Internal tanking
StarFix TANKING can be used as a waterproofing membrane on most substrates including; concrete, felt, asphalt & bitumen, corrugated asbestos sheet, slates, tiles, brick, wood, glass, ferrous metals, lead and copper. 

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Sub-Ground Structures
StarFix TANKING can be used to waterproof and protect sub-ground structures. If the structure is to be back filled, the coating thickness must be thick enough to resist penetration of sharp aggregates and scrim reinforcement is recommended.

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Access Flooring & Data centres
StarFix TANKING can be used to waterproof and protect surfaces under access flooring and is commonly used to protect data centres and electrical equipment from sprinkler systems and other areas of potential water damage. StarFix TANKING should not be used to line ponds, swimming pools or domestic and potable water systems.

 

Proper preparation must be carried out to ensure that the substrate is clean, dry and free from loose and friable material. StarFix TANKING is a membrane coating, not a paint, and a higher film thickness (dft) is therefore necessary to achieve proper elastomeric performance. The minimum membrane thickness should be 1.0mm (1.3kg/m2) and this is achieved with the following considerations: -

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●    Two minimum 0.5mm applications will eliminate thin areas and pin holing, but will incur greater labour costs. 

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●     Care must be exercised to ensure that a second application takes place within 48 hrs to ensure good inter-coat              adhesion.

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●    A single minimum application of 1.0mm reduces labour costs and eliminates problems of over-coating within                   specified time limits, but care must be taken to ensure uniform film thickness and avoid pin-holing.

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Expansion Joints & Live Cracks
Joints and cracks should be over-banded as follows. Clean surrounding surfaces. Where the joint sealant does not fill the joint, pour StarFix TANKING flush with the surface. Apply a coat of StarFix TANKING and whilst wet, embed 300mm wide strips of reinforcing scrim into the membrane, overlapping where necessary and avoiding creases. Overcoat immediately, extending at least 15mm either side. Bolt heads etc. should be given 2 coats before the general application.

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Pedestals, Flashing, Valleys, Upstands etc.
StarFix TANKING is self-flashing and can be used to create upstands. In such cases the angle between the vertical and horizontal surfaces should be over-banded with 300mm scrim reinforcement. This should be embedded into the first coat as it is applied and rolled to prevent creases and bubbles. The scrim should be installed 150mm up the vertical and 150mm on the horizontal. Apply 2 coats of StarFix TANKING. Alternatively a cant strip or cover fillet can be installed at the vertical/horizontal joint in order to reduce the membrane stresses at a right angle.

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Cementitious & Porous Surfaces
Allow at least 28 days drying time for new concrete. Remove all laitance, all loose and foreign material. All friable or dusting surfaces must be cleaned back to a firm base. Any plant or fungal growth should be removed completely. The application of a fungicidal wash is recommended if growth is excessive. For internal work no primer is necessary.

Metal. For ferrous metal substrates, remove any previously applied coatings, rust and scale by mechanical means, or wire brush if rust is only superficial. Apply one or two coats of StarFix TANKING. Do not apply to deeply rusted surfaces without first treating with anti-corrosive primer. Non-ferrous surfaces such as lead, copper, brass, stainless steel and sound galvanising should be cleaned and thoroughly degreased before application of StarFix TANKING. Damaged/rusted galvanised sheet should be treated as for ferrous substrates.

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Metal Backed Flashing
New metal backed flashing strip may have residual silicone on the surface. Wash with high flash aromatic solvent. Allow to dry. Abrade the surface and apply StarFix TANKING.

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Wooden Surfaces
Remove all paint and varnish to a clean and dust-free surface and apply StarFix TANKING directly to the wood, ensuring the surface is dry. Ensure that no silicone, stearate or other water repellent treatment has been previously applied.