. It may be hand or laser cut to fit unusual shapes and dimensions. It is ideal for invasive and intolerant environments not accessible to conventional transducers. The film confirms FEA predictions and has widespread applicability in research, design and test; assembly and production, quality control, and maintenance. Contact Sensor Products at (973) 428-8985, vshalyt@sensorprod.com, or www.sensorprod.com.