1. Stuff fiberglass insulation into holes around plumbing fixtures or use polyurethane foam . 2. In the 1950s, polyurethane foam , a stiff, lightweight, buoyant material, was invented. 3. Some 11 pieces of polyurethane foam furniture were tested by the bureau. 4. Most modern water heaters have applied polyurethane foam ( PUF ) insulation. 5. All three couches had polyurethane foam cushions and were incinerated, investigators say. 6. Back in California, Harrison experimented with fins, and later, with polyurethane foam . 7. Additionally, amines, glycols, and phosphate present in spray polyurethane foams present risks. 8. The introduction of polyurethane foam and fiberglass became the technological leap in design. 9. Tires composed of closed-cell polyurethane foam are also made for bicycles and wheelchairs. 10. Look in your modern fridge and is has expanded polyurethane foam .
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