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Weber Saint-Gobain - Official website of the company

webertec EP mortar

webertec EP mortar
webertec EP mortar

Product Benefits

webertec EP mortar has negligible shrinkage characteristics, plus high adhesion, 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

webertec EP mortar can also be used for bedding

  • Beams
  • Runway lights
  • Bearings including bridge bearings

High strength epoxy resin mortar for repairs, bedding and fixing.

Product Features

About this Product

webertec EP mortar is a three-component bulk pack consisting of epoxy resin, hardener and selected graded aggregates (filler) which, when mixed, produce a high-strength, impermeable and chemically-resistant mortar.

Conforms with BS EN 1504-3.

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 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


Send or download the documents

You can either send the documents to an email address, or download it

Preparation & Application


As with all concrete repairs it is essential to remove all grease, oil, dust and other loose materials.


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. webertec solvent) 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.


The bond of webertec EP mortar will be improved by the application of a bond coat of webertec bonding aid, both of which are moisture-tolerant primers.

In all cases the webertec EP mortar must be applied whilst the primer coat is still tacky.

When applying webertec EP mortar to vertical surfaces, webertec EP bonding aid should be used as the bond coat.


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.


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.

webertec EP mortar can be applied to vertical surfaces as well as horizontal.  Weber has a range of cementitious mortars, which may be more suitable to a particular application.


Uncured material may be removed with webertec solvent.

Clean all tools etc, with webertec solvent immediately after use.

Packaging, Health & Safety


webertec EP mortar is supplied in:

26 kg pack - yield approximately 12.5 litres

The 26 kg pack is supplied as a 6-way split pack.

Storage and Shelf Life

The shelf life of webertec 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