About this Product
webertec force EP bonding adhesive is a two-component epoxy resin adhesive for concrete and masonry surfaces. It is used to structurally adhere webertec force composite sheets and transfer all loads into the fibre composite.
Conforms with BS EN 1504-4.
Features and Benefits
- High initial adhesion to bond composite sheets
- Moisture tolerant, allowing work to proceed on site
- Once hardened is resistant to water, diluted acids, saline solutions and oils
- Resistant to constant and varying temperatures
- Allows transfer of stress to the individual fibres in the composite sheet
- Easy to mix and apply
weber's Customer Services Department has a team of experienced advisors available to provide on-site advice both at the specification stage and during application. Detailed specifications can be provided for specific projects or more general works. Site visits and on-site demonstrations can be arranged on request.
Tel: (01525) 722110
Fax: (01525) 718988
weber products are distributed throughout the UK through selected stockists and distributors. For UK sales enquiries and overseas projects, contact Weber's Sales office.
Tel: (01525) 722100
Fax: (01525) 718988
Material Safety Datasheet
Preparation & Application
No adhesive will develop full adhesion to the surface of the substrate without the substrate being carefully prepared. The substrate should be clean and mechanically sound to receive the primer.
When bonding webertec force composites to concrete it is important to check the tensile bond strength fctm of the concrete surface.
A high-strength concrete may have a poor quality surface with a low tensile bond strength and be unsuitable for bonding.
Minimum fctm values shall be:
1 N/mm2 webertec force carbon sheet
1 N/mm2 webertec force aramid sheet
1 N/mm2 webertec force glass sheet
Tensile bond pull-off tests shall be conducted after the surface has been prepared using light grit blasting or grinding.
Old concrete may be contaminated with oils, grease or salts and these must be removed prior to priming.
New concrete should be cured for at least 14 days using efficient curing techniques. If a spray-on curing compound has been used, this must be removed by light grit blasting prior to priming.
Once prepared, the surface shall be primed with one coat of webertec force EP primer. The bonding adhesive must be applied whilst the primer is still tacky.
Do not let the primer cure before applying the adhesive.
Use a clean, dry plastic bucket or container for mixing. Pour in the resin and slowly add the hardener component.
Alternatively mix within the tin.
Mix thoroughly to an even colour and consistency using a slow-speed drill and spiral head mixer.
Immediately after mixing, webertec force EP bonding adhesive should be applied by brush or roller to the prepared surface.
Apply to a uniform thin coat and brush into the surface. Avoid material running down the substrate.
For application of composite sheets, see individual data sheets.
Pot life and Cure timeThe effective workable time of mixed webertec force EP bonding adhesive is comparatively short when left in the mixing vessel, i.e. 20 minutes at 20°C. The pot life can be extended by pouring the mixed material into a shallow tray to dissipate the heat created during the polymerisation hardening phase
Temperature 5°C 10°C 20°C
Pot life 6 hr 3 hr 1 hr
Packaging, Health & Safety
5.5 kg pack yielding 5 litres
Coverage / Yield
2 - 3 m2/litre per coat.
Storage and Shelf Life
Shelf life is at least 12 months when kept unopened in correct storage conditions in a cool, dry area.
Health and Safety
Contains epoxy constituents. Refer to information supplied by manufacturer (see Material Safety Data Sheet).
All skin contact with epoxy resin products should be avoided. Barrier creams should be used and operatives should wear protective clothing including gloves. Working areas should be well ventilated.
The hardener content is alkaline and labelled as corrosive. The resin content is labelled as an irritant. The flash point of all components is in excess of 100°C. In the event of fire use foam, dry chemical, carbon dioxide (CO2) or water fog extinguishers.
For further information, please request the Material Safety Data Sheet for this product.
Other products in the range
Alkali-resistant glass fibre sheet for impact resistance and containment reinforcement
High-strength aramid reinforcement sheet for structural strengthening
High-performance reinforcement carbon fibre sheet for structural strengthening
Epoxy primer for webertec force composite sheets
Moisture-tolerant epoxy adhesive for structural bonding applications
High-performance carbon fibre plate reinforcement for structural strengthening