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Adheseal Autoshield ActivatorVendor:
Use Adheseal Autoshield Activator AP1001 to enhance the adhesion of polyurethane adhesives to glass, lacquer, and non-porous surfaces. It ensures a robust chemical bond, preventing common failures due to poor surface preparation, and applies cleanly as a clear liquid at 5-40°C.- From $48.66
- From $48.66
- Unit price
- per
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Everflex Multi-Prime Acrylic PrimerVendor:
Use Everflex Multi-Prime for preparing both porous and non-porous substrates before applying waterproofing membranes, tile adhesives, or levelling compounds. It offers rapid 1-hour drying and system compatibility, reducing callbacks and speeding up project timelines.
- From $71.69
- From $71.69
- Unit price
- per
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Everflex VBS Water-based Epoxy PrimerVendor:
Use Everflex VBS as a 2-part water-based epoxy primer and negative pressure vapour barrier for damp or green concrete. It withstands up to 25m (250 kPa) hydrostatic pressure and allows overcoating in 4-24 hours, preventing moisture-related system failures and accelerating project timelines.
- $440.44
- $440.44
- Unit price
- per
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Everflex Primer WBPVendor:
Use Primer WBP for preparing porous concrete and screeds for Adheseal water-based membranes. It beds down dust and ensures strong adhesion, meeting Green Star criteria with very low VOCs.
- From $48.26
- From $48.26
- Unit price
- per
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Adheseal Primer 50AVendor:
Use 50A Primer to significantly enhance adhesion of Polyurethane, MS, Silicone, and acrylic sealants and adhesives on non-porous surfaces like powder coat and metal. Its 15-second dry time ensures rapid application and long-term durability, preventing costly bond failures.
- $53.03
- $53.03
- Unit price
- per
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Everflex Polyurethane SupaprimeVendor:
Use Everflex Supaprime to ensure robust adhesion for Adheseal sealants and membranes on porous substrates like concrete and timber. Its rapid cure and deep penetration prevent costly delamination, providing a reliable bond for critical applications.
- $59.51
- $59.51
- Unit price
- per
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Autoshield GB Autoglass PrimerVendor:
Use Adheseal GB Primer for critical automotive glass and body bonding with Autoshield 1-FC polyurethane adhesives. This solvent-based black primer enhances adhesion on diverse substrates and includes UV luminescence for in-process application control.
- $56.25
- $56.25
- Unit price
- per
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Megapoxy 154Vendor:
Use Megapoxy 154 for priming and sealing concrete and masonry, especially on damp surfaces, to create a tough, chemical-resistant coating that handles foot and light vehicular traffic. Its water-based formulation provides excellent adhesion and penetration while serving as a moisture barrier.- $700.00
- $700.00
- Unit price
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Sika Primer-3 N Epoxy PrimerVendor:
Use Sika Primer-3 N to enhance adhesion for specific Sika sealants and adhesives on porous substrates and metals. Its solvent-based epoxy resin formula is water repellent and offers a short 30-minute flash-off time, ensuring robust system performance.- From $71.45
$0.00- From $71.45
- Unit price
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Ardex Multiprime PrimerVendor:
Use ARDEX Multiprime for priming porous concrete, render, and AAC to improve adhesion for ARDEX systems. It dries in 15-30 minutes and offers reliable bond strength for demanding applications, avoiding issues caused by untreated substrates.- $301.48
- $301.48
- Unit price
- per
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Gripset GP PrimerVendor:
Use Gripset GP Primer for enhancing adhesion of Gripset membranes and tile adhesives on porous substrates. It dries in 30 minutes, covers 8-10m² per litre, and is crucial for preventing callbacks due to poor bonding.- From $87.36
- From $87.36
- Unit price
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Gripset OP PrimerVendor:
Use Gripset OP Primer for reliable adhesion on challenging non-porous surfaces like metal, existing tiles, and PVC. This solvent-free, low VOC primer delivers a textured finish and dries in 30 minutes, ensuring a strong bond for Gripset membranes and tile adhesives.
