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 .
Duromastic ACS-3
Duromastic
ACS-3 is a two-part high solids liquid / cement copolymer membrane with fibre
reinforcement. Duromastic ACS-3 cures rapidly to form a flexible waterproof
lining for showers and other wet areas as described in Australian Standard
AS3740:2004 "Waterproofing wet areas within residential buildings".
It complies with AS4858:2004 "Wet Area Membranes". ACS-3 is
particularly suitable for applications where polymer modified render will be
applied or in conditions where other water based waterproofing products have
difficulty in drying due to excessive humidity and coolness. Duromastic ACS-3
forms a waterproof lining to most building materials including reinforced
concrete, cement render, water-resistant plaster board, and compressed cement
sheeting, etc. The surface must be fixed according to manufacturer's directions
and must be clean and dry. Duromastic ACS-3 is suitable for external use on
light pedestrian trafficable decks, parapets and flashings. Top coat with
Duroarmor for UV resistance
.
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.
Duroflex Basement
Duroflex
basement is a 1 component polymer enhanced, rigid setting cementitious slurry
coat designed for a range of positive and negative waterproofing applications
over concrete and masonry surfaces. Suitable for underground structures
including retaining walls, basements walls, lift shafts, car parks, building
foundations and footings to prevent water migration through both positive and
negative faces of structures. Once cured Duroflex basement can be finished over
with paint, render and other decorative finishes.Non toxic Excellent adhesion
properties. Fast drying. Dries without cracking, low shrinkage. 1 component,
mixed on site with water, ready to use. Able to withstand positive and negative
water pressure (up to 5m head of pressure on negative side). Protects against
chlorides, sulphates, sea water, subterranean water, freeze thaw and varying pH
water. Suitable on damp concrete or green freshly laid concrete. Can be
finished over with paints, renders and other decorative finishes
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.
