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| Term | Description |
|---|---|
| Off-ratio foam | Spray polyurethane foam (SPF) that has excess isocyanate or resin. Off-ratio SPF will not exhibit the full physical properties of correctly prepared SPF. |
| Term | Description |
|---|---|
| Off-ratio foam | Spray polyurethane foam (SPF) that has excess isocyanate or resin. Off-ratio SPF will not exhibit the full physical properties of correctly prepared SPF. |