Epoxy adhesive for bonding durajoint flexband membrane.
durajoint flexband adhesive is a two component, solvent free epoxy resin bedding mortar/adhesive with low slump characteristics. The product has particularly high adhesive characteristics and will cure under damp conditions.
FDA Compliance: durajoint flexband adhesive epoxy system components have been selected to be used in accordance with CFR Title 21, 175.105 regulation.
Uses
Specifically developed for bonding durajoint flexband polymer membrane to prepared concrete surfaces and itself, including potable water retaining structures. As a bedding mortar and adhesive. Repairs where non-slump characteristics are a requirement up to 10 mm thickness.
durajoint flexband adhesive can be applied in sections up to 20 mm thickness in horizontal locations and 10 mm in vertical locations in a single application without the use of formwork. Greater thickness can be achieved by the application of subsequent layers. Consult the local
a.b.e.® office for further information.
Advantages
- Early high strength and therefore minimizes down time
- High peel strengths to membrane
- Good resistance to a wide range of chemicals
- Good adhesion to damp concrete
- High solvent resistance
Surface Preparation
CAUTIONARY NOTE:
Concrete: Cleaning of the surface to be repaired is best achieved with a light sand, grit blasting, and/or scabbling to remove all loose material, contaminants such as oil, grease, corrosion products or any other deleterious materials followed by vacuuming. Any corroded, exposed steel must be cleaned in a bright finish (shot blasting) and concrete cut back behind the steel to fully expose the back of the bars. durajoint flexband membrane: Wipe surfaces prior to bonding with durajoint flexband solvent wipe and allow to dry. See data sheet`Preparation of Surfaces’.
Typical Properties of Wet Material
| Mix ratio B:A | 100:116.5 by weight |
| Density (mixed) | 1.918 |
|
Colour: Base |
Off white |
| Fire resistance | Non-flammable |
| Consistency | Each component is a heavy paste |
| Equipment clean up | abe® super brush cleaner |
Typical Properties During Application
| Pot Life | 1 – 2 hours |
| Volume Solids | 100% |
| Theoretical coverage per mm | 1m2/ litre (smooth level surface) |
| Practical cure | 24 hours |
| Full cure | 7 days |
| Application temperature range | 10 °C – 35 °C |
Typical Properties of Cured Material
| Compressive | > 80 MPa strength @ 7 days ASTM C109 |
| Flexural strength | > 7 MPa @ 7 days |
| Tensile strength | > 10 MPa(ASTM C 307) @ 7 days |
Chemical Properties of Cured Film
| Water resistance | Excellent |
| Toluene | Good |
| Ethanol | Moderate |
| 10% Acetic acid | Limited |
| 70% Sulphuric acid | 50% Sodium hydroxide |
| 50% Sodium hydroxide | Excellent |
Bonding & Priming
Priming is not normally required on well prepared porous substrates. Where steel is exposed the cleaned steel should be coated within 3 hours. Apply one full and continuous coat of abecote 384 primer and allow to dry before continuing.
Mixing
durajoint flexband adhesive is suitable for hand mixing on a flat clean surface (wear gloves). durajoint flexband adhesive components are heavy pastes and should be mixed in manageable amounts (2 L kits) to ensure homogeneity once mixed. Uniformity in colour is an indication of homogeneity. Set up prescribed amounts (do not split kit) of base and activator side by side on a clean board. Mix together by trowel or paint scraper until a streak-free, grey material results. Mixing should be continued for another 5 minutes.
Coverage
1 m2/ litre / 1 mm thickness (smooth regular surface).
Application
In the case of expansion joints or cracks, follow the method statement: durajoint flexband application process.
Note: Ensure intimate contact between adhesive and adherands during the “hardening process” by using flat sections of laminated timber as a light weight.
Limitations
Do not split the kit – use as supplied.
Do not use at temperatures below +5 °C or above 35 °C.
Cleaning of Equipment
Tools may be cleaned with abe® super brush cleaner immediately after use before the material has had time to cure.
Model Specification
Two component, solvent free epoxy resin bedding mortar adhesive with low slump characteristics. The mortar /adhesive will be durajoint flexband adhesive, a two component, solvent-free epoxy resin system applied in accordance with the recommendations of a.b.e.®
Packaging
durajoint flexband adhesive is supplied in 2 L containers.
(Product Code: 30780)
Handling & Storage
This product has a shelf life of 12 months if kept in a dry, cool place in the original packaging. In more extreme conditions, this period might be shortened.
Health & Safety
Product safety information required for safe use is not included. Before handling, read product and safety data sheets and container labels for safe use, physical and health hazard information. The safety data sheet is available from your local a.b.e.® sales representative.
Important Note
This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® endeavours to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot accept any liability for application – because a.b.e.® has no direct or continuous control over where and how a.b.e.® products are applied.
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.® has a wealth of technical and practical experience built up over the years in the company’s pursuit of excellence in building and construction
technology.