- From $160.32
- From $160.32
- Unit price
- per
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Gripset Xpress Primer H2O Plus PrimerVendor:
Use Gripset Xpress Primer H2O Plus for fast-drying vapour barrier priming on damp or green concrete and mineral surfaces, ready for overcoating in 1 hour. Its colour change indicator confirms readiness, preventing blistering and efflorescence.
- $389.93
- $389.93
- Unit price
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Gripset Xpress SP PrimerVendor:
Use Gripset Xpress SP to prime challenging non-porous and porous substrates, ensuring strong adhesion without etching and drying in 30 minutes for faster job completion.
- $298.34
- $298.34
- Unit price
- per
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Gripset E-60 Epoxy PrimerVendor:
Use Gripset E-60 as a two-component epoxy primer and moisture barrier for concrete and masonry. It withstands up to 2.5 bar hydrostatic pressure, applies to damp and green concrete, and is AS 4020 compliant for potable water.
- From $106.24
- From $106.24
- Unit price
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RLA Universal PrimerVendor:RLAUse RLA Universal Primer to manage suction on porous concrete or promote adhesion on non-porous surfaces like tiles. This water-based acrylic primer dries tack-free in 30-60 minutes, preventing bond failures before tiling or levelling.
- From $121.14
- From $121.14
- Unit price
- per
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RLA Moisture Seal PrimerVendor:RLAUse RLA Moisture Seal as a high-performance 2-part epoxy barrier against moisture and vapour. It withstands 2.5 bar of hydrostatic pressure and can be applied to damp or "green" concrete, preventing moisture-related failures under overlaid finishes.
- $459.03
- $459.03
- Unit price
- per
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Mapei Primer GVendor:
Use Mapei Primer G for critical substrate preparation, ensuring stable adhesion and preventing common failures like ettringite formation between gypsum and cement-based materials. It offers EC1 Plus low VOC emissions and fast drying.- From $57.91
- From $57.91
- Unit price
- per
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Mapei Eco Prim T Plus PrimerVendor:
Solvent-free acrylic primer with excellent adhesion, flexibility, and water resistance. Suitable for concrete, ceramic, wood, and other internal flooring substrates.
- From $103.16
- From $103.16
- Unit price
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Silcor Primer BSVendor:
Use SILCOR Primer BS for reliable adhesion of SILCOR polyurethane membranes to most rigid construction substrates. Its fast-drying (30-60 min) modified polyurethane resin ensures a strong bond and water resistance, critical for weather-interrupted jobs.- $299.29
- $299.29
- Unit price
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GCP Epocote F100W Clear Epoxy PrimerVendor:
GCP Epocote F100W is a clear, two-pack, water-based epoxy primer and sealer. Designed for priming damp or green concrete, it offers an exceptionally long pot-life and fast cure, ensuring a tough, chemically resistant bond for professional waterproofing membrane systems.
- From $471.81
- From $471.81
- Unit price
- per
Frequently Asked Questions
Does every caulking job need primer?
No. Primer is selected according to the sealant system and substrate. Some products are designed for primerless adhesion on common surfaces, while porous, difficult or high-performance applications require a specified primer. Check the sealant technical data before applying anything to the joint.
How do I choose a primer?
Match the primer to the substrate and the sealant or adhesive system. Porous and non-porous surfaces may require different products, and some primers are specific to a manufacturer or chemistry. Confirm the approved combination, preparation method, coverage and drying window in the technical data.
How should primer be applied?
Apply a thin, even film to the clean bond area using the method specified by the manufacturer. Avoid pooling or contaminating adjacent finished surfaces. Allow the primer to flash or dry for the stated time before applying sealant; applying too soon can weaken the bond.
Can I use a general-purpose primer?
Only when the sealant manufacturer approves it for the exact substrate and application. A general-purpose primer is not automatically compatible with every silicone, polyurethane, acrylic or hybrid sealant. Use the product technical data as the authority and test the complete system where the joint is critical.
What happens if primer is applied incorrectly?
Excess primer, incomplete drying, contamination or use on an unsuitable surface can reduce adhesion and create visible defects. Remove failed preparation where possible, clean the surface again and repeat the approved process. Do not assume adding more primer will correct a preparation problem.