Wrimco Waterproofing                              Home  | Specification | Product | Project | Technical data A-Z | Contact us

Adhesive Membrane

Anti-root Membrane

Approved Applicators

Backing Rod

Drainage Cell

Drainage Sheet

Epoxy Adhesive

Epoxy Flooring

Flat Roof Membrane  

Foundation Membrane

Liquid Membrane

Membrane Protection

Product Application

Product Category

Retaining Wall

SBS Sheet Membrane

Torch on Membrane

Under Slab Membrane

Vapour Barriers

Waterproofing Primer


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 liquid 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 Polyurethane Membrane MasterSeal M210TIX Latex Rubber Liquid Membrane Waterproof wet basement wall liquid membrane Injection Drill Pump Vulkem 350/345/346 Ardex WPM 300 Epoxy - Stop Rising Damp Waterproof Metal Roof Liquid Membrane Repair Leaking Balcony, Flat Roof, Planter Box, Bathroom Waterproofer, waterproof Leaking Balcony, Flat Roof, Planter Box, Bathroom tradesman, handyman Waterproof Box gutter liquid membrane Waterproof Retaining Wall liquid membrane Waterproof Internal, External Wall Liquid Membrane Waterproof Concrete Slab Liquid Membrane Waterproof Balcony Liquid Membrane Stop Leaking Shower Liquid Membrane How to waterproof a retaining wall How to waterproof a Retaining Wall How to fix leaking fish pond Waterproof Garage Roof Liquid Rubber Membrane Waterproof water tanks for drinkable water Waterproof Leaking Roof, Gutters, Balcony, Car Park tradesman Waterproof leaking box gutters tradesman Repair Leaking Balcony, Flat Roof, Planter Box, Bathroom Waterproofer   Repair Leaking Balcony, Flat Roof, Planter Box, Bathroom Waterproofer   HiBuild Hydrastatic Water based Epoxy Hydrostatic Negative Pressure Water Based Epoxy Under tile screed bed waterproofing membrane Prevent and Fix Rising Damp Waterproofing Epoxy Waterproof exposed balcony liquid membrane Repair leaking balcony waterproof liquid membrane Waterproof Bathroom Liquid Membrane Planter Box Retaining Wall Tanking Liquid Membrane Waterproof Leaking Metal Roof Waterproofer HOw to repair leaking fish pond Waterproof Underground wall Liquid Membrane Waterproof Planter Box liquid membrane Waterproof Watertanks Cementitious Liquid Membrane Waterproof Lift Pit Liquid Membrane ARDEX WPM 001 - Undertile Waterproofing Membrane Waterproof Planter Box Root Resistant Liquid Membrane Repair Bitumen Roof Waterproofing Liquid Membrane UV Protective Polyurethane Membrane Waterproof External Brick Wall liquid membrane Waterproof Retaining Wall Liquid Membrane Waterproof Planter Box Liquid Membrane Waterproof Wet Retaining Wall Liquid Membrane Waterproof Leaking External Wall Licensed Waterproofer Emer Clad Acrylic Liquid Membrane Waterproof Planter Box, Retaining wall liquid membrane Fast Cure Elastomeric Waterproofing Membrane Systems Waterproof Leaking Swimming pool tradesman UV Resistant Acrylic Liquid Membrane How to Waterproof a Leaking Metal Box Gutter Sikalastic 560 - Repair Bitumen membrane Roof Waterproof Lift Pits Tradesmen Waterproof Leaking Kitchen Tradesmen Waterproof Leaking Internal Basement Walls tradesman Waterproof Leaking Laundry tradesman Waterproof Leaking Deck, Verandah Tradesman Waterproof Leaking Roof, Gutters, Balcony, Car Park Tradesman Repair Bitumen Roof Liquid Rubber Membrane Waterproof Besser Block Wall with Liquid Membrane Waterproof leaking bitumen roof contractors Waterproof leaking bitumen roof contractors  Waterproof Leaking Retaining Wall, Basement Wall Tradesmen
