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Everflex Multi-Prime Acrylic PrimerVendor:
For prep work on substrates with varying absorption rates, Everflex Multi-Prime Acrylic Primer is a single-part, water-based acrylic primer that stabilises both porous and non-porous surfaces. It is formulated to prepare substrates for the application of Everflex waterproofing membranes, self-levelling compounds, cement-based ceramic tile...- From $71.69
- From $71.69
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Everflex Primer WBPVendor:
For porous wall and floor substrates prior to tiling, levelling, or waterproofing, Everflex Primer WBP is a water-based, penetrating acrylic primer designed to seal the surface, enhance adhesion, and prevent blistering and pinholes in subsequent coatings. What it does Everflex Primer WBP penetrates porous...
- From $48.26
- From $48.26
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Everflex Polyurethane SupaprimeVendor:
Everflex Polyurethane Supaprime is a porous substrate primer for caulking, civil construction, and waterproofing. One litre covers 5 to 10 square metres depending on porosity, and its very low viscosity sinks deep into concrete, masonry, and timber to give sealants and membranes a stable,...
- $59.51
- $59.51
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Megapoxy 154Vendor:
For treating damp surfaces, masonry, and green concrete, Megapoxy 154 is a two-component water-based epoxy designed to prime, seal, and provide a moisture barrier before laying down floor finishes or secondary membranes. It cures to a matte, chemical-resistant coating that tolerates foot traffic and...- $700.00
- $700.00
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Ardex Multiprime PrimerVendor:
For porous substrates including CFC sheet, concrete, masonry, and jointing compound over plasterboard, ARDEX Multiprime prepares the surface to improve the adhesion of subsequent approved ARDEX products. This water-based liquid primer dries quickly in both internal and external applications, providing a reliable bond interface...- $301.48
- $301.48
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Gripset GP PrimerVendor:
For porous building substrates where preparation is required before waterproofing or tiling, GP Primer consolidates the surface and stabilises porosity. It forms a high-adhesion bonding key across porous materials, ensuring that Gripset waterproof membranes and tile adhesives adhere reliably without premature water loss into...- From $87.36
- From $87.36
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Gripset OP PrimerVendor:
For waterproofing and tiling installations where adhesion to metal flashings, rigid PVC leak control flanges, ceramic tiles, or smooth concrete is required, OP Primer provides a solvent-free bonding bridge. It establishes a secure grip on difficult, non-porous surfaces to prevent Gripset membranes and tile...
- From $160.32
- From $160.32
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Gripset Xpress Primer H2O Plus PrimerVendor:
To prevent waterproofing membranes and topical coatings from blistering or delaminating over damp or green concrete, Xpress Primer H2O Plus Primer forms a single-component vapour barrier that locks down residual substrate moisture. Unlike traditional epoxy vapour barriers, this water-resistant primer stops moisture without altering...
- $389.93
- $389.93
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Gripset Xpress SP PrimerVendor:
For high-adhesion priming on non-porous, dense, and smooth substrates where standard absorbing primers cannot bond, Gripset Xpress SP Primer provides a solvent-free alternative to hazardous solvent-based systems. It is formulated to enable the direct application of Gripset self-adhesive sheet and liquid membrane systems over...
- $298.34
- $298.34
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Gripset E-60 Epoxy PrimerVendor:
For damp or green concrete, masonry, and mineral substrates where residual moisture exceeds maximum allowable limits, Gripset E-60 Epoxy Primer serves as a water-based epoxy vapour barrier, moisture barrier, and high-adhesion primer. It prevents moisture penetration, rising damp, and efflorescence prior to the application...
- From $106.24
- From $106.24
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Frequently Asked Questions
What do masonry primers and prep products do?
They give repair compounds, adhesives, membranes, sealants, and coatings a clean, stable surface to stick to. Choose a primer based on your substrate, its moisture, and the product that goes on top. Not every surface needs one, and some systems need a specific type.
Which primers work on damp masonry or green concrete?
Gripset E-60, Gripset Xpress H2O Plus, and Megapoxy 154 handle moisture on damp masonry, brickwork, mineral substrates, and green concrete. Check the moisture level, substrate limits, coat build, cure time, and what you can apply over them first.
Do I need primer on every masonry surface?
No. Some surfaces need it, some do not, and some systems call for a specific prep method. Absorption and surface condition vary. Clean and check the surface, then follow the product instructions to see if priming is required.
What is the difference between porous and non-porous primers?
Porous primers like Everflex Supaprime and Gripset GP penetrate or stabilise absorbent surfaces such as brick and render. Bond-bridge products like Eco Prim Grip, Gripset OP, and Gripset Xpress SP help later materials grip dense or smooth surfaces. Match the primer to your substrate.
Can I put any primer under any masonry product?
No. The primer must work with the surface below and the product above it. A sealant primer, moisture barrier, membrane primer, and bond bridge each do different jobs. Read the product instructions for your next layer and use only a primer the system allows.
What is a bond bridge and when do I need one?
A bond bridge helps a later product grip a dense or smooth surface that stays too slick to bond. Use it on non-porous substrates or dense concrete where a porous primer will not penetrate. Check the product instructions to confirm it suits your system.