
About this product
weber.tec EP mortar is available as a three-component bulk pack or as a two-component handy pack, consisting of epoxy resin, hardener and selected graded aggregates (filler) which when mixed produce a high strength, impermeable and chemically resistant mortar.
weber.tec EP mortar has negligible shrinkage characteristics plus high adhesion, therefore making the product ideal for all types of concrete repair including repairs to:
- Precast units,
- Spalled and cracked concrete structures,
- Floors and other substrates where chemical resistance and/or impermeability to water, oil, petrol and many chemicals is required.
weber.tec EP mortar can also be used for the bedding-in of
- Beams,
- Runway lights
- Bearings including bridge bearings
Features and Benefits
- Fast epoxy repair - stronger than concrete in less than 24 hours
- High strength - 2 to 3 times stronger than normal concrete.
- Impermeable to water, oil, petrol, chemical spillage.
- Easy to mix and apply.
Technical data

Chemical Resistance
All at 20°C
|
Petrol and Oil |
Excellent |
|
Sugar Solution |
Excellent |
|
Sulphuric Acid |
25% Very good |
|
Nitric Acid |
10% Good |
|
Hydrochloric Acid |
10% Good |
|
Lactic Acid |
10% Very good |
|
Acetic Acid |
5% Good |
|
Citric Acid |
10% Excellent |
|
Tartaric Acid |
10% Excellent |
|
Sodium Hydroxide |
50% Excellent |
Preparation
As with all concrete repairs it is essential to remove all grease, oil, dust and other loose materials.
Concrete
Concrete substrates must be adequately prepared either by use of a suitable mechanical method such as scabbling, grit blasting or needle gunning, or by such other means as appropriate. Concrete bases for toppings must be carefully prepared to give a clean freshly exposed sound roughened surface.
Old concrete surfaces contaminated with oil or grease require suitable preparation such as steam cleaning in conjunction with a suitable detergent.
Care must be taken to ensure that the oil or grease is removed from the surface and not simply spread over a larger area.
Steel substrates
Steel substrates should first be grit blasted to BS 7079-A1 equivalent to Swedish Standard Specification SA 2 1/2, followed by degreasing with a suitable solvent (e.g. weber.tec solvent 3) immediately prior to bonding. However, in many instances where corrosion is absent, wire brushing to a clean bright surface may be adequate, but care must be taken not to just polish the rust on the surface.
Priming
The bond of weber.tec EP mortar will be improved by the application of a bond coat of weber.tec Ep tackcoatcoat or bonding aid, both of which are moisture-tolerant primers.
In all cases the weber.tec EP mortar must be applied whilst the primer coat is still tacky.
When applying weber.tec EP mortar to vertical surfaces, weber.tec EP bonding aid should be used as the bond coat.
Mixing
For the large packs, the resin and hardener should first be thoroughly mixed to an even colour and consistency before adding the filler. The quantity of the filler may be adjusted to achieve a less viscous consistency, but should never be less than the amount detailed on the packaging.
The small packs have filler is included in resin and hardner components.
Application
The mortar should be applied using a steel trowel in layers of up to 20 mm thick.
Allow initial set (6 hours approximately) between layers. On vertical surfaces the maximum thickness should be 12 mm.
The mortar should be well tamped to ensure proper consolidation and then trowelled to bring up enough resin binder to thoroughly seal the surface.
Feather edging must be avoided. The edges of all repairs should be "toed in" i.e. cut back so the minimum thickness is not less than 5 mm.
weber.tec EP mortar can be applied to vertical surfaces as well as horizontal, but where higher-build layers are required on vertical surfaces or for soffit application, weber.tec EP highbuild is more suitable. In situations of high temperature variation, weber has a range of cementitious mortars, which may be more suitable to a particular application.
Cleaning
Uncured material may be removed with weber.tec solvent 3
Clean all tools etc, with weber.tec solvent 3 immediately after use.
Storage and Shelf life
The shelf life of weber.tec EP mortar is in excess of 12 months if stored in cool, dry, frost free conditions.
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 or water fog extinguishers.
For critical structural applications and applications in exposed situations where very high surface temperatures may be recorded, please contact our Technical Sales Department for further advice before use.
For further information, please request the Material Safety Data Sheet for this product
Technical services
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 demonstration can be arranged on request.
Technical Helpline
Tel: (01525) 722110
Fax: (01525) 718988
Sales Contact
weber products are ditributed throughout the UK through selected stockists and distributors. For UK sales enquiries and overseas projects, contact weber's Sales office.
Sales Office
Tel: (01525) 722100
Fax: (01525) 718988
More Information
Packaging

weber.tec EP mortar is supplied in two pack sizes
5 kg pack - yield approximately 2·7 litres
26 kg pack - yield approximately 12.5 litres
The 26 kg pack is supplied as a 6-way split pack.
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