SealBoss 1640 Structural Foam

Product Description

SealBoss ® 1640 Structural Strength SlabLifterTM & Void Fill Foam is a closed cell, two-component, non-shrink polyurethane foam with  structural properties. This MDI (methylene-diphenyl-isocyanate) based product is 100% solvent free and 100% solids. The product starts to react when mixed and does not need moisture from external sources for the reaction. SealBoss ® 1640 Structural Strength SlabLifterTM expands up to eight times  forming a closed cell structure and cutting down the material consumption drastically. The cured foam offers limited structural strength combined with increase in volume and excellent bonding properties on dry and with limitations on wet surfaces. The product is not a replacement for typical epoxy injection but offers an alternative for filling larger spaces that demand limited structural strength. The compressive strength of the reacted product is typically much higher when filled with an inert mineral such as sand.

SealBoss ® 1640 Structural Strength Foam is used for polyjacking, foam jacking and voids fill applications between slabs and soil. The product acts as a waterproofing barrier and helps in regaining structural strength. The excellent combination of hardness and flexibility qualifies SealBoss ® 1640 Structural Strength SlabLifter  for use in areas where  structural strength and moderate flexibility are desired.

SealBoss ® 1640 Structural Strength SlabLifterTM is an excellent soil solidification foam which can be used to seal, lift, fill and densify soil next to and under structures such as roadways, driveways, runways, patios and other buildings by utilizing a deep grout injection process.

The expanding and compressive strength qualities of SealBoss ® 1640 Structural Strength Foam make it a price competitive alternative for the filling of large voids and ‘pockets’.  The structural strength of the foam product is highly correlated to the expansion rate and the use of inert fillers such as sand. SealBoss ® 1640 Structural Strength Foam can be applied in dry and wet areas. Additional moisture may increase the expansion. The standard mixture expands approximately six times in volume. Job site testing is recommended  to determine product suitability. To achieve most satisfying and permanent results in certain applications, a combination of SealBoss ® 1640 Structural Strength Foam with other systems of our product line may be advised.

SealBoss ® 1640 Structural Strength Foam is not designed to stop high velocity water leaks. To stop active water leaks please refer to SealBoss ® 1510 WaterStopFoam. Ask your SealBoss ® technician for details. The product is for professional use.

Installation Guidelines

SealBoss ® 1640 Structural Strength Foam is a two-component foam system. The mixing ratio is 1:1  (A:B) by volume. Condition the product to room temperature prior to use. The components need to be thoroughly mixed either in a container prior to the application or by the use of a static mix head just prior to injection. Due to the short gel time, dual-component equipment must be used for injection. In some gravity feed applications the product may be poured. The product is also available in cartridges.                                       
All equipment, pumps and hoses must be dry. Avoid moisture contact with the mixture to prevent premature reaction. If product foams while pumping, immediately shut down the machine and flush with a cleaner to avoid built up and clogging of the equipment.