The Todol DF01 Duo-Fill 400 is a professional two-part urethane foam sealant in a can with a rigid dispensing tube, sold here as a case of 15. Todol lists Duo Fill 400 among its straw foams, for sealing ducts and holes and for slowing or stopping flowing water.
Key features
- Two-component urethane aerosol foam; the parts mix in the actuator
- Rigid dispensing tube places the foam where it is needed; no dispensing gun required
- Used for sealing ducts and holes and plugging gas lines, and to keep out rodents and insects
- Stops and slows flowing water
- No shrinkage; closed-cell structure
Specifications
- Model: Todol Duo Fill 400 (store item DF01), sold as 15 cans per case
- Free rise: 600 cubic inches per can
- Color of mixed foam: light blue
- Cell structure: approximately 80% closed
- Tack-free: 1 minute at 68 F; cuttable: 3 minutes at 68 F
- Temperature stability of cured foam: -40 F to 176 F
- Thermal resistance: R-8.0 per inch (ASTM C 518)
- Actuator tubes: available in 9 inch and 24 inch lengths
Todol’s data sheet notes the product contains isocyanate and flammable components. Read and follow the label and the safety data sheet (SDS) before use.











