Pure epoxy chemical anchor resin engineered for fixing rebar, threaded studs and sockets into cracked and non-cracked concrete on structural construction sites.
- Solvent-free two-part pure epoxy resin, 3:1 mix ratio
- ETA Option 1 approved, CE marked, cracked and non-cracked concrete
- WRAS approved for contact with potable water
- Expansion free, close spacing and reduced edge distance
- Cures in dry, wet, flooded and diamond drilled holes
- 100 year confirmed working life
JCP Pure Epoxy Chemical Anchor Resin 385ml - Solvent-Free and WRAS Approved
Pure epoxy chemical anchor resin engineered for fixing rebar, threaded studs and sockets into cracked and non-cracked concrete on structural construction sites.
- Solvent-free two-part pure epoxy resin, 3:1 mix ratio
- ETA Option 1 approved, CE marked, cracked and non-cracked concrete
- WRAS approved for contact with potable water
- Expansion free, close spacing and reduced edge distance
- Cures in dry, wet, flooded and diamond drilled holes
- 100 year confirmed working life
- Buy 12 for £32.05 £26.71 each and save 3%
- Buy 24 for £30.58 £25.48 each and save 8%
| BULK DISCOUNT | 12 | 24 |
|---|---|---|
| Price | £26.71 £32.05 | £25.48 £30.58 |
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Log in to access trade discountsJCP Pure Epoxy Chemical Anchor Resin 385ml
Pure epoxy chemical anchor resin built for structural fixing into cracked and non-cracked concrete, solid brickwork, block and natural stone. The solvent-free two-part formulation cures reliably in dry, wet, flooded and diamond drilled holes, making it suitable for site conditions where standard resins struggle. WRAS approval confirms safe use in contact with potable water, a requirement increasingly specified on utility and water infrastructure projects.
How ETA Option 1 approval protects load-bearing fixings in cracked concrete
A resin without cracked concrete approval loses a significant proportion of its rated load the moment a structural member cracks under service loading, a normal and expected condition in reinforced concrete design. Specifying the wrong resin for that condition means the fixing is undersized for its actual working environment, creating a compliance gap that only surfaces at inspection or under load. This resin carries ETA-17/0011 approval to Option 1, the assessment route that confirms full rated performance in both cracked and non-cracked concrete, so the design resistance figures on the datasheet apply whether or not the structure has cracked.
Key Features
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Solvent-free formulation: Removes solvent-related fumes and VOC exposure on site, supporting safer installation in confined or enclosed spaces
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ETA Option 1 approval (ETA-17/0011): Confirms full rated load performance in both cracked and non-cracked concrete from C20/25 to C50/60
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WRAS approved (Listing 250855007): Certified safe for contact with potable water, suited to utility, water treatment and civil infrastructure fixings
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Expansion free anchorage: Allows fixings to sit close to edges and to each other without the splitting forces a mechanical expansion anchor creates
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All-condition curing: Performs in dry, wet, flooded and smooth diamond drilled holes without a drop in usable or load time
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100 year working life: Confirmed design life for long-term structural applications under the ETA assessment
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3:1 two-part mix ratio: Delivered pre-measured through the cartridge nozzle, removing on-site mixing errors
Who is this for
Trades and roles:
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Structural engineers
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Groundworkers and civil engineers
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Steel fixers
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Facilities and utilities contractors
Industries:
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Civil engineering
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Structural construction
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Water and utilities infrastructure
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Industrial fabrication and plant installation
Specifications
| Specification | Detail |
| Product Name | JCP Pure Epoxy Chemical Anchor Resin 385ml - Solvent-Free and WRAS Approved |
| SKU / Product Code | PUR500585 |
| Product Type | Pure Epoxy Chemical Anchor Resin |
| Cartridge Volume | 385ml |
| Mix Ratio | 3:1 (resin to hardener) |
| Solvent Content | Solvent-free |
| ETA Approval | ETA-17/0011, Option 1 (Cracked Concrete) |
| CE Marking | CE marked |
| WRAS Approval | Approved, Listing 250855007 |
| Base Materials | Concrete C20/25 to C50/60 (cracked and non-cracked), solid brickwork, concrete block, natural stone |
| Hole Conditions | Dry, wet, flooded, smooth diamond drilled |
| Expansion Behaviour | Expansion free |
| Working Life | 100 years |
| Compatible Stud Grades | Grade 8.8 zinc plated yellow passivated; Stainless Steel Grade A4/70 |
| Thread Diameter Range | M8 to M30 |
| Minimum Cartridge Temperature | +10°C |
Compatibility
| Application or condition | Status |
| Cracked concrete C20/25 to C50/60 | ✓ Compatible |
| Non-cracked concrete C20/25 to C50/60 | ✓ Compatible |
| Solid brickwork and concrete block | ✓ Compatible |
| Natural stone | ✓ Compatible |
| Dry, wet and flooded holes | ✓ Compatible |
| Smooth diamond drilled holes | ✓ Compatible |
| Contact with potable drinking water | ✓ Compatible |
| Hollow or perforated masonry | ✗ Not recommended |
| Aerated concrete blocks (AAC) | ✗ Not recommended |
| Cartridge temperatures below +10°C | ✗ Not recommended |
| Plastic, timber or non-masonry substrates | ✗ Not recommended |
Who is this for
Structural engineers and specifiers working on reinforced concrete builds where post-installed rebar, threaded studs or internal sockets need to carry rated structural load. Civil engineers and groundworkers use it on projects requiring cracked concrete performance under Eurocode design, including bridges, retaining structures and heavily reinforced slabs. Utilities and water infrastructure contractors specify it where WRAS approval is a project requirement, such as fixings near potable water mains or treatment plant.
