NBS Source
Stopgap 850 Exterior

Application

Suitable:

  • For smoothing areas such as balconies, patios, garage sand walkways and is unaffected by rain or frost when set and dried.
  • For smoothing subfloors prior to the application of a suitable non-slip coating or external covering such as artificial grass.
  • For internal application over damp, uneven concrete and sand/cement screeds, prior to application of STOPGAP Waterproof Surface Membranes and STOPGAP ISOLATOR MEMBRANE.

Description