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Waterproof Balcony Liquid Membrane Waterproof Bathroom liquid membrane Waterproof Retaining Wall Liquid Rubber Membrane How to waterproof a bathroom Waterproof Internal Wet Area Membrane Waterproof Tiled Balcony Clear Penetrating Sealer Trafficable liquid membrane UV Protection Polyurethane Membrane Waterproof Water Feature liquid membrane Hydro Pressure Resistant liquid membrane Waterproof fish pond liquid membrane waterproof bathroom liquid membrane Waterproof above screed liquid membrane UV Resistant Polyurethane Membrane Waterproof leaking balcony liquid membrane waterproof damp basement wall liquid membrane Solutions to common waterproofing problems Maxseal Foundation Latex Rubber Liquid Membrane Waterproof wet basement wall liquid membrane Injection Drill Pump Vulkem 350/345/346 Waterproof Metal Roof Liquid Membrane Repair Leaking Balcony, Flat Roof, Planter Box, Bathroom Waterproofer Waterproof Box gutter liquid membrane Waterproof Retaining Wall liquid membrane 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Waterproof Water Tanks Liquid Membrane:    link:     Waterproofing Tradesman    

 
Sikalastic 1K  

Sikalastic -1K One component cementitious mortar fibre reinforced for flexible waterproofing.Sikalastic -1K is a one component, flexible, fibre-reinforced mortar, based on cement modified with special alkali-resistant polymers. It also contains fine fillers, selected graded aggregates, plus special waterproofing additives to produce a flexible mortar that is ideal for waterproofing surfaces subject to flexural strain. Sikalastic -1K is suitable for application by brush, roller, trowel or spray equipment.  Suitable for negative pressure to 25m Can be applied on damp substrates.  Easy to apply by brush, roller, trowel or spray equipment.  Good sag resistance and easy to apply, even on vertical surfaces.  Good crack-bridging properties.  Very good adhesion on many substrates including concrete, cement mortars, stone, ceramics, bricks and timber.  Mixing ratio can be adjusted in order to obtain the consistency and workability desired for the intended application .
 
Crystoflex Max  

Crystoflex Max is a two pack, flexible, cementitious waterproof membrane designed for both positive and negative waterproofing for most building and construction substrates. Crystoflex Max comprising of a liquid component of selected polymers and a powder component of selected cements, fillers and aggregates. Crystoflex Max was formulated for demanding waterproof applications including immersed, potable water or ponding situations, positive or negative applications, resistance against hydrostatic pressure, under-tile, under-ground and other construction substrates. Crystoflex Max complies with AS/NZS 4020:2002 Testing of Products For Use In Contact With Drinking Water - Australian Water Quality Centre Report Number 4007/92.1595 and meets the 'Green Star' environmental criteria. In ponds and water features where an aesthetic appearance is required, Crystoflex Max can be top coated with Primeseal which is compatible and enhances the performance of the entire waterproofing system   .    
 
Duromastic HiBuild  
  
is a two component water based epoxy coating used to prime seal, and coat concrete and masonry surfaces. It cures to a tough chemical and water resistant coating with excellent adhesion to sound concrete. F ish ponds, Retaining walls, Reverse tanking, Primer for acrylic & polyurethane, membrane, Dust sealing concrete floors, Waterproofing concrete slabs before vinyl and timber overlays, Concrete curing membrane, Moisture barrier on damp walls/floors.
 
Crystoflex

Crystoflex is a two part waterproofing membrane comprising of a liquid component of selected polymers and a powder component of selected cements, fillers and aggregates. When mixed together to form a brushable or rollable slurry it provides a strong, hydrostatic pressure resistant, flexible waterproofing membrane with particular application in immersed or ponding situations. Crystoflex complies with AS/NZS 4020:2002 Testing of Products For Use In Contact With Drinking Water - Australian Water Quality Centre Report Number 4007/92.1595.  Crystoflex is suitable for many waterproofing applications, and is particularly useful for areas requiring hydrostatic pressure resistance and immersed applications including water retaining structures such as concrete tanks, ponds, pools, fountains and water features. Crystoflex is suitable for contact with drinking water

Maxseal Flex Cementitious Membrane

Maxseal Flex is a coating with flexible and waterproofing properties that adheres to practically every surface such as concrete, natural and artificial stone, mortar plasters, bricks, concrete blocks, etc. subjected to both positive or negative high water pressure. Waterproof coating that adheres to common substrates in construction such as concrete, natural and artificial stone, traditional mortar plasters, bricks, concrete blocks. Once applied and cured, Maxseal Felx provides a non-toxic, flexible and waterproof coating that adheres to those common substrates in construction such as concrete, natural and artificial stone, traditional mortar plasters, bricks, concrete blocks. Waterproofing and protection of water retaining structures, such as drinking water tanks, reservoirs, water mains and swimming pools. Waterproofing of below-grade structures like basements, retaining walls, foundations, tunnels, galleries subjected to both positive or negative high water pressure.  Internal and external waterproofing and protection of new and old buildings, facades against dampness, rain, pollution and aggressive environments.  Waterproofing and protection of concrete against carbonation, freeze-thaw cycles, de-icing salts in highways and chlorine penetration in public works, irrigation channels, dams, retaining walls and water treatment plants, bridges, etc.  Tile fixing and waterproofing of bathrooms, kitchens and other wet rooms in hotels, hospitals, offices and residential buildings, also suitable for exterior applications. Waterproofing of jardinieres, terraces and balconies under the pavement.   


Internal Water Tank Waterproofing

For safety reasons, solvent based liquid applied membranes and primers are best avoided. There is a potential problem with water based membranes if the tank is filled even just a little before it has fully cured, so care must be taken to ensure that this does not happen. Urethane modified acrylics such as Wrimco supplied Pondsealer are particularly suited to ponds    with curved and rounded shapes.

Wrimco Hydrostatic pressure resistant, flexible cementious liquid membrane will also give good results.
For tanks that are rectangular, the best system is torch applied Wrimco SBS supplemented by Alsan Flashing for around rungs set in the concrete. Blockwork and concrete walls do not require priming but the concrete base is normally primed with Wrimco 2-part Water Based Epoxy (WBE) since torching uses up oxygen and creates CO2, it is best done before the lid or top is installed unless there is excellent ventilation provided and proper safety procedures are followed.

Tanks buried in wet ground may need protection from negative pressures. In such cases, always prime with 2-part WBE and use two coats with blockwork because it is so porous. If permanently damp, wet substrate Epoxy should be used. If there is visible water coming through, drill or grind to open it up in order to pack in the plug. 
 
External Water Tank Waterproofing

Obviously it is not a good idea for the walls of tanks to be saturated with water as the rebar will rust and spoil the concrete, commonly called concrete cancer. So when the tank is buried, waterproof the outside same as you would do for a retaining wall and including above ground especially for porous blockwork.

Large concrete water storage tanks which are normally above ground frequently leak through cracks in the concrete. Waterproofing internally may be too difficult or too costly. In such cases, concrete injection is the answer. Holes are drilled at 45 degrees to the surface to the centre of the wall at regular intervals, hoping to intersect the crack. Special foaming urethane liquids are injected into the holes via packers using a very high pressure, positive displacement pump. The urethane reacts with the water to form a water tight foam that fills the cracked and thus stops the leaks.

 

Waterproofing FAQ

Membrane Protection Board

Waterproofing Coating

Waterproof Drainage Sheet

Waterproofing Primer

Repair and Maintenance