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Go to the shopNexus ProJoint Fusion is a high-strength, ready-to-use brush-in jointing compound designed for natural stone and concrete paving. Its pre-mixed formula makes filling joints between paving slabs and setts quick and straightforward, making it suitable for professional installers and DIY projects.
The permeable resin-based formula allows water to drain through the joints, helping reduce surface water and pooling. Once cured, it creates a durable, frost-resistant and weed-resistant joint without permanently staining the paving.
Ready-mixed brush-in formula
Suitable for natural stone and concrete paving
Ideal for patios, pathways and pedestrian areas
Suitable for joint widths of 3mm and above
Recommended minimum joint depth of 25mm
Suitable for application in light rain
Permeable formula supports effective drainage
Frost-resistant and weed-resistant finish
Cement-free and non-hazardous
Supplied as two 7.5kg bags to minimise waste
Available in Neutral Buff, Mid-Grey, Basalt and Black
The paving should be clean, stable and installed on a full, permeable bedding mortar. Before application, ensure the joints are at least 3mm wide and cleaned to a minimum depth of 25mm.
Apply when the surface temperature is between 3°C and 25°C. Thoroughly wet the paving, brush the compound into the joints and lightly mist with water to help compact the material. Remove any excess using a clean, soft brush.
Under dry ambient conditions, the surface may accept foot traffic after approximately 12 hours. Cold or wet conditions can significantly increase curing time, and full strength is reached after approximately 28 days.
600 × 600mm slabs with 5 × 25mm joints: 20m²
Four-size Indian paving with 5 × 25mm joints: 17.2m²
100 × 100mm setts with 5 × 25mm joints: 3.33m²
Coverage will vary depending on the paving size, joint width and joint depth.
ProJoint Fusion is intended for pedestrian areas only and is not suitable for vehicle-trafficked surfaces. It is also not recommended for porcelain paving; Nexus ProJoint RapidFlow should be used for porcelain installations. Testing a small area before full application is recommended, particularly when working with sensitive, sawn or grey paving.
Product Type: Resin-Based Brush-In Jointing Compound
Pack Size: 15KG
Minimum Joint Width: 3mm
Recommended Joint Depth: 25mm
Suitable For: Natural stone and concrete paving
Application Areas: Patios, pathways and pedestrian spaces
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