Typical applications
- Installing post-fix rebar as starter bars into existing reinforced concrete structures
- Fixing threaded studs for structural steelwork connections including columns and guard rails
- Anchoring internal threaded sockets into concrete façades and cladding support systems
- Securing baseplates and fixings for staircases and cantilever beams
- Structural anchoring for silo installation and heavy machine mounting
- Rebar dowelling and concrete strengthening on civil engineering and bridge works
- Fixing near or within potable water infrastructure where WRAS approval is specified
- Wet, flooded or underwater hole applications on groundwork and drainage projects
How to use
Step 1: Drill the hole to the correct diameter and depth for the stud or rebar size, using the range data table to confirm minimum hole depth.
Step 2: Clean the hole by blowing and brushing in sequence: blow, brush, blow, brush, blow, to remove all drilling debris and dust.
Step 3: Attach the mixer nozzle to the cartridge and extrude the first part to waste until an even colour is achieved.
Step 4: Fill the hole from the bottom, to one third or one half full, working the nozzle out as the resin fills.
Step 5: Insert the stud or rebar by hand using a twisting motion to distribute the resin evenly around the embedment.
Step 6: Allow the resin to cure for the load time shown on the working/loading time table before attaching or loading the fixture.
Step 7: Tighten to the recommended installation torque using a torque wrench once cured.
Common mistakes
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Skipping the hole cleaning sequence: Dust left in the hole reduces bond strength significantly, even when the resin itself is correctly mixed and injected
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Loading the fixing before the load time has elapsed: Cure and load times vary sharply with temperature, from 2 hours at +35°C to +40°C up to 24 hours at minimum cartridge temperature
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Using the resin below +10°C cartridge temperature: Cure performance is not guaranteed below this threshold and installation should be postponed or the cartridge warmed first
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Specifying this resin for hollow or aerated block: This product is rated for solid concrete, brickwork and natural stone, not hollow or aerated substrates
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Overfilling the hole: Filling beyond one half full before stud insertion causes excess resin displacement and can leave voids around the embedment
Safety
Handle uncured resin with appropriate hand and eye protection, as with any two-part epoxy system. The resin is solvent-free, reducing VOC exposure compared with solvent-based alternatives, but skin contact with uncured material should still be avoided. Confirm base material strength class and crack condition against the range data before installation, since exceeding rated embedment or spacing reduces the approved load.
Maintenance
No maintenance is required once the resin has fully cured. Store unused cartridges upright in a cool, dry location away from direct sunlight, and check the manufacturer's shelf life before use on older stock. Do not attempt to reuse a cartridge once the mixer nozzle has been removed and resin has begun to cure inside it.
Frequently Asked Questions
Q: Can this resin be used in wet, flooded or underwater holes?
A: Yes. The resin is formulated to cure reliably in dry, wet, flooded and smooth diamond drilled holes without an extended cure time. This is confirmed under the ETA-17/0011 Option 1 assessment, covering both cracked and non-cracked concrete. Standard hole cleaning by blowing and brushing should still be followed before injection regardless of hole condition.
Q: What does ETA Option 1 approval actually mean?
A: ETA stands for European Technical Assessment, the certification route used for chemical anchors in the UK and Europe. Option 1 is the highest assessment tier, confirming the resin performs at its full rated load in cracked concrete, not just non-cracked concrete, which is the condition most reinforced structures experience under normal service loading. This resin holds ETA-17/0011 under Option 1, covering concrete strength classes from C20/25 to C50/60. In practice, the design resistance figures on the datasheet apply without a reduction factor for cracked sections, unlike resins only approved for non-cracked concrete.
Q: What is this resin NOT suitable for?
A: This resin is not approved for hollow or perforated masonry, or for aerated concrete blocks, where a different resin system rated for those substrates should be used instead. It should not be applied when the cartridge temperature is below +10°C, as cure performance is not guaranteed below this threshold. It is designed for masonry and concrete substrates only, not plastic, timber or other non-masonry materials.
Q: Why choose a pure epoxy resin over a polyester or vinylester system?
A: Pure epoxy resin delivers higher load capacity and full cracked concrete approval under ETA Option 1, where polyester and some vinylester systems are limited to non-cracked concrete or lower design loads. It also cures reliably in wet and flooded holes without the shrinkage some polyester systems show in damp conditions. For safety-critical structural fixings such as rebar dowelling or heavily loaded threaded studs, this makes pure epoxy the specification of choice over lower-cost alternatives.
Q: Which threaded studs and rebar sizes does this resin support?
A: The resin is tested with Grade 8.8 zinc plated yellow passivated chisel end studs and Stainless Steel Grade A4/70 chisel end and plain end studs, from M8 to M30 thread diameter. Full load data for standard, shallow and deep embedment depths is provided across cracked and non-cracked concrete for both stud grades. Always confirm hole diameter and depth against the range data table for the specific thread size before drilling.
Q: How long is the working life of this resin once installed?
A: The resin carries a confirmed 100 year working life under its ETA assessment, provided it is installed and cured according to the datasheet instructions. Cure time depends on cartridge and base material temperature, ranging from 6 minutes usable time above +35°C to 300 minutes at the minimum +10°C cartridge temperature. Once cured, no ongoing maintenance is required for the resin itself.
