BCR PU Coating (polyurethane) ECO

HIGH PERFORMANCE ECO FRIENDLY PU LIQUID APPLIED WATERPROOFING MEMBRANE. 

BCR PU Waterproof Coating is a flexible liquid applied single-pack water based polyurethane waterproofing membrane which is fast drying and has excellent chemical resistance properties.

BCR PU Waterproof Coating may be used in the following applications:

• All types of roofs, balconies and decks
• Retaining walls and basements
• Waterproofing, repair and rust protection for gutters, troughs and tanks
• Waterproofing and protection of parapet walls and flashings
• Waterproofing of external areas such as suspended structures
• Basements, tanking & facades
• Lining faulty gutters and down-pipes
• Eliminates soldering of cracked nonferrous roof valleys and flashings
• Over-coating of old sound membrane or liquid waterproofing systems

ADVANTAGES 

• Free of tar, bitumen, solvents or any hazardous substance
• Certified under singapore green label scheme as environmentally friendly water based waterproofing membrane
• High elongation, non-blistering and uv resistant
• Fast drying characteristics
• Suitable for use in confined areas
• Can be applied on damp surface making it ideal for use as a concealed waterproofing system for terraces and rooftops
• No mixing required, easy to use single component liquid applied system (highly recommended for waterproofing high detail areas)

TYPICAL PHYSICAL PROPERTIES
Solid Content	approx. 70%
Viscosity	4000 – 6000 cP
Density	1.42
Elongation at break @ 7 days	> 300%
Tensile @ 7 days	> 1.2 MPa
Shore hardness	> 40
Water vapor transmission	> 20 g/ m2 / 24 hrs
Minimum recommended dft	0.6 mm

SURFACE PREPARATION 

All surfaces to be clean, dry, sound and free of all laitance, grease, oil or loose and flaking particles.

Concrete:

All new concrete slabs must be allowed to cure for at least 6 weeks. Old concrete must be cleaned with a strong commercial grade detergent or degreaser, then thoroughly wash off all residue with clean water. Allow the surface to dry for at least 24 hours.

Render:

Newly rendered surfaces must be allowed to cure for at least 7 days.

Lightweight Blocks: 

Prime the surfaces with acrylic primer prior to applying PU Coating.

Metal Surfaces:

All metal surfaces must be totally free of rust. Prime metal surfaces with an etch primer.

Old waterproofing (liquid or membrane): 

Any surface to be coated should be CLEAN and MECHANICALLY SOUND.

Previously painted systems must be scrubbed using copious quantities of clean water.

Conditioned bitumen surfaces 

Ageing of the bitumen yields considerable quantity of water soluble dust derived from the oxidization process of the bitumen surface.

This water soluble dust must be washed off the immediate surface by scrubbing and using copious quantities of clean water.

Cracks: 

Hairline cracks up to 1 mm wide which experience no movement, may be duly filled up with  PU Coating before applying another layer over the area to be waterproofed.

Structural cracks which experience movement must be opened up and sealed with pu sealant and a polypropylene tape securely placed over the sealed crack. PU Coating should then be applied over the area and on the tape and allowed to cure.

Drain Application: 

Treat the inside and around the drain with a separate layer of PU Coating before proceeding with the actual application of the whole surface area.

PRECAUTIONARY NOTES 

Do not allow the product to freeze.

Do not apply if the temperature is in excess of 45oC or less than 5oC.

Delay external applications when inclement weather is imminent.

Do not thin PU Coating, as it is supplied ready for use.

Ponding should be avoided at least 48 hours after the final application of PU Coating.

For the intended use of PU Coating involving unfamiliar applications/substrates, contact BCR Construction Chemicals for advice.

BONDING/PRIMING 

Use acrylic primer for priming porous, substandard or bitumen impregnated substrates or membranes. Please consult relevant technical data sheet for details.

MIXING 

Stir well before use.

APPLICATION 

All surfaces to be treated must be as clean and dry as possible.

It may be necessary to abrade areas where dirt or scale cannot be removed with a stiff broom.

Check surface for cracks, splits, flashing, coverings, etc.

PU Coating should be applied in two coats directly from the pail.

Apply 1st coat of PU Coating to the whole area and allow to cure, approx. 2-4 hours. (temperature dependent) Apply the 2nd coat in a perpendicular direction to the 1st coat.

PU Coating can be applied by brush or roller. Normally a minimum of 2 coats is required.

NOTE: Reinforcement of corners with reinforcement netting where a 90º angle or greater is encountered is advised.

COVERAGE 

Recommended for per 20 L pail:

30 – 46 m2 per coat (about 0.35mm DFT ) or 15 – 23 m2 per 2 coats.

CLEANING OF EQUIPMENT 

Tools, brushes and mixing equipment should be cleaned immediately after use and before material has set with water.

PROTECTION/MAINTENANCE ON COMPLETION 

Whilst PU Coating is designed for an extended life, it is important to apply a maintenance coat  every 5 years.

Note: Do not cover final cured system with stones or stone chippings.

MODEL SPECIFICATION 

The waterproofing/flashing system will be PU Coating, a single-pack, elastic water based PU compound applied in accordance with the recommendations of  BCR Construction Chemicals. 

