tuffflow® is a 2-part permeable jointing mortar system made for bound or rigid installation of paving where SuDS permeability is required. Supplied as a 24kg dry powder binder and 25kg tuffgrit® aggregate, it is suitable for use with natural stone, concrete or porcelain paving units with joint widths of 10mm or more. Contains no polymers or resin additives.

  • Permeable jointing mortar for SuDS-compliant paving installations

  • Allows use of a wide range of paving units including natural stone, concrete, and porcelain

  • Supports joint widths from 10mm to over 20mm for effective drainage

  • Can be jet washed and swept to maintain permeability and appearance

  • Low maintenance compared to unbound jointing aggregates

  • Suitable for heavy pedestrian traffic and vehicular overrun

  • Supplied in easy-to-handle packaging

Applications

Domestic patios, driveways, public spaces, and areas requiring permeable paving with SuDS compliance

Dimensions

Binder bag weight 24kg

Aggregate bag weight 25kg

Recommended joint width 10mm–20mm

Materials

Dry powder binder

Aggregate (tuffgrit)

Performance

Mortar strength designation 25MPa

Maintenance

Can be lightly jet washed and swept or brushed to keep clean and silt-free