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Pole Setting & Straightening Foam

OsmoSet® High-Density Foam

Pole foam offers many benefits over soil, including greater compressive strength, but it is especially useful for:

  • Rocky soil and dynamited or drilled pole sets that may not produce sufficient backfill material
  • Sandy or sandy loam soils with low compressive strength
  • Difficult-to-access pole sets where transporting fill dirt is not feasible

OsmoSet is a high-density, polyurethane, water-blown foam designed for setting and straightening distribution and transmission poles. Because OsmoSet foam completely encapsulates the pole, it greatly reduces preservatives leaching and soil contamination. It contains no chlorofluorocarbons (CFCs) or hydrofluorocarbons (HFCs), making it safe for both the applicator and the surrounding environment.

Installation in 4 Easy Steps

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Step 1: Pour Step 2: Mix Step 3: Fill Step 4: Set

Benefits of OsmoSet

  • Added Strength and Safety - Most soils in the U.S. have a compressive strength of approximately 28 PSI. OsmoSet foam – with a density of 5 lbs/ft3 – has a compressive strength of over 100 PSI, providing an increased safety factor over the surrounding natural soil of nearly 4:1.
  • Labor Efficiency - Using foam is less labor intensive than backfilling with soil. There is also no need for tamping, which reduces back strain and injuries.
  • Reduced Environmental Impact - OsmoSet eliminates the need to transport backfill material to the job site and reduces the potential leaching of preservation from the pole to the surrounding soil. The hydrocarbon footprint is also a benefit.
  • Reduced Costs - OsmoSet expands at a ratio of 18:1, 20% more than other foams, which means less product is required to fill the space. 
  • Easy to Store & Transport - The patented package design of OsmoSet includes Part A and B mixtures in D-shaped containers that conveniently fit with a mixer inside the mixing pail. This efficient design reduces freight and shipping costs and makes the product easy to transport and store at the job site.

Foam Comparison

  Competitive Products Osmose OsmoSet
Ease on/off lid  
Conveniently packaged*  
Expansion ratio 15:1 18:1
Efficiently packaged (for reduced freight, storage, & handling)  
Free shipping (pallet quantities)  
Compressive Strength (5lbs/ft3) 75 psi 103 psi
Tensile Strength 64-100 psi 130 psi
Reduced hydrocarbon footprint  



Product Kit Foam Yield* Weight Per Kit Kits/Pallet Part Number
OS-2.5 2.5 ft3 11 lbs 100 70-070-300-010
OS-5.0 5.0 ft3 25 lbs 64 70-070-300-020
OS 6.0 6.0 ft3 30 lbs 64 70-070-300-040
OS-7.5 7.5 ft3 35 lbs 64 70-070-300-050
OS-10.0 10.0 ft3 45 lbs 48 70-070-300-060
OS-12.5 12.5 ft3 55 lbs 48 70-070-300-070

*At density of 4.0 lbs/ft3.  Foam yield was established at 72º.  Cold weather may not yield expansion to specifications.

Each kit includes Part A & Part B mixtures, a high-speed mixer attachment, and a mixing pail. For transformer pads, ask about OsmoSet Pad Leveling Foam – a pressurized closed-cell self-curing foam that delivers the strength and support needed to safely repair utility foundations.


For more information on OsmoSet pole setting foam, please call 770.632.6700 (option 3) or email