PACKAGING 

20 L pail

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.®Construction Chemicals sales representative.

IMPORTANT NOTE 

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

 BCR 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.

BCR Thermo-shield

INSULATING AND WATERPROOFING COATING (IMPROVED FORMULATION).

Thermo-shield , is a single component cost effective heat shielding waterproof coating.

• Thermo-shield uses advanced insulation technology to reduce the interior temperature of buildings.
• Thermo-shield is especially formulated with fine spherical particles that minimise surface temperature on roofs & walls by reflecting a large percentage of the radiant heat energy before it penetrates the building. This lowers interior temperature and reduces energy cost for cooling the building.
• Thermo-shield is a high solids PU Coating which exhibits excellent UV resistance and elongation.
• Thermo-shield is ideal for roofs and walls in both commercial, industrial and residential buildings.
• Thermo-shield can be applied to substrates such as concrete, mortar, aluminium, steel, fibre cement, brick, wood.
• 
  
• FEATURES & BENEFITS 

• Easy to apply non-toxic & environmentally friendly.
• Reduces radiant heat in structure by a minimum of 30% (colour dependant).
• Inherent anti- fungal properties.
• Excellent U V resistance & stretch.
• Low V O C emissions.
• Combined waterproofing and insulating in one product.

SURFACE PREPARATION 

All surfaces must be free of grease, oil and dust. Very smooth surfaces should be roughened for better adhesion.

Loose rust, moss, lichens, crumbling cement, deteriorated fibre cement and degraded bituminous substances must be removed either mechanically or chemically.

Surface faults such as blisters, holes and cracks should be cleaned out, and then repaired with a flexible sealer. Small hairline cracks can be painted with Thermoshield brushed in, allow to dry, then repeat until filled or at least sealed.

Rusty metal should be cleaned by blasting or other means to suitable standard then primed with a Rust Converter. Other metals should be suitably primed or treated e.g. for new galvanising, degrease, etch or roughen surface before coating.

BONDING / PRIMING 

Adhesion to porous & friable substrates can be improved by priming with acrylic primer. This is recommended to consolidate the potentially weak surface. Sealing with acrylic primer greatly reduces this type of potential failure.

MIXING 

Stir well before use.

APPLICATION 

Thermo-shield may be applied direct to all common building substrates, i.e. concrete, mortar, aluminium, steel, cement sheet, painted surfaces and brick. Some priming may be required, depending on the surface condition. (Please consult our  technical department for further advice).

Apply two or more coats to obtain recommended total thickness by brush, roller, spread bar or airless spray gun. The ideal application temperature is between 10 – 30°C and relative humidity 30 – 80%. In rapid drying conditions, mask large areas into smaller zones to help obtain even application and appearance.

Rinse brushes, etc. ,frequently in water to prevent drying/ clogging. Keep containers closed to minimise skin formation.

In fast drying conditions, adhesion to unsealed absorbent or porous surfaces is significantly improved by acrylic primer.

COVERAGE 

Flat Roofs: 1.1m²/ litre @0.5 dry film thickness.

Pitched Roof: 1.5m² / litre @ 0.37mm dry film thickness.

Walls (smooth): 2.2m² / litre @ 250mm dry film thickness.

MODEL SPECIFICATION 

A coloured heat shielding water based coating.

The coating system will be Thermo-shield, a single pack; elastic heat shielding coating applied in accordance with the recommendations of Construction Chemicals. Results shown are typical but reflect test procedures used. Actual field performance will depend on installation methods and site conditions.

TYPICAL PHYSICAL PROPERTIES Elongation at Break 260% Tensile Strength 3.80 MPa Adhesion Strength 1.36 N/mm2 Crack Bridging Method A Method B No crack within 2 mm No crack after 10 cycles Hardness Shore A 65 Water Penetration No water penetration UV Exposure 2000 hrs No disintegration, cracks, blisters, peeling or swelling Thermal Conductivity 0.09 W/m°K Emittance 0.89* Specifications are subject to change *Average laboratory values provided as a general guide only. COLOUR  TOTAL SOLAR REFLECTANCE %  Brick Red 30.2 Grey 47.4 White 83.6

Test method to test for Total Solar Reflectance Values : C 1549 & E 903-96 

Specifications are subject to change without notification. Results shown are typical but reflect test procedures used. Actual field performance will depend on installation methods and site conditions.

PACKAGING 

5 litre and 20 litre pail

CLEANING OF EQUIPMENT 

Clean all brushes, rollers, trays, buckets & surrounding areas with clean water before the product sets.

Once setting has occurred, brush cleaner may be used.

PROTECTION / MAINTENACE ON COMPLETION 

Thermo-shield has a 5 year product performance warranty to perform to specification for a period of 5 years from completion of the application. To extend the product warranty by an additional 5 years a maintenance coat of Thermo-shield needs to applied to the original coating. Proof of purchase is required to be forwarded to Construction Chemicals to extend the 5 warranty.

NOTE: 

Do not apply Thermo-shield if rain is imminent.