Commercial Building Sheet Membrane Concrete Roof Sheet Membrane Waterproof Deck Sheet Membrane Entertainment building Waterproofing Membrane Waterproof Government Building Sheet Membrane Waterproof Hospital Building Sheet Membrane Waterproof Landmark Building Bitumen Membrane Waterproofing Planter Box Sheet Membrane Waterproof Plywood Roof Sheet Membrane Waterproof Residential Building Sheet Membrane Waterproof Roof Bitumen Sheet Membrane Waterproof Flat Roof Sheet Membrane Waterproof Retaining Wall Sheet Membrane Terrace waterproofing Sheet Membrane Waterproof University Building Sheet Membrane Wrimco Reference Waterproof Lift Pit Sheet Membrane Waterproof Concrete Roof Sheet Membrane Tanking Sheet Membrane Systems Vaucluse Waterproofing Project  Mosman Waterproofing Project Waterproofing Palm Beach Waterproofing Dover Height Waterproofing Darling Point Waterproofing Bellevue Hill waterproofing tradesman Knowledge Base FAQ Waterproofing Product Waterproof Leaking Garage Roof tradesman Repair SBS, APP Sheet Membrane Waterproof Concrete Slab Sheet Membrane Waterproof Leaking Garage Roof Liquid Rubber Membrane Waterproof Leaking Metal Roof Liquid Rubber Membrane Waterproof Balustrade Sheet Membrane Waterproof Commercial Building Project Bitumen Sheet Membrane Closed Cell Backing Rod Repair Crack Joints Closed cell backer rod Expansion joint backing rod Backing Rod Waterproof Leaking Roof, Balcony, Box Gutter tradesman Repair Leaking underground basement wall Waterproofer Waterproof Leaking Shower, Bathroom, Wet area Tradesman Repair Leaking Deck, Planter Box Waterproofer Waterproof Leaking Fish Pond Tradesman Waterproof Rising Damp Basement Tradesmen Roofs Waterproofed with Wrimco Sheet Membrane Waterproof Retaining walls with sheet membrane Waterproof Balcony with Sheet Membrane HDPE Self Adhesive Sheet Membrane Waterproof Commercial High Rise Building Roof Contractors Waterproof Car Park Roof with sheet membrane Ardex WPM 116 Sheet Membrane Ardex WPM 150 APP Sheet Membrane ARDEX WPM 188 Garden Tanking Membrane ARDEX WPM 185 APP Sheet Membrane Ardex WPM320 Retaining Wall Sheet Membrane Waterproof Deck with torch applied Sheet Membrane ARDEX WPM612 FL TPO Fleece-Backed Roof Membrane TREMproof SBS 4000M Mineral Bituminous Membrane ARDEX WPM 1000 Weldable Waterproofing Membrane SBS Sheet Membrane Installation ARDEX WPM 3000X peel and stick membrane ARDEX WPM 750 Undertile Butynol  Waterproof Concrete Slab with Sheet Membrane ARDEX WPM 444 APP Sheet Membrane How to waterproof a Retaining wall How to waterproof a Planter Box How to waterproof a planter box How to waterproof Tiled Balcony How to waterproof a Shower  Ardex SRO 834 Waterproofing Specification Wrimco Sheet Membrane Waterproof elevator pits Sheet Membrane SBS Sheet Waterproofing Membrane How to waterproof balcony with sheet membrane Anti Root Sheet Membrane Vehicular Traffic Liquid Membrane Waterproof Planter Box with torch applied sheet membrane Waterproof Balconies Decks Podiums Prevent Rising Damp Hydro Static Epoxy How to waterproof a planter box 

