Structural Dry-To-Dry Epoxy Adhesive

Two component, solvent free, fine aggregate filled, thixotropic, non-slump, polyamide cured epoxy.

Uses
  • Structural bonding of precast concrete, brickwork, steel, aluminium elements to themselves and in any combination. 
  • Bonding of fibre cement and unglazed ceramic to most structural materials. Suitable where gap-filling properties as well as adhesion are required. 

Note: Bonded concrete assemblies should always be used in such a way that there is a compressive stress permanently on the bond line.

Advantages
  • Structural adhesive for most building materials. 
  • Use as a gap filler. 
  • Non-slump. 
  • High ultimate strengths. 
  • Non-shrink. 
  • Mixing control with coloured components.
Surface Preparation

The concrete surfaces must be clean, mechanically sound and dry. Surfaces must be free of dust, laitance and any foreign matter as well as cracked or loose stone. Maximum bond strength is only achieved if main aggregate of existing concrete is exposed. This may be done by scabbling, grinding, abrasive blasting or manual chipping. All cracked and loose aggregate must be removed. Steel must be degreased and abrasive blast cleaned to a minimum of Sa 2,5 on the Swedish Code of Practice SIS 055900. 

Aluminium must be abraded with medium grit emery paper and washed with abe® thinners no. 3 to degrease the surface and remove all debris of preparation. Apply adhesive as soon as possible after solvent application, to reduce re-oxidation of metal surface. 

Properties of Wet Material

Mixing ratio 

2 base: 1 activator by volume 

Density 

1.29 g/cm3 

Colour 

Base: Black Activator: White Mixed: Blue – Grey 

Flash point 

100°C 

Dilution 

Do not dilute 

Consistency 

Paste 

Toxicity 

Uncured material is toxic 

Shelf life 

2 years from date of manufacture 

Storage conditions 

Under cover in cool conditions 

Packaging 

500ml, 1L, 2L 

Properties During Application

 Application by 

Trowel or putty knife 

Application temperature 

10°C to 40°C 

Spreading rate 

1 litre/m2 @ 1mm thickness 

Recommended wet film thickness 

5mm maximum 

Volume solids 

100% 

Practical cure 

5 days 

Full cure 

14 days 

Fire resistance of wet material 

Non-flammable 

Properties of Cured Material

Toxicity 

Cured material is non-toxic 

Maximum service temperature 

60ºC 

Compressive yield strength 

75.1 MPa 

Tensile strength 

22.2 MPa 

Bond strength in concrete 

Bonded assembly fails in concrete Arizona Shear Test using +60 MPa concrete 

Colour 

Grey 

Steel/steel lap shear 

11 MPa 

Keep bond line to minimum thickness 

Chemical Properties of Cured Film

Toxicity

Non-toxic after curing

Water resistance

Excellent

Solvent resistance

Resists, aliphatic, solvents, oils, petrol, diesel, fuel 

Chemical resistance

Resists dilute inorganic acids and dilute alkalis

Design Work

Consultation with a structural engineer is imperative when the design criteria and application configurations are required subject to load calculations of the various elements that are under consideration.

Bonding / Priming

No primer required.

Mixing

Set up equal volumes of base and activator side-by-side on a clean board. Do not take more than about 250 ml of each compound. Using a trowel or spatula mix thoroughly until a uniform colour is obtained. Mechanical mixing may be carried out using a drill at slow speed not greater than 500 rpm and a helical mixing paddle. Mix the two components together thoroughly, approximately 3 minutes, until a uniform colour is obtained.

Avoid high speed mixing as this will entrap air and impair the products performance.

Note: Ensure that all the mixing equipment and containers are clean prior to use.

Do not mix more than can be applied as per the product’s pot life.

Do not add solvents for thinning purposes, should the material stiffen up due time lapse of the pot life the material must be discarded and a fresh batch to be mixed.

Coverage

Theoretical coverage rates are provided in the “Properties During Application” table. The coverage rates may vary subject to surface profile irregularities and or porosity.

Application

Mixed dura.®fibre CFP adhesive should be pressed into place in the repair area using a small amount first to wet out the surface and then building up the required thickness. The viscosity of dura.®fibre CFP adhesive is sufficient to hold its place in soffit and on vertical face repairs. If the volume is too large to repair in one application, leave the contact surface rough to act as a key for a subsequent placing once the first one has set.

A final smooth finish may be obtained by trowelling off the surface of the still uncured dura.®fibre CFP adhesive with a water dampened steel trowel.

dura.®fibre CFP (carbon fibre plate bonding)

Apply approximately 1 mm thick layer of dura.®fibre CFP adhesive to the prepared concrete surface to enhance the bonding properties. This is followed by a layer on the cleaned ground side of the carbon fibre plate 2 mm thick tapering up to 4 mm along the centre line.

Temperature and Relative Humidity

dura.®fibre CFW system should be applied at material temperatures between 12 °C and 18 °C and ambient temperatures of 5 °C to 30 °C. Temperatures should not fall below 5 °C in the 24 hours after application. Do not apply coating if the substrate temperature is at least 3 ºC (5 ºC is better) above dew point or highly humid conditions to cause condensation.

Cleaning

Clean tools with abe® super brush cleaner while uncured and use a little of this liquid to remove any splashes on the skin. Wash finally with soap and warm water. Cured material will have to be mechanically removed.

Packaging

dura.®fibre CFP adhesive is supplied in:

2 litre kit (code: 20402002)

5 litre kit (code: 20402005)

Handling & Storage

Epoxy compounds in their uncured state are toxic and prolonged skin contact can give rise to dermatitis. When handling epoxy compounds, use should always be made of disposable gloves and barrier creams. Involuntary habits such as face starching and spectacle adjustment must be avoided. Similarly eating and smoking whilst or after working with epoxy must be avoided until the individual has washed up. This product has a shelf-life of 24 months if kept in a cool dry place.

Health & Safety

Uncured dura.®fibre CFP adhesive must be regarded as toxic. Gloves should be worn at all times and care must be taken not to ingest any of the material by eating or smoking while working with the compound. If working in a confined space, provide adequate ventilation. Cured dura.®fibre CFP adhesive is inert and non-toxic.

Important Notice

This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® Construction Chemicals endeavors to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot – because a.b.e.® has no direct or continuous control over where and how a.b.e.® products are applied – accept any liability either directly or indirectly arising from the use of a.b.e.® products, whether or not in accordance with any advice, specification, recommendation, or information given by the company.

Further Information

Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total requirements. a.b.e.® Construction Chemicals has a wealth of technical and practical experience built up over years in the company’s pursuit of excellence in building and construction technology.