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Collection: Bonding Agents & Primers

9 products
  • Ardex BR 10 ZP
    Ardex BR 10 ZP 1 Litre
    Zinc-rich, cold galvanising primer for
    Regular price
    $109.00
    Sale price
    $109.00
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  • Ardex BRP 30 EP
    Ardex BRP 30 EP 1.75 Litre Kit
    Two-component, solvent-free, high-strength, structural epoxy
    Regular price
    $129.95
    Sale price
    $129.95
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  • SikaTop 110 Epocem
    SikaTop 110 Epocem 8kg Kit
    Bonding Primer & Reinforcement Corrosion Protection
    Regular price
    $95.00
    Sale price
    $95.00
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  • Sika MonoTop 910 N
    Sika MonoTop 910 N 5kg Bag
    Bonding Primer & Reinforcement Corrosion Protection
    Regular price
    from $62.50
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    from $62.50
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  • Sikadur 32 LP
    Sikadur 32 LP 18 Litres Pail
    High-Temperature Epoxy Resin Bonding Agent 
    Regular price
    from $115.95
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    from $115.95
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  • MasterEmaco P 5000 AP
    MasterEmaco P 5000 AP 5kg Pail
    Multi-use, Bonding & Active Protective Primer  
    Regular price
    $79.00
    Sale price
    $79.00
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  • MasterEmaco P 157
    MasterEmaco P 157 20 Litres Pail
    SBR polymer based bonding and
    Regular price
    $349.00
    Sale price
    $349.00
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  • Ardex WR Primer
    Ardex WR Primer 15 Litre Pail
    Performance enhancing primer and additive
    Regular price
    $127.00
    Sale price
    $127.00
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  • MasterEmaco 2525
    MasterEmaco 2525 2.0 Litre Kit
    Solvent-free Epoxy Binder & Structural Adhesive
    Regular price
    from $159.00
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    from $159.00
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Bonding Agents and Primers

Bonding agents and primers are used to seal concrete surfaces and develop a bond line for coatings or toppings to bond to the substrate. 

Concrete substrates are often fairly rough with numerous imperfections. When applying thin layer protective coatings such as polyurethanes or epoxies or even self-levelling compounds, air pockets can be trapped between the coating and the imperfections in the substrate. As the material cures, the air escapes through the uncured material creating pinholes in the coating. These pinholes create structural weaknesses that can significantly reduce the lifespan and integrity of the coating. Priming performs an integral role in closing off these imperfections in the substrate to ensure a consistent monolithic coating. 

The other reason why priming plays such an important role, is that when many cementitious materials are applied on top of or adjacent to an existing substrate, the new material will sit as a separate layer instead of being bonded to the substrate. Cementitious materials are not the best natural bonding agents, meaning repair methods that do not use sufficient priming techniques will not produce a strong, long-lasting repair.

Bonding agents and primers solve this issue, as these products benefit both the liquid and solid phase of the application. Furthermore, the primer or agent will increase the wettability of the top coat, making the substance easier to spread. Bonding agents are crucial for concrete repairs and protective coatings and can make a major difference to the end result, especially important for high traffic areas or demanding environments. 

Komerco stocks industry-leading, high quality brands used in the concrete repair and protection industry. These include Sika, Ardex, Master Builders Solutions, Parchem, Mapei and many more. If you’d like to find out more about bonding agents and primers, contact our team today.