Description
SealBoss 1640 is a closed cell, two-component, non-shrink polyurethane foam with structural properties. This MDI-based product is 100% solvent free and 100% solids.
Features
- Closed cell polyurethane foam
- Two-component non-shrink formulation
- 100% solvent free and 100% solids
- Expands up to eight times forming closed cell structure
- Offers structural strength with excellent bonding properties
Specifications
| Solids | 100% | Viscosity AB | 280-400 |
| Specific gravity | Part A: 1.2 | Part B: 1.04 | Weight per gal lb | Part A: 10.0 | Part B: 8.68 |
| Mix ratio by weight | Part A: 52 | Part B: 48 | Mix ratio by volume | 50 |
| Density | 4 lbs/ft3 | Compressive strength | 11,520 psf (80 psi) |
| Initial Reaction Time | 5 seconds to 20 seconds | Rise time minutes | 2-4 |
| Tack free time | 60 seconds to 240 seconds | Max. Expansion (unconfined) | 20 times (2000%) |
| Shrinkage | Less than 1% | Corrosiveness | Non-Corrosive |
| Appearance | Gold-Yellow Polyurethane | Resistance to Chemicals | High Resistance to Most Organic Solvents |
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