Specialised Resins, Gels and Coatings

Linings and Coatings

Our innovative range of protective resin and gel coatings provide exceptional environmental, chemical and abrasion resistance to protect the long-term structural integrity of civil infrastructure and building assets including manholes, tunnels, lift shafts, pipes, tanks, drains and basements. With superior waterproofing and anti-corrosive qualities, our specialised coatings adhere like a membrane to a wide variety of industrial substrates without splitting or cracking. These solutions can seal, strengthen and stabilise cracks, joints and cavities by creating a physical, hardwearing barrier. Mainmark also offers linings which can be inserted at great distances to cost-effectively preserve and rehabilitate pipelines. Using precise injection points, Mainmark is also able to provide culvert relining works with annulus grouting to fill the void between the new liner and old concrete and metal pipelines. This can help extend the use of the asset, or prepare it for use as a bypass or emergency supply line.

Benefits include:

• non-invasive alternatives to traditional pipe relining or coating methods
• time and cost-effective application process
• hardwearing solutions in wet or dry conditions
• reduced ongoing asset maintenance

Success Stories: Asset refurbishment

To prevent further degradation of the concrete and ensure the asset was preserved, Mainmark replaced the interior and exterior coatings of a drinking water reservoir in Queensland. The selected new coating features more than 400% elongation to allow for structural movement and cracks in the substrate, and offers high abrasion and corrosion resistance as well as exceptional adhesion, providing long-term protection.

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Mainmark also relined a series of cracked concrete culverts along the Toowoomba Bypass using corrugated metal pipes, which were inserted directly into the damaged culverts. The annulus between the corrugated pipes and the original culverts were then filled with Terefil®, a lightweight cementitious fill, which restored structural integrity to the pipeline quickly and efficiently without impacting construction timelines.

Water Mitigation and Control

Mainmark has a range of high-performance water mitigation and control solutions for all types of works, such as below-ground carparks, basements, tunnels, retaining walls, dam walls and other subterranean infrastructure, including for emergency situations. Our hydrophobic polyurethanes are fast-acting foams and gels that expand and solidify on water contact to quickly seal cracks and stop leaks. Further water control solutions are formulated to be injected into soil and rock to deliver superior ground stabilisation in wet environments. For sites requiring permanent water mitigation, cementitious grouting can be applied to consolidate weak and fractured rock. Blended and customised to suit the application, Mainmark uses products that react quickly to create a tough, highly flexible and watertight barrier, helping to maintain the integrity of the structure.

Benefits include:

• permanent waterproof seal that stops water ingress
• suitable for substrates exposed to permanent water contact
• seals voids, cracks and joints
• prevents the leak of water and pollutants.

Success Story: Basement carpark sealed

An apartment block in Sydney suffered from persistent water ingress and flooding in its basement carpark, affecting resident property and the structural integrity of the building. Addressing the cause of the issue, Mainmark applied a waterproofing resin to the cracks that had appeared and worsened over time in the concrete slab. In just one day, the treatment was successfully completed, sealing the surface to prevent future ingress and damage.

Concrete and Steel Rehabilitation

Structural remediation coatings and protection solutions help to repair concrete and steel infrastructure affected by corrosion, concrete cancer and cracking. The products Mainmark uses are engineered to site-specific requirements and have been proven to chemically bond to concrete surfaces in the most challenging environments with exceptional adhesion capabilities. A range of pure polyurea and polymer coatings permeate, fill and stabilise both large and small areas to address leaking, cracking and surface deterioration. These solutions are easy to apply, can tolerate extreme temperatures and don’t flake, peel or blister. Common uses across both civil and commercial sites include sewerage and water assets, tanks, potable water facilities, pools, ponds, bridge decks, rooftops and basements.

Benefits include:

• protection against concrete cancer and cracking
• anti-corrosion, re-profiling and strengthening
• simple and fast application process minimises downtime
• environmentally inert to suit sensitive environments
• tested and proven, including solutions approved for use in potable water environments, where required.

Success Story: Anti-corrosion solutions used to remediate freshwater treatment plant

Mainmark re-lined three filter ponds and a clarifier tank at a freshwater treatment plant using a combination of environmentally safe waterproof membrane solutions to seal and protect the concreate substrate.  An epoxy primer was first applied onto the concrete surface to protect the tanks from corrosion and chemical attack then sprayed with a waterproof polyurea membrane to mitigate cracking and flaking while providing resistance to acids, alkali and water treatment chemicals.

Other Resins

Mainmark can use a variety of tested and proven specialised engineered resins to bind weak strata and fill voids, crevices, and large cavities in civil and mining applications.

All of the materials we use are environmentally inert, cost-effective, and efficient. The products we use cure quickly, so our customers can use the treated area sooner; often as fast as 30 minutes after treatment. We work quickly to minimise downtime, keeping our customers up and running even while repair works are being carried out.