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Prime Resins Prime-Flex 920 10:1 Cartridge 11248
Prime Flex 920 is a hydrophobic, single-component polyurethane in a 10:1 Quick Mix cartridge, MPN 11248, for gushing leaks and wide gaps in non-moving concrete. Kick Fast is already in the B tube, and the resin expands into a closed-cell rigid foam on contact with water.
- Closed-cell rigid foam seals gushing leaks in non-moving concrete
- Up to 29x unconfined expansion with Kick Fast already in the B tube
- Permeates loose soils to consolidate particles and raise bearing
$64.28
Availability:
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Prime Flex 920
Prime Flex 920 is a hydrophobic, single-component polyurethane in a 10:1 Quick Mix cartridge, MPN 11248, for gushing leaks and wide gaps in non-moving concrete. Kick Fast catalyst is already in the 75 ml B tube, with 750 ml of 920 in the A tube. The resin reacts with water into a closed-cell, watertight, rigid foam with up to 29x unconfined expansion. Super-low viscosity also permeates loose soils to consolidate particles.
Key Features
- Hydrophobic polyurethane is used on gushing leaks and wide gaps
- Kick Fast catalyst is already in the 75 ml B tube of the cartridge
- Closed-cell rigid foam is watertight after the water reaction
- Unconfined expansion is up to 29x at the 10% Kick Fast ratio
- Low viscosity permeates loose soils for permeation grouting
Applications
- Gushing leaks in culverts, tunnels, manholes, and storm structures
- Curtain grouting under parking decks, foundations, and basements
- Permeation grouting of loose soils at roads, seawalls, and retaining walls
Technical Specifications
| Property | Value |
|---|---|
| Chemistry | Hydrophobic polyurethane, single-component |
| Cartridge | 10:1 Quick Mix, MPN 11248 |
| Tube A / B | 750 ml 920 / 75 ml Kick Fast |
| Viscosity | 75 to 125 cP at 72 F |
| Solids | 100% |
| Unconfined expansion | 29x at 10% Kick Fast |
| Kick Fast reaction | 5 sec initial, 22 sec set at 10% |
| Tensile (confined) | 186 psi |
| Compressive (sand) | 1,650 psi |
| Shelf life | 18 months unopened |
Product documents: Prime Flex 920 Data Sheet (PDF)
Frequently Asked Questions
What leaks is Prime Flex 920 used on?
Gushing leaks and wide gaps in non-moving concrete, including culverts, tunnels, manholes, sanitary and storm structures, and corrugated metal pipe joints. It is also used for curtain grouting below grade. The hydrophobic resin expands into a closed-cell rigid foam on contact with water.
What cartridge is Prime Flex 920 on this page?
A 10:1 Quick Mix cartridge, MPN 11248. Tube A holds 750 ml of 920 and tube B holds 75 ml of Kick Fast, so the catalyst is already in the cartridge at the 10% ratio.
What expansion does Prime Flex 920 have?
Up to 29x unconfined expansion at the 10% Kick Fast ratio. Confined tensile strength is 186 psi and compressive strength with 20-30 sand is 1,650 psi. Expansion in soil is lower than the open-cup number.
What Kick Fast timing does Prime Flex 920 have in this cartridge?
At the 10% ratio already in the B tube, initial reaction is 5 seconds and set is 22 seconds at 77 F. Kick Fast is not recommended below 10%. Viscosity is 75 to 125 cP at 72 F.
What soil work is Prime Flex 920 for?
Permeation grouting of loose soils to consolidate particles and raise load-bearing capacity, including roads, seawalls, retaining walls, and sinkhole perimeters. High-strength void fill is a different foam, not this resin.
What viscosity does Prime Flex 920 have?
75 to 125 centipoise at 72 F, so the resin can enter fine gaps and soils. Solids are 100%. Shelf life is 18 months unopened between 40 F and 80 F.
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