PROBOND 1100 Epoxy paste
High-strength two-component structural epoxy paste adhesive
Non-sag structural epoxy paste for crack repair, bonding and anchoring, cracks 3 to 20 mm.
PROBOND 1100 sizes and key figures
Two-component, solvent-free epoxy paste for structural crack and void repair, bonding fresh concrete to hardened concrete, and anchoring. It is also the epoxy adhesive for EXPANDOFLEX JOINT TAPE and the capping and port paste in crack injection.
- Crack width
- 3–20 mmstructural filling and void repair · TDS p2
- Mix ratio
- 1 : 1Part A to Part B, by volume · TDS p2
- Pack
- 600 mLdual cartridge; also 10 kg and 20 kg kits · TDS p2
- Working time
- 40–45 mintypicalapprox. at 25°C; 45 minutes at 24°C · TDS p2
- Tack-free
- 3–5 htypicalat 23°C · TDS p2
- Minimum cure
- 6 htypicalat 24°C; slower when cooler · TDS p3
- Bond to concrete
- 20.1 MPatypicalto hardened concrete at 14 days · TDS p2
- Compressive
- 55.2 MPatypicalASTM D695-15 · TDS p2
- Per cartridge
- ≈ 10 mtypicalof 5 × 12 mm crack; about 4 m at 10 × 15 mm · TDS p3
From the FORSPEC data sheet, TDS-PROBOND1100 · Revision 2 · 12 November 2026. Times are at 25°C and 50% relative humidity unless the data sheet says otherwise. Typical = FORSPEC’s own typical value, not a laboratory-certified one.
PROBOND 1100 on site
More FORSPEC jobs
Where PROBOND 1100 is used
Use it for
- Structural crack repair and void filling, 3 to 20 mm wide
- Bonding freshly mixed concrete to hardened concrete
- Bedding and capping adhesive for EXPANDOFLEX JOINT TAPE
- Port setting and crack capping in epoxy injection
- Anchoring bolts and dowels
- Epoxy mortar binder and spall patching with kiln-dried aggregate
Know before you start
- Not a membrane, and not for load transfer across a movement joint
- Not for damp, wet or frosted substrates, or new concrete under 28 days old
- Not for cracks under 3 mm: use CRACKLOCK E400L (0.05–3 mm) or CRACK PRO 1200PS
- Not for contact with potable water
Its FORSPEC systems
How to apply PROBOND 1100
- 01
Prepare
Concrete at least 28 days old, clean, sound, completely dry and roughened by grinding or scarifying. Remove dust, oil and laitance, vacuum, and confirm no moisture in the crack.
- 02
Mix
Bring both parts to 21–24°C. Kits: equal parts A and B, 300–400 rpm for 2 to 3 minutes to a streak-free grey. Cartridges: shake 1 minute, rest 1 minute, purge until both parts flow, fit the nozzle.
- 03
Fill
Inject or gravity-feed into cracks 3 to 20 mm wide, keeping at least 12 mm adhesive depth in gravity-feed repairs. Fill larger voids in layers. Use backer rod or sand if loss is a risk.
- 04
Patch or anchor
Spalls: grind 13 to 16 mm deep, press the mix in and trowel flush. Anchors: part-fill the hole, insert the bolt with a slow twist, and leave unloaded for 24 to 48 hours.
- 05
Cure
Minimum cure is 6 hours at 24°C. Grind, coat or return to service only after full cure. Discard any mix that has started to gel.
A short guide from the data sheet. Read the full PROBOND 1100 TDS before you start.
Learn to install it
Hands-on FORSPEC training that covers PROBOND 1100.
Drawings for the systems it goes in
FORSPEC standard details as PDF and DXF. Each sheet is a generic detail: the specification names the products.
PROBOND 1100 questions
What crack widths is PROBOND 1100 for?
Cracks and voids from 3 mm to 20 mm wide. For cracks under 3 mm the TDS points to CRACKLOCK E400L (0.05–3 mm) or CRACK PRO 1200PS.
How much PROBOND 1100 do I need?
A 5 × 12 mm crack takes about 60 mL per metre and a 10 × 15 mm crack about 150 mL per metre. A 600 mL cartridge covers about 10 m at 5 × 12 mm (typical). Allow for nozzle purge and waste.
How long do I have to work with it?
About 40 to 45 minutes at 25°C. It is quicker when warm: 20 minutes at 40°C, and 90 minutes at 4°C. Mix only what you can place in that time.
Can I use it on damp concrete?
No. The substrate must be completely dry with no moisture in the crack or void. New concrete must be at least 28 days old.
Is PROBOND 1100 a waterproofing membrane?
No. It seals and bonds within a system but does not waterproof an area. It is the specified adhesive for installing EXPANDOFLEX JOINT TAPE.
Can it be used with drinking water?
No. PROBOND 1100 is not for use in contact with potable (drinking) water.
Used with PROBOND 1100
PROBOND 1100 TDS and SDS
Always work from the current data sheet. Every FORSPEC TDS and SDS →
Specify it. Or buy it.
Send the drawings or photos and FORSPEC comes back with the system, the details and the quantities. Or find a FORSPEC stockist for PROBOND 1100.