DENARE WATERPROOFING TECHNOLOGIES AUSTRALIA COATINGS & SPORTS SURFACES WATER-STOP EXTERIOR FINISH Weather resistant liquid membrane used for long term waterproofing and decoration of building surfaces. DESCRIPTION: WATER-STOP EXTERIOR FINISH forms a flexible waterproof lining that is resistant to weathering for many years. Although the membrane is waterproof it allows substrate moisture to breathe reducing the possibility of blistering. WATER-STOP EXTERIOR FINISH may be applied to slightly damp walls. it is UV stable, fungal and algae resistant and is easily maintained. USES: Trafficable concrete roof deck membrane. Balconies with or without tiling. Concrete or block work walls, parapets and plywood decks. Asbestos roof encapsulation. Metal roofs, wall gutters. Facias-new and old. Concrete silos and plant room floors. PREPARATION: All surfaces shall be sound, clean, dry and free of release oils and other contaminates. Check by applying a test area. Sound painted surfaces are usually suitable after removing chalk. Roof decks should be  properly drained for long term serviceability of WATER-STOP EXTERIOR FINISH. Ponding areas deeper than 8mm should be filled and levelled. Apply a 10mm bead of Denare polyurethane sealant as a bond breaker at corner details and other penetrations. Concrete: remove any laitance or soft concrete by acid etch or water blast. Prime horizontal surfaces with Denare Primer/ Sealer applied at 8-6m²/litre. Apply a detail coat of WATER-STOP EXTERIOR FINISH to fine cracks. Cracks over 1mm to be cut out and filled with Denare polyurethane sealant, then covered with a 100mm wide strip of reinforced WATER-STOP EXTERIOR FINISH. Particle Board and Plywood: Apply a detail coat of reinforced WATER-STOP EXTERIOR FINISH to all joints filled with Denare polyurethane sealant. Fill fastening points. Only reinforce WATER-STOP EXTERIOR FINISH over joins and penetrations on AC sheeting. Compressed Fibrous Cement: prime with Denare Hydrepoxy. Apply WATER-STOP EXTERIOR FINISH  with reinforcement to all joints and cracks with Denare polyurethane sealant. Seal and fill fastening points. Galvanize/Zincalume: WATER-STOP EXTERIOR FINISH may be applied to new surfaces after degreasing. Prime heavily oxidised surfaces. Prime rusted surfaces or where exposed to a corrosive environment with Denare metal primer. Aged Water-Stop Exterior Finish: High pressure wash to remove chalk etc. prime with Denare primer/sealer then apply WATER-STOP EXTERIOR FINISH  to specified thickness. APPLICATION: WATER-STOP EXTERIOR FINISH may be applied by brush, roller or spray. Vertical surfaces should receive two coats each of 3m²/L for normal waterproofing. Horizontal surfaces, such as roof decks should receive a minimum of 3 coats with reinforcement if necessary. Reinforce WATER-STOP EXTERIOR FINISH with Denare scrim over cracks, joins and movement areas and 125gsm fibreglass elsewhere. Place the reinforcing fabric onto the wet surface of the first coat then apply a further coat and work in carefully by brush or roller to fully saturate the fibreglass. Apply a further two or more coats. Approximately 1.4lts of WATER-STOP EXTERIOR FINISH is needed per square metre. TECHNICAL DATA: Shelf Life: 2 years in sealed containers stored 20°C Colour: Grey, White & Colours to order Elongation at break: 160% approx. Density: 1.25kg/litre Moisture Vapour Transfer: 0.45g/h-m² Touch dry: 1 hour depending on thickness Recoat time: Any time after firm and dry Application temperature: Minimum 8°C, Maximum 35°C Coverage: 1m²/litre/0.5mm dry film PRECAUTIONS: Areas subject to rising damp should be first sealed with Denare Hydrepoxy 300. Protect membrane from traffic prior and during tiling. Do not allow solvents to contact WATER-STOP EXTERIOR FINISH. CLEAN UP: Uncured WATER-STOP products may be removed with water. Statements made in this bulletin are for the assistance of our customers. They are based on our experience and judgement but must not be regarded as amounting to a legal warranty or as involving any liability on our part Back to Coatings & Sports Surfaces index