BCR SILANE

SILANNE / SILOXANE WATER REPELLENT. 

Silane  is a one-component siloxane waterproofing solution.

Silane is designed to deposit a non-flammable, dry water-repellent film of silicones within the capillaries of porous surfaces that would otherwise discolour through moisture uptake and stain as a result of deposition of water-borne contaminants and dirt. This water-repellent film permits the substrate to ‘breathe‘. Silane will assist in stabilising lime in plaster surfaces.

ADVANTAGES 

• Brush or spray applied direct from container.
• Equally effective on new or old surfaces.
• Preserves natural colour and texture of treated material.
• Allows surface to breathe.
• Reduces the risk of efflorescence and frost spalling.
• Inhibits penetration of soot and grime.
• Reduces unsightly staining; unaffected by salt laden atmosphere.

SURFACE PREPARATION 

The surface to be treated should be clean, sound and dry. It should be free from dust, dirt, loose particles and oily or greasy deposits.

The surface should be dry to allow maximum penetration of Silane. No application should be made for at least four days after rain.

Plaster should be at least seven days old before coating and concrete should cure for at least 28 days.

BONDING/PRIMING 

No special primer required.

TYPICAL PHYSICAL PROPERTIES OF WET MATERIAL
Colour	Clear – water white
Flash point	23oC
Fire resistance	Flammable
Dilution	Do not dilute
Consistency	Low viscosity liquid
Drying time @ 25oC	Touch dry: + 1 hour Hard dry: + 24 hours Full cure: + 5 day

TYPICAL PHYSICAL PROPERTIES DURING APPLICATION
Volume solids	5%
Number of coats	2 coats
Over-coating time between coats	Minimum 2 hours

TYPICAL PHYSICAL PROPERTIES OF DRY FILM
Fire resistance of dry film	Non-flammable
Water resistance of dry film	Not suitable for immersed conditions

TYPICAL PHYSICAL PROPERTIES DURING APPLICATION
Volume solids	5%
Number of coats	2 coats
Over-coating time between coats	Minimum 2 hours

MIXING 

Stir well before use.

COVERAGE 

3 – 5 m2/L depending on porosity of substrate.

APPLICATION 

Silane should be applied by brush or through a low pressure knapsack sprayer. Application should commence from the highest point of the surface and work down the surface. Some run-down of the coating is permissible but should not exceed 250-300mm. A second coat may be given but only after at least two hours drying time between coats.

Silane is highly volatile. Avoid working in full sunshine to achieve maximum penetration. Confine activities to the shadow side of the structures.

CLEANING 

Tools, brushes and mixing equipment should be cleaned immediately after use and before material has set with brush cleaner followed by washing with soap and water.

PROTECTION ON COMPLETION 

May be over painted with a high quality PVA / acrylic coating.

TEMPERATURE AND RELATIVE HUMIDITY 

Application temperature: 5ºC to 30ºC. Do not apply if rain is imminent.

MODEL SPECIFICATION 

One-component silane siloxane water-repellent solution.

The water repellent will be Silane, a one-component, silane siloxane liquid applied in accordance with the recommendations of Construction Chemicals. The liquid will have a minimum of 5% volume solids content.

PACKAGING 

1L, 5L, 25L and 200L containers.

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 

Toxicity: Solvents are toxic Water tainting: Does not taint water Fire resistance of wet film: Flammable

Ensure working area is well ventilated during application and drying. Avoid flames in vicinity. Always wear gloves when working with the material and avoid excessive inhalation and skin contact.

If material is splashed into the eye, wash with plenty of clean water and seek medical attention.

Cured Silane is inert and harmless.

IMPORTANT NOTE 

This data sheet is issued as a guide to the use of the product(s) concerned. Whilst  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.