UV Stable Solvent based Waterproofing Coating  :  


Multithane ATC is single pack, aliphatic polyurethane waterproofing top coat which has been formulated as a complimentary and compatible top coat for Multithane UV and Duram 195. Aliphatic technology provides greater UV protection, colour fastness and anti-chalking properties and is designed to extend the life of exposed aromatic polyurethanes. Multithane ATC forms a tough, flexible, seamless, highly UV stable, waterproof coating. Multithane ATC meets the 'Green Star' environmental criteria.


Multithane ATC is primarily formulated as a highly UV stable top coat over Multithane UV and Duram 195 to give greater long term UV protection and colour fastness thereby extending the life and performance of the waterproofing membrane.   

Suitable Surfaces

Multithane ATC have been formulated as top coat over Multithane UV and Duram 195.  


The information contained in this product data sheet is typical but does not constitute a full specification as conditions and specific requirements may vary from project to project. The instructions should be considered as a minimum requirement but the applicator or contractor must use their skill, knowledge and experience to carry out additional works as may be necessary to meet the requirements of the project. Specification for specific projects should be sought from the Company in writing.


Suitable for maintenance foot traffic and not intended as a general trafficable membrane.  

Benefits and Advantages  

Multithane ATC represents the highest standards in aliphatic polyurethane waterproofing technology and provides the following benefits and advantages:
Compatible with Multithane and Duram 195 waterproofing membranes.
Provides excellent UV protection.
Extends the life of the waterproofing membrane system.
Metts the 'Green Star' environmental criteria.
Single pack - no mixing.
Curing (usually within) 24 hours.
Permanently flexible 
Suitable for immersion in water.
Good chemical resistance.
High strength and puncture resistant.
Provides seamless membrane (no joints or laps)
Easily repaired and or maintained.
Odourless (subjective) when cured.
Formulated to provide long term protection.
Tar free- does not bleed.
Easy to apply.
Has good hydrostatic resistance.
Usually grey but can be made in other colours (minimum quantities apply)   

Precautions in Use

Risk is considered low when properly used but precautions on can, label and / or data sheets should be observed. Do not use in confined areas with poor ventilation. Uncured product is flammable.

Priming and Surface Preparation

Good preparation is essential. Surfaces must be sound, stable, dry, clean and free of dust, loose, flaking, friable material and substances that may diminish adhesion.  

As its main purpose is to be applied over cured Multithane UV and Duram 195, it can be applied as follows:
Providing the existing membranes are clean, dry and that the Mutithane ATC is being applied within 48 hours of applying the Mutithane membranes - no other preparation is required. If the existing membranes have been contaminated refer to 'TO EXISTING MEMBRANES' below.

Multithane ATC may be applied to 'aged' Multithane membranes. These surfaces should be dry, clean and free of dirt, dust and contaminants and should be suitably cleaned depending upon the type of contaminant, e.g. if oil, then clean with detergent, flushed and allowed to dry. The surface should be wiped down with Duram Solvent to 'rejuvenate' the top layer, allowed to flash off before applying the Multithane ATC.


Apply Multithane ATC to Multithane UV and Duram 195 membranes by brush, roller, broom and squeegee usually in one or two coats at the rate of 3m2 per litre per coat,  so that the minimum dry film thickness is 300 microns.  


The stated average coverage rate may vary depending upon type, condition, porosity, texture of the surface and application technique.  

Multithane ATC Top Coat: Generally, 3m2 per litre per coat.


Generally grey. Can be manufactured in some other colours but minimum quantities may apply.

Drying and Curing

Drying and curing of the product is affected by type, dryness and porosity of the surface, temperature, humidity, ventilation, climate conditions and application technique and therefore drying and curing can only be given as a guide.  

Generally Mulithane ATC is weather resistant within 6 to 8 hours with fulll cure within 24 hours.  


Keep in cool, dry place away from heat, flame, combustible material and all sources of ignition. Product contains flammable solvents. Class 3 dangerous goods must be declared prior to transportation. Available in 5 and 15 lt pails.
Self life: 6 - 12 months in unopened container but best used within 6 months. As this is a polyurethane some skinning of the product may occur. This should be cut out and removed. Balance of the product will be suitable for use.

Clean Up

Avoid spills. They are difficult to clean particularly off porous surfaces. Wet spills use a cloth and Solvent. Do not clean off carpets as it is better to allow product to cure and then shave the carpet. Equipment should be immediately cleaned with Solvent.  

Tiling, Topping or Top Coating

Generally not covered, although membrane may be covered with drainage cloth and pebbles, ensuring not to damage membrane.  

Safety & Precautions

Multithane ATC is solvent based. The use of solvent resistant gloves and goggles (against splashes) are recommended. Use in ventilated areas. If spraying, in confined areas the use of self contained breathing apparatus is recommended. If swallowed do not induce vomiting, give plenty of water to drink. Seek urgent medical advice. If in eyes, flush thoroughly with clean water, holding open lid to ensure any trapped product may be flushed away. If on skin, remove contaminated clothing and wash skin with soap and water. If inhaled, unlikely due to viscosity of the product, remove person to fresh air and apply artificial respiration if required and seek urgent medical attention. Product is flammable when wet. Keep away from all sources of ignition. Ensure adequate ventilation. Vapours may collect in low lying areas. 

For full safety data refer to the products Material Safety Data Sheet. Observe precautions as per label. .    


Waterproofing FAQ

Membrane Protection Board

Waterproofing Coating

Waterproof Drainage Sheet

Waterproofing Primer

Repair and Maintenance