HANDLING & STORAGE 

Thermo-shield has shelf life of at least 12 months when in original unopened container and stored in a cool dry place.

HEALTH & SAFETY 

The use of gloves and eye protection is advised. Always ventilate the working area well during application and drying. Avoid flames in vicinity. If material is splashed into the eye wash with copious amounts of water and seek medical attention.

IMPORTANT NOTE 

This data sheet is issued as a guide to the use of the product(s) concerned. Whilst BCR Construction Chemicals endeavour to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot –because has no direct or continuous control over where and how  products are applied-accept any liability either directly or indirectly arising from the use of 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.

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.

BCR KRYSTALKOTE, cementitious crystallization coating.

BCR krystalkote

CEMENTICIOUS WATERPROOFING SYSTEM BY CRYSTALLIZATION. 

BCR krystalkote is a cementicious waterproofing coating which protects and waterproofs concrete structures by crystallization. The active chemicals react with moisture in the concrete resulting in a crystalline formation within the pores and capillary tracts of concrete, thus waterproofing the structure against penetration of water and other liquids from any direction. krystalkote gives a strong and lasting waterproofing protection against dampness and ground water hydrostatic pressure.

Recommended for use on interior and exterior below grade surfaces. krystalkote gives protection against concrete decay and waterborne corrosive salts.

Can be used for negative waterproofing of concrete structure and on horizontal structural slabs against hydrostatic pressure as it provides strong resistance to impact and abrasion.

Area of application 

• Basements
• Wet areas
• Tunnels
• Underground garages
• Planter boxes
• ADVANTAGES 

• Single component and easy to apply
• Can be used for positive and negative waterproofing of concrete structure
• Protection against rising dampness on ground slab

TECHNICAL DATA
Final set	< 16 hours
Flexural Strength	7 days 28 days	4.8 N/mm2  8.6 N/mm2
Compressive Strength	7 days 28 days	> 25 N/mm2 > 45 N/mm2
Adhesion strength	28 days	> 1.2 N/mm2 > 0,8 MPa
Resistant to hydrostatic pressure when applied on negative side	28 days	> 0.8 MPa
Specifications are subject to change without notification. Results shown are typical but reflect lest procedures used. Actual field performance will depend on installation methods and site conditions.

SURFACE PREPARATION 

The concrete surface must be clean and free from laitance, oils, grease, curing agents or other foreign matters. If surface is too smooth or highly contaminated with foreign particles, sand blast or acid etch surface before treatments.

Concrete surface must be sound. Rout out visible cracks exceeding 0.4mm wide, honeycombed pockets to depth of about 40mm and width of 25mm. Mix three parts of krystalkote to one part water by weight, until stiff mortar consistency is achieved. Prime concrete surface with one slurry coat of  krystalkote before applying the mortar mix onto area to patched, tightly sealing cavities.

krystalkote must be applied on damp substrates only to ensure maximum chemical penetration. Pre-wet substrate until damp prior to application of krystalkote. If concrete surfaces dry out before application, it must be re-wetted.

MIXING 

Mix 7.25 to 7.75 litres of clean water to 25kg krystalkote. Always mix the powder to the clean water by using a mechanical stirrer. Mix for 2 minutes until a smooth lump free consistency is achieved.

APPLICATION 

Apply a minimum of 2 coats at 90º angles to the previous coat, using a block brush or roller. The second coat must be applied while the first coat is still green but sufficiently set so that it is not drawn off while applying the second coat.

The mixed material must not be applied at a temperature below 5°C or on a frozen surface. At no instance should the total thickness exceed 5mm in a single application.

DRY SHAKE METHOD (NEGATIVE WATERPROOFING) 

Sprinkle krystalkote powder directly from the packaging after allowing concrete to achieve initial set.

Sprinkle krystalkote at the rate of 3 – 3.5 kg/m2 evenly and trowel to required finish or power float.

DRY SHAKE METHOD (POSITIVE WATERPROOFING) 

Sprinkle krystalkote powder directly from the packaging at the rate of 2kg/m2 evenly onto the lean concrete substrate just before the pouring of the concrete.

CURING 

After krystalkote coat has hardened, cure the treated surface with a light mist of clean water at regular intervals three times a day, for the initial 2 – 3 days. In extremely hot weather curing period may have to be extended to several days.

PROTECTION 

Protection of krystalkote is not obligatory. However if used on external areas, subjected to heavy rain, harsh sunlight or frost, the finished application should be protected for at least 24 hours.

PACKAGING 

25 kg bag.

SHELF LIFE 

Shelf life of 12 months stored in unopened bag in a cool dry elevated place.

COVERAGE 

For Slurry coat/ Brush application method, apply the rate of 1kg/m2 depending on the area of application.

HEALTH AND SAFETY 

 krystalkote is a cement based product and is alkaline which may cause dermatitis.

We recommend that PVC or similar gloves and safety goggles should be worn during handling.

IMPORTANT NOTE 

This data sheet is issued as a guide to the use of the product(s) concerned. Whilst BCR Construction Chemicals endeavour to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot – because it has no direct or continuous control over where and how products are applied – accept any liability either directly or indirectly arising from the use of 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. 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.