Composite Waterproofing - Waterproof Membrane

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FIBREGLASS REINFORCED POLYESTER MEMBRANE

Polyester resin is a two-part system based on an acid anhydride resin. When mixed with a peroxide catalyst, the resin undergoes a chemical reaction that causes it to harden, forming a solid, impervious shell. The resin bonds with the fibreglass mesh to create a robust, lightweight structure with enhanced strength and flexibility.

Key Benefits:

combined with fibreglass mesh reinforcement, polyester resin is a widely used material in the production of rigid, durable structures. This composite material is ideal for rapid manufacturing of fibreglass pools, yachts, tanks, and other products that demand high-performance resistance to environmental stresses.

THE WET OUT METHOD

WETTING OUT

SUBSTRATE with resin

DRESSING

SUBSTRATE WITH FIBREGLASS

WETTING OUT AND MOULDING FIBREGLASS

THE CAULK AND BED

METHOD

CAULKING FLOOR JOINTS

bedDING FIBREGLASS lineal strip INTO SEALANT,

UPTURNED lineal strip with OVERLAPPED matting REINFORCEMENT

WETTING OUT DRESSED FIBREGLASS

THIS IS A RELIABLE WATERPROOFING METHOD THAT GIVES APPLICATORS AN EVEN SURFACE AREA OF LAMINATE REINFORCEMENT

the catalysed polyester membrane exhibits rapid structural cure.

creatING fast turn around for re application at greater strength and water resistance, ultimately with a high standard of seamless waterproofing.

our bathroom floors ARE waterproofed before the shower angle water stop is installed

. . this eliminates any joint breaches that would normally occur. . .

WHEN INSTALLING MEMBRANE ON A BALCONY

MEMBRANE IS RETURNED TO THE TOP OF THE STEP ON THE INSIDE OF THE DOOR threshold TO PROVIDE AN UPTURN WITH THE DETAIL THAT CAN BE SEALED TO THE DOOR FRAME ONCE THE DOOR FRAME IS INSTALLED.

HOB TERMINATIONS BUILT WELL ABOVE THE DECK

ARE BEST REINFORCED WITH MULTIPLE LAYERS OF WATERPROOFING TO GIVE THE ULTIMATE WATER STOP ACROSS ENCLOSED BALCONIES

Waterproof flashings SEALED TO THE STRUCTURE OF DOOR FRAMES CAN BE USED TO PREVENT AND DIVERT WIND DRIVEN WATER INGRESS FROM ADJOINING CAVITY AREAS

PAINTING OVER

POLYESTER MEMBRANE

Sanding

Cleaning

Priming

Painting

Compliance with AS 4858 Waterproof Testing Standards:

Polyester resin reinforced with fibreglass mesh is capable of meeting the requirements outlined in AS 4858, which is the Australian standard for "Waterproofing of Wet Areas within Residential Buildings." This standard sets out the performance criteria for materials used in waterproofing applications to ensure long-term effectiveness and resistance to water ingress.

Waterproof Integrity: The combination of polyester resin and fibreglass mesh creates a continuous, seamless membrane that prevents water penetration, effectively meeting AS 4858's requirement for a durable, impermeable surface.
Adhesion and Bonding: The polyester resin bonds strongly to the fibreglass mesh, ensuring robust adhesion to substrates. This strong bond ensures that the membrane will maintain its waterproof integrity under both normal and extreme environmental conditions, as required by the standard.
Durability Under Test Conditions: Composite systems that use polyester resin and fibreglass mesh are subjected to rigorous testing for their ability to withstand wet conditions, prolonged exposure to water, and environmental stresses such as thermal cycling and mechanical impact—key elements of AS 4858.
Chemical Resistance: Polyester resin is chemically inert and resistant to common household cleaning agents, making it suitable for long-term exposure to water, detergents, and other substances typically found in wet areas.
Flexibility and Crack Resistance: The fibreglass mesh reinforcement provides structural flexibility, ensuring that the composite membrane can accommodate minor movements in the substrate without compromising its waterproofing performance, which is essential for compliance with AS 4858's crack-bridging criteria.

In summary, polyester resin and fibreglass mesh systems meet or exceed the waterproofing performance standards set by AS 4858 by providing a high level of durability, resistance to water penetration, and long-term performance in wet areas.

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