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 Shower Recess liquid membrane Repair Roof Gutters liquid Membrane Waterproof Planter Box liquid membrane Waterproof Under Tiles Liquid Membrane Waterproof Water Tanks liquid membrane waterproof Flat Roof liquid membrane Waterproof fish pond liquid membrane Waterproof Swimming Pool  How to stop tiled deck leaking waterproof bathroom liquid membrane Waterproof Leaking Shower Tradesman Waterproof Leaking Balcony Liquid Membrane Waterproof Damp Basement Wall Liquid Membrane Crystoflex Max Cementetious waterproofing membrane Waterproof Under Screed Liquid Membrane Waterproof above screed liquid membrane How to waterproof a Planter Box How to waterproof a shower How to waterproof tiled balcony Waterproof Roofs with UV liquid membrane How to waterproof a metal roof Sikalastic 560 - Repair Bitumen membrane Roof How to waterproof a planter box Waterproof Flat roof liquid membrane Below Grade Membrane UV Resistant Polyurethane Membrane Waterproof leaking balcony liquid membrane waterproof damp basement wall liquid membrane Solutions to common waterproofing problems Maxseal Foundation Mapelastic Smart Membrane Polyurethane Membrane MasterSeal M210TIX Latex Rubber Liquid Membrane Waterproof wet basement wall liquid membrane Waterproof leaking Basement Tradesman Waterproof Building Contractors Waterproof Lift Pit Contractors Waterproof leaking Internal Wall tradesman Waterproof leaking deck tradesman waterproof leaking roof, gutters, balcony, car park tradesman Waterproof leaking Box Gutter Tradesmen Waterproof leaking External Wall tradesmen Waterproof Swimming Pool Contractors Waterproof Garage Roof Liquid Membrane Injection Drill Pump Vulkem 350/345/346 Ardex WPM 300 Epoxy - Stop Rising Damp Ardex WPM300 Waterproof Metal Roof Liquid Membrane Waterproof Leaking Under Tiles Liquid Membrane Repair Leaking Balcony, Flat Roof, Planter Box, Bathroom Waterproofer, waterproof Leaking Balcony, Flat Roof, Planter Box, Bathroom tradesman, handyman Waterproof exposed balcony liquid membrane Hydrostatic Pressure resistant Liquid Membrane Waterproof Box gutter liquid membrane Prevent Rising Damp Waterproofing Epoxy Waterproof leaking metal roof tradesman Waterproof Retaining Wall liquid membrane Waterproof Underground Walls liquid membrane Waterproof Internal, External Wall Liquid Membrane Waterproof Concrete Slab Liquid Membrane Waterproof Balcony Liquid Membrane Stop Leaking Shower Liquid Membrane How to repair a leaking fish pond Waterproof Wet Retaining Wall Liquid Membrane Waterproof Aluminium Roof Liquid Membrane How to waterproof a retaining wall How to waterproof a Retaining Wall Waterproof cement screed epoxy Vulkem 360NF Waterproof Car Park Liquid Membrane Waterproof Retaining Wall liquid membrane Waterproof Besser Block Wall Liquid Membrane How to fix leaking fish pond Waterproof Garage Roof Liquid Rubber Membrane Trafficable UV resistant liquid membrane Stop Basement Wall Leaking UV Resistant Polyurethane Liquid Membrane Waterproof water tanks for drinkable water Waterproof Commercial Roof, Balcony Contractors
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 Car Park Roof Sheet Membrane Waterproof Concrete Slab 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 Under Concrete Slab Waterproofing Knowledge Base FAQ Waterproofing Product Waterproof Leaking Swimming pool tradesman 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 Polyurethane Modified Acrylic Liquid Rubber Membrane Waterproof Balustrade Sheet Membrane Waterproof Commercial Building Project Bitumen Sheet Membrane Waterproofing Membrane Protection Drainage Cell Closed Cell Backing Rod Repair Crack Joints Closed cell backer rod Expansion joint backing rod Backing Rod waterproof leaking laundry tradesman Repair Leaking underground basement wall Waterproofer Waterproof leaking planter box tradesman Waterproof Leaking Shower Tradesman Waterproof Planter Box Tradesman Waterproof Leaking Box Gutter Tradesman Waterproof Leaking Balcony Tradesman Waterproof Leaking Fish Pond Tradesman Repair Construction Building Contractors

Bostik Seal N Flex 1:  

Bostik Seal N Flex 1 is a low modulus, one component, Class-A polyurethane sealant. When cured it will form a tough, flexible seal capable of cyclic expansion and compression movement of 100% (+ 50%) of the original installed joint width.

