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Everflex Multi Prime Acrylic PrimerVendor:
Everflex Multi-Prime is a water-based acrylic primer for porous and selected non-porous substrates before compatible waterproofing membranes, levelling compounds, tile adhesives and grouts. It offers a practical preparation option where one job includes different surface types.Unlike Everflex WBP, which is targeted at absorbent substrates,...- From $71.90
- From $71.90
- Unit price
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Everflex Primer WBPVendor:
Everflex Primer WBP is a water-based, penetrating acrylic primer for porous concrete, screeds, cement render, brickwork and fibre-cement surfaces. It controls surface absorption and improves the bond of compatible waterproofing membranes, tile adhesives and levelling compounds.Choose WBP when the substrate is absorbent and needs...
- From $45.72
- From $45.72
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Everflex Polyurethane SupaprimeVendor:
Everflex Supaprime is a single-part, moisture-curing polyurethane primer for porous concrete, masonry, render, cement sheet and compatible timber surfaces. It helps improve adhesion before specified polyurethane, Hi-Flex MS polymer and silicone sealants, as well as selected Everflex waterproofing membranes.Choose Supaprime when porous construction materials...
- $61.22
- $61.22
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Megapoxy 154Vendor:
Megapoxy 154 is a water-based epoxy primer and sealer for concrete and masonry, including suitably prepared damp or green concrete. It seals porous surfaces and forms a tough, matt finish, making it particularly useful when preparing a slab for a flooring system.Prime damp slabs...- $786.52
- $786.52
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ARDEX Multiprime Water-Based PrimerVendor:
ARDEX Multiprime is a quick-drying, water-based primer for porous surfaces before compatible ARDEX tile adhesives, waterproofing membranes and levelling systems. It helps create an even bonding surface on prepared concrete, cement render, screeds, masonry, aerated concrete and fibre-cement sheet.Prepare porous surfaces for the next...- From $76.58
- From $76.58
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Gripset GP General Purpose PrimerVendor:
Gripset GP Primer is a water-based bonding primer for porous concrete, masonry, screeds, render and suitable sheet surfaces before Gripset waterproofing membranes or tile adhesives. It helps control surface absorption and provides a consistent, sound base for the next layer. Choose the primer to...- From $87.59
- From $87.59
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Gripset OP Non-Porous Surface PrimerVendor:
Gripset OP Primer is a solvent-free adhesion primer for smooth, non-porous building surfaces such as metal flashings, rigid PVC flanges, existing tiles and dense concrete. It leaves a textured bonding key for compatible Gripset waterproofing membranes and tile adhesives where an absorbent-surface primer would...
- From $160.75
- From $160.75
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Gripset Xpress Primer H2O PlusVendor:
Gripset Xpress Primer H2O Plus is a one-component vapour-barrier primer for damp or green concrete and other mineral substrates before compatible waterproofing membranes and coatings. It controls residual substrate moisture that could otherwise cause an overlaid membrane to blister or lose adhesion, without changing...
- $390.98
- $390.98
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Gripset Xpress SP Rapid Set PrimerVendor:
Gripset Xpress SP Primer is a fast-drying, solvent-free adhesion primer for smooth and dense wall or floor substrates, including suitable metals, existing tiles, natural stone and precast concrete. It prepares difficult-to-bond surfaces for compatible Gripset self-adhesive sheet and liquid waterproofing systems without relying on...
- $299.14
- $299.14
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Gripset E60 Water Based Epoxy PrimerVendor:
Gripset E-60 Epoxy Primer is a two-component water-based epoxy primer and moisture barrier for damp or green concrete, masonry, screeds and other suitable mineral substrates. It is designed to manage residual substrate moisture and specified negative-side hydrostatic pressure before compatible waterproofing membranes, tile adhesives...
- From $106.52
- From $106.52
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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.