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Adhesive Technology Crackbond CSR 9oz A9-CSRHN
Adhesives Technology Crackbond CSR is a two-component, polyurethane hybrid specially designed with an ultra-low viscosity providing a quick repair of hairline cracks and spalls in concrete. Perfect for use when minimal downtime is required and rapid return-to-service is needed.
- Self-leveling, ultra-low viscosity
- Reaches over 4,500 psi compressive strength in one hour
- Repairs can be opened to traffic in less than 60 minutes at 77 °F
$359.64
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Adhesives Technology Crackbond CSR Polyurethane Crack Repair, 9oz Cartridge
Crackbond CSR from Adhesives Technology is a two-component polyurethane hybrid for rapid repair of hairline cracks and spalls in concrete. Ultra-low viscosity lets the mix wet the crack face and aggregate, then the repair can take traffic in under 60 minutes at 77°F. Typical work includes industrial floors, parking structures, and bridge decks when downtime is short. Other packs of the same material are the 22oz cartridge (A22-CSRN) and the 2 gallon kit (B2G-CSR).
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Key Features
- Ultra-low viscosity that wets hairline cracks and aggregate
- Open to traffic in under 60 minutes at 77°F
- Self-leveling for horizontal crack and spall work
- Mix with kiln-dried sand for mortar-style spall patches
- Accepts powder pigments for color matching
- 1:1 mix for cartridge or bulk placement
- Jobsite window from 0°F to 110°F
Applications
- Hairline crack repair in interior and exterior concrete
- Spall repair neat or mixed with aggregate
- Industrial floors with high traffic
- Parking structures and concrete bridge decks
- Control-joint rebuild after sawcut, before a joint filler
Technical Specifications
| Property | Value |
|---|---|
| Product | CRACKBOND CSR |
| Chemistry | Two-component polyurethane hybrid |
| Mix ratio / mixed color | 1:1 by volume; light gray |
| Mixed viscosity | 60 cP |
| Application temperature | 30 to 110°F (-1 to 43°C) |
| Working time at 75°F | 2 min |
| Full cure / traffic at 75°F | 1 hr |
| Compressive strength, 1 hr neat | 4,629 psi (ASTM D695) |
| Tensile strength, 7 day | 3,485 psi (ASTM D638) |
| Tack-free time at 75°F | < 10 min (ASTM D2377) |
| Shelf life | 12 months unopened, 40 to 90°F |
| Packaging | 8.6 fl. oz. (254 mL) cartridge A9-CSRHN, sold as 9oz, case of 12 |
Product documents: CRACKBOND CSR Technical Data Sheet (PDF) | CRACKBOND CSR Safety Data Sheet (PDF)
Frequently Asked Questions
How soon can traffic return on a Crackbond CSR repair at 77F?
Crackbond CSR repairs can be opened to traffic in less than 60 minutes at 77F. The hybrid reaches more than 4,500 psi compressive strength in one hour on the current CSR v101 sheet. That is a same-shift return-to-service number, not a next-day epoxy.
Can Crackbond CSR be used on cracks that are still moving?
No. Crackbond CSR is not intended for cracks subject to movement. Fix the cause of cracking before the repair. For a control joint that must keep 10 to 15 percent of joint-width movement, use Crackbond JF-82 FAST instead of Crackbond CSR.
Does a Crackbond CSR repair stay color-stable outdoors?
Crackbond CSR is not sold as an aesthetic finish. The current sheet warns it may pick up a greenish tint from UV or cure with swirls and marbling. Coat or paint the repair after cure if appearance matters.
What temperature window does current Crackbond CSR allow?
Current Crackbond CSR (v101) places from 0F to 110F. That is not the CSR-LPL 40F floor. Extra care is called out for cracks below grade and for placements below 32F.
Does Crackbond CSR need a dry slab?
Yes. Crackbond CSR is highly moisture-sensitive. The cementitious substrate must be completely dry before placement. Standing moisture will react with the polyurethane hybrid and can ruin the repair.
Can Crackbond CSR take pigment for a color match?
Yes. Crackbond CSR accepts powder pigments for color matching on hairline cracks and spalls. Pigment does not turn it into a moving-joint filler. Keep JF-82 FAST on tooled control joints that must move.
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