Aqueous Bitumen Emulsion

Technical Data Sheet

1.  DESCRIPTION

Antel Aqueous Bitumen Emulsion is a high quality liquid bitumen emulsion of brushable or trowelling consistency.  It dries giving a tough and resilient film that will waterproof, weatherproof and protect.  The coating has excellent adhesion properties to most building materials with more than adequate resistance to running or slumping with changes of temperature.

2.  USES

Particularly recommended for application to the following:-

·         Foundations, retaining walls and similar

·         Structures liable to be back filled.

·         Concrete columns and beams.

·         Concrete or defective asphalt roofs.

·         Iron and steel against rust and corrosion.

3.  PACKAGING        

5 litre and 25 litre non returnable plastic containers.

4.  COVERAGE

Approximately 1 m² per litre.

5.  STORAGE

Keep containers tightly closed when not in use and store in warm dry conditions.  Protect from freezing.  Keep out of reach of children.  

6.  HEALTH & SAFETY

If in contact with the eyes wash copiously with water for at least 15 minutes and obtain medical attention.  Prolonged or repeated contact with the skin can cause irritation.  Wash contaminated skin immediately with hand cleaner and soap and water.  Harmful if taken internally - seek medical attention immediately.   DO NOT INDUCE VOMITING.

Please refer to Health and Safety data sheet for complete details.

7.  PHYSICAL DATA

·         Colour - Brown, black when dry.

·         Appearance - Paste

·         Physical state - Viscous bitumenemulsions

·         Odour - Faint Bitumen

·         Flash Point - Above 200°C (dried product)

·         Solubility - Insoluble.  Dispersion in water can occur.

·         Non Flammable

·         Conditions to avoid - Temperature at or near 100°C

·         Materials to avoid - Unstable in contact with acidic, cationic materials, electrolytes.

8.  INSTRUCTIONS FOR USE

SURFACE PREPARATION

Concrete surfaces must be clean and free from all forms of contamination.  No sharp angles should be covered, cove the angles prior to application.

COVERING OF EXISTING EXPANSION JOINTS

For covering of existing expansion joints it is important that the following steps are taken.

Apply a coat of Aqueous Bitumen Emulsion 75 mm wide either side of the joint but short of the joint by 5 mm.  Bed a length of fibre glass scrim into the uncured emulsion and allow to dry.  A further coat of emulsion is then brushed over the entire treatment.  The final coatings are applied in accordance with the full specification.

FOUNDATIONS, RETAINING WALLS AND SIMILAR STRUCTURES PRIOR TO BACK FILLING.

Surfaces must be made good.  In order to achieve this it is recommended that a cementitious treatment incorporating Antel Waterproof Bonding Agent is used.  Apply two coats of Aqueous Bitumen Emulsion at the rate of 1 m² per litre coat, allowing sufficient drying time between coats.

Care must be taken to ensure that the application links up with any Damproof Courses.  Whilst the second coat is still tacky a layer of building paper should be placed in position to protect the coating during back filling.  The applied coatings must be allowed at least 48 hours to dry prior to back filling.

CONCRETE COLUMNS OR BEAMS

After preparation apply two coats of Aqueous Bitumen Emulsion at the rate of 1 m² per litre coat.  Allow the first coat to dry prior to the application of the second coat.  Whilst the second coat is still tacky it must be completely blinded with clean sharp sand.  Allow to cure and gently brush excess sand from the surface prior to the final cladding.

CONCRETE OR DEFECTIVE ASPHALT ROOFS.

(After treatment of any expansion joints as detailed earlier)

Priming - Prime the entire surface with a solution of Aqueous Bitumen Emulsion diluted with 10 parts water.  Allow to dry.

Apply the first coat of Aqueous Bitumen Emulsion at a rate of 1 m² per litre.  Whilst applying the coating a reinforcement of fibre glass scrim or rot proof hessian is laid on the wet coating and a further application of emulsion is brushed into and over the reinforcement.  Allow to dry.  Apply a second coat at the same rate and if required blind of with clean sharp sand.

PROTECTION OF IRON AND STEEL

Thoroughly prepare the surfaces to remove all traces of rust, scale or other forms of contamination.  Apply two coats of Aqueous Bitumen Emulsion at the rate of

1 m² per litre coat allowing the first coat to dry prior to the application of the second coat

SPECIAL INSTRUCTIONS

Protect from frost.

Do not apply Aqueous Bitumen Emulsion if rain is expected.  The drying time will be affected and some material may be washed into drains and watercourses.

Allow adequate drying time between coats or intercoat delamination may occur.

Apply the second coat or subsequent coats at right angles to the previously coats.  This ensures complete coverage and protection.

Clean off tools and equipment in clean water to which a small amount of detergent has been added.

Spills or splashes should be washed off immediately with clean water.  Once dried it will be necessary to use White Spirt or Turps Substitute.

Aqueous Bitumen Emulsion is a highly viscous material but may be easily brush applied.

Use as supplied - it should not be necessary to thin the emulsion prior to use.