It has excellent resistance to normal weathering conditions such as rain, sunlight, snow, sleet, ozone, atmospheric contamination and pollution. This ability enables it to retain its original properties after years of exposure, refer to the CSIRO RILEM LONG- TERM SEALANT DURABILITY STUDY DBCE Doc. 97/196 (M)




Sealing joints in:


Insitu concrete & render.

Precast and tilt up panels.

Brickwork & block work.

Plasterboard face and paper lined recessed edges.

Fibre cement sheet.

Aluminium windows.

Granite, sandstone and marble.

GRC, fibreglass & most specialty panel systems





SO 11600-Class F-25LM DIN 18540 (German) and SNJF (French) approval as a low modulus external joint sealant

ASTM C.920-87 & 98 (USA) as Type S, Grade NS, Class 25, use NT, G, A, M, &O as an external joint sealant.

AS4020 Potable water

AS1157-1972 Resistance to fungal growth

Ministry of Agriculture and fisheries New Zealand (Meat, fish, Game, Poultry- All areas)




Low modulus 100 %( + 50%)

Excellent durability

One component, no mixing required

Australian made

12 standard colours

Acoustic rating

Paintable (refer limitations)

Non staining




Clean and dry all surfaces by removing foreign matter and contaminants such as laitance, oil, dust, grease, frost, water, dirt, old sealants, curing agents and any protective coating. Dust and loose particles should be vacuum cleaned. Priming of all surfaces is recommended to achieve stated performance properties.





Absorbent or porous substrates will allow a bead of water to easily soak into and wet out the surface of the substrate.

For maximum performance on porous surfaces and, in all periodically immersed and submerged applications, use Bostik N49 Primer, or one coat of Bostik MVP525 (refer to the relevant Technical Data Sheet).

Porous substrates not subject to immersion or ponded water, e.g. vertical expansion joints in concrete or masonry structures, do not require priming if clean, dry and uncontaminated.




Non-absorbent substrates will cause a bead of water to be retained on the surface of the substrate as a raised droplet. The droplet does not easily soak into the surface of the substrate.

Bostik MVP525 is recommended for non-porous or burnished/overworked concrete substrate. (refer to the Bostik MVP525 Technical Data Sheet)

Bostik N40 Primer is recommended for non-porous plastic and metal substrates E.g. UPVC outlets and pipe work: brass, copper fittings, stainless steel trays and flashings (refer to the Bostik N40 Technical data Sheet).

Prime all plastics and metallic non-porous substrates with Bostik N40 Primer using the two-cloth method described in the Bostik N40 Technical Data Sheet.




Bostik Seal-N-Flex 1 should be dispensed from either the cartridge or sausage by means of a caulking gun (available from Bostik).

Cartridge - Pierce the membrane at the top of the cartridge and screw on the nozzle. Cut nozzle to give the required angle and bead size. Place the cartridge in a Bostik applicator gun and squeeze the trigger.

Sausages, a barrel gun is required; clip the end of the sausage and place in barrel gun. Screw end cap and nozzle on to barrel gun. Using the trigger extrude the sealant, to stop depress using the catch plate.


Apply Bostik Seal N Flex 1 in a continuous bead using enough pressure to properly fill the joint. Tool off surface of sealant with an appropriate sized spatula or trowel. Apply sufficient pressure to leave a smooth, consistent surface and ensure maximum contact with the interface of the joint.




Always use backing rod for correct sealant geometry & contact with the substrate.

Prime after the installation of the backing rod.

Ensure maximum adhesion to bond face

Minimum allowable joint depth is 6mm.

Minimum allowable joint width is 5mm.

Depth to width ratio of 1:1 up to 12mm width, and 1:2 from 12 - 50mm width.

Tool sealant to achieve concave shape


COVERAGE The estimated lineal metre yield, per pack size, is recommended in the following table. No allowance has been made for waste or irregular joint geometry.



6mm x 5mm

10mm x 10mm

10mm x 20mm

300ml cartridge




600ml sausage





Calculation formula (W x D X L) / 1000 = Litres


Litres / 0 .3 = No of 300ml Ctgs

Litres / 0.6 = No of 600ml Sgs


W = Joint Width (mm)

D = Joint Depth (mm)

L= Length (metres)



Waterproofing FAQ

Membrane Protection Board

Waterproofing Coating

Waterproof Drainage Sheet

Waterproofing Primer

Repair and Maintenance