NBS Source
Naturewalk System

Application

Suitable for outdoor environments subject to heavy footfall such as leisure complexes, theme parks, holiday resorts or other public points of interest.

IMPORTANT: All specification information must be checked against the individual site requirements. Flowcrete advises that specifications are confirmed with their technical experts.

Description

A slip-resistant bonded gravel system, used primarily to surface outdoor areas, whereby a range of natural stone aggregates are scattered into a solvent free polyurethane resin binder. It offers an alternative to block paving eliminating the cracks where weeds can grow and dirt can dwell.


Features and benefits:

  • Slip resistant profile.
  • Capable of withstanding heavy footfall and vehicular traffic.
  • Available in a range of natural stone aggregates.
  • Alternative to loose stone and/or gravel.
  • Easily cleaned and maintained.
  • Chemical resistant: high resistance to tea, coffee, cola, fruit juice, soaps and bleach.
  • Capable of installation over ‘green concrete’.

General information

Finish

Natural stone

Material

Polyurethane

Solvent-free polyurethane resin.

Aggregate

Natural stone aggregate.

Size

3–4 mm

WarrantyDescription

Sealed: Seven year warranty, Unsealed: Four year warranty.

-

Uniclass 2015

Ss_30_14_02_70 Resin-bonded aggregate paving systemsPrimary

CAWS

Q10/305 Tree grilles and surrounds

Q22/175 Proprietary pedestrian paving

Specification data - Resin-bonded aggregate paving systems Enhanced data

Subgrade improvement layer

Heavy duty external grade screed.

Not required.

Base course

Concrete or screed with a minimum compressive strength of 25 N/mm².

Surface course

-

Binder

Deckshield SF polyurethane-based resin.

At 2.5 kg/m².

Chippings

T Quartz.

2–3 mm.

Guyanaan bauxite.

1–3 mm.

Brittany Bronze.

1–3 mm.

Chinese Buff bauxite.

1–3 mm.

Edge restraints

Required.

Applied surface features

Insert requirements or enter 'Not applicable'.

Samples required

As required.

Product Reference

Naturewalk System

Primer

Not required.

Up to 75% RH.

Flowfast Damp Primer.

75–100% RH.

Damp proof membrane

Not required.

Hydraseal DPM.

Sealer

Flowfast standard seal.

Not required.

Slip resistance

Dry/ Wet >40 low slip potential - To EN 13036-4/ BS 7976-2.

Abrasion resistance

Dependent on aggregate selection, use bauxite for heavier duty wear and vehicular traffic.

Bond strength

Greater than cohesive strength of 25 N/mm² concrete (>1.5 MPa).

Cure time

Light traffic: 16 hours, Full traffic: one day, Full chemical cure: seven days.

At 20°C and 50% relative humidity (RH).

Impact resistance

To ISO 6272, 1 kg > 1.8 m, 2 kg > 1.5 m.

Temperature resistance

Softens over 70°C, hardens on cooling.

Water permeability

Nil.

Karsten test (impermeable).

Digital objects

Platform Compatible Version Certified to
IFC

IFC2X3

1

1.3
Revit

Revit 2016

2

2.0
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