Pedestal Sealing Foam

RTC# 79465, RTC# 79470, RTC# 79473,

Pedestal Sealing Foam is a two-component, flexible, polyurethane foam used for filling a pedestal base with high-strength, flexible foam. The flexibility of the foam provides a continuous seal in the event of freeze-thaw cycle or any movement of the pedestal. Pedestal Sealing Foam has excellent adhesion to most surfaces and resists alkalis, dilute acids, and moisture rot. When cured, it can be easily removed to pull out cable or to open a previously sealed conduit for new cable installation. The water-blown chemistry makes the product safer to use for the installer and provides minimal waste. One 220 gm Pedestal Sealing Foam kit (79465) will give 4″ of foam in the bottom of a 6″ pedestal.

The Pedestal Sealing Foam should be applied as the last step before closing the pedestal. This will prevent movement of the cables during the foam curing process, ensuring a good seal around the cables.

Pedestal Sealing Foam comes conveniently packaged in a foil pack as a kit. The kit includes a package of Pedestal Sealing Foam, gloves, and installation instructions.

Technical Data


Use Pedestal Sealing Foam:

  • As an option to pea gravel
  • Inside the pedestal base as a barrier between soil and internal pedestal housing, per the instructions
Rainbow Number Container Ordering UOM Units/Case Case Weight Case Size
79465220 Gram KitKit127 lbs16.5" L x 12" W x 9.5" H
79470880 Gram KitKit1226 lbs16.5" L x 12" W x 6.5" H
79473440 Gram KitKit1820 lbs16.5" L x 12" W x 6.5" H
Small, lightweight packaging Reduces shipping and storage costs
Keeps moisture out Prevents corrosion
Safe CFC free, no TDI, or MOCA

Material Properties at (77 degrees F/25 degrees C)
Property: (Value)
Polyol: Green
Isocyanate: Brown
Mixed: Green
Mixing Ratio: Polyol/Isocyanate: 100/28 by weight
Polyol: 2,000 – 2,300 cps
Isocyanate: 60 – 80 cps
Mixed: 1,500 – 1,700 cps
Peak Exotherm (100g @ 25 degrees C): 65 degrees C Maximum
Cream Time @ 77 degrees F/25 degrees C: 1 minute – 1 minute 30 seconds
Gel Time @ 77 degrees F/25 degrees C: 6 – 7 minutes
Full Cure: 6 – 8 hours
Foam Density: 0.11 gm/cm3
Hardness (bun): 60-70 Shore 00
Recommended storage temperature is below 86 degrees F(30 degrees C). Shelf life is one year from date of manufacture.