INSTRUCTIONS:

Use this calculator to estimate the number of pillows required to seal an opening. Enter numbers into spaces where indicated. Update calculations by clicking any-where outside this space or into the next space.

• Step 1. Enter the size of the opening in length and height in inches. To enter the dimensions in centimeters, select METRIC above. Estimate and enter the amount of the area occupied by the penetrants. Computed area of each opening is multiplied by a factor of 1.4 to allow for required compression.
• Step 2. While the Calculator utilizes percentages, you have the option of entering a hard number for the amount of pillows of any size that you would prefer to use. The percentage of the total area requirement will be calculated and displayed at right. Your totals must equal or exceed 100%.
• Step 3. Select percentages of the sizes you wish to use to seal the opening. If you have chosen a hard number for any sizes in Step 2, the percentage will be calculated and displayed here. These percentages can be adjusted up or down as desired. The results for a single opening are displayed below. Enter the number of openings to be sealed and the calculator will extend the results.

IMPORTANT NOTE: Many different combinations of pillow sizes and percentages can be used to successfully seal a particular configuration. While the larger pillow sizes are more economical, the smaller sizes are more versatile. SSB26 are universally suitable for most openings.

 

When sealing cable tray penetrations, two (2) SSB14 or SSB24’s are recommended for sealing the channel area in 4” (102 mm) deep cable trays. SSB26’s are recommended for 6” (152 mm) deep cable tray rails.