For high-strength structural bonding of wall mouldings, architraves, skirting boards, and flooring panels, Builders Nails Adhesive is a solvent-based synthetic rubber construction adhesive that prevents vertical slump. It can be applied as a one-way liquid adhesive or a two-way contact adhesive to establish a durable bond on wet and dry timber, concrete, masonry, and metals.
How it works
Builders Nails Adhesive cures via solvent release, drying into a resilient, thixotropic synthetic rubber bond. This non-slump consistency holds heavy elements on vertical surfaces without sliding during installation. Its low-temperature extrudability means it flows consistently from the nozzle even in cold weather. Once cured, the adhesive is non-corrosive to galvanized steel, zinc-coated steel, and concrete, and resists weathering and water penetration. It can also be painted over with acrylic, oil, and rubber-based paints, provided preliminary compatibility tests are performed.
Numbers that matter
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300 g/L VOC: Meets the volatile organic compound limit under California South Coast Air Quality Management Rule 1168.
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5 to 7 days full cure: The standard window to reach maximum structural hold, varying with bead thickness, environmental conditions, and substrate porosity.
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28 days concrete cure: Concrete must be fully cured for at least this duration before application to prevent moisture-trapped delamination.
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12 to 72 hours bond development: The timeline to reach maximum bond strength when using the two-way application method.
Where to use it
This adhesive bonds a broad range of building materials including:
- Timber, MDF, particleboard, weatherboards, and Scyon flooring
- Plasterboard and masonry (concrete, brick, aerated concrete, mortar)
- Metals including aluminium, galvanized steel, and powder-coated surfaces (excluding lead and copper)
- Porcelain, ceramic tiles, glass, and glazed surfaces
- Fibreglass, polycarbonate, rubber, and polyester or acrylic resins
Limitations
- Do not use on metals heated by direct sunlight, as bonds weaken at elevated temperatures (use Adheseal PU50 instead).
- Do not use on styrene foam (use Allflex 101 instead).
- Do not use as the sole bonding agent for structural glazing (use N80 or N60) or structural bonding (use Adheseal Unobond).
- Do not use in tightly clamped joints such as cabinet making joinery (use Adheseal Unobond).
- Do not use for permanent water immersion, including fish tanks and swimming pools.
- Do not use on mirrors without preliminary testing (Adheseal Hi-power or MS609 are recommended).
- Do not use on composite panels without testing (Hi Flex Construction is recommended).
- Do not apply to stone without stain testing (S100 is recommended for marble and granite).
- Only apply when surface temperatures are between 10°C and 30°C. Do not use where continued elevated temperatures will occur.
- Keep away from open flames, sparks, and sources of ignition (classified as Flammable Liquid 3).
Application and installation
All substrates must be clean, dry, structurally sound, and free from surface water or continual dampness. Impervious surfaces should be prepared using the two-wipe cleaning process with a solvent like Xylene.
For non-porous metals and plastics, slightly roughen the surface, then treat with Adheseal 50A surface prep. Allow 30 minutes to 2 hours drying time before applying adhesive. For porous masonry surfaces, prime with Everflex Supaprime and allow 30 minutes to 2 hours before bonding.
One-way method (best for light panels and flooring): Apply a 4mm to 6mm bead to the substrate. Bring surfaces together immediately and secure with clamps, nails, or screws for a minimum of 24 hours. To eliminate floor squeaks, extrude a bead directly into the panel groove before mating the tongue.
Two-way method (best for heavier vertical elements): Apply the adhesive bead, press the surfaces firmly together to transfer the wet adhesive, and then pull them apart. Allow the solvent to tack off for 3 to 5 minutes. Reposition the elements and tap firmly together with a hammer and padded block. Heavy panels will require temporary mechanical support during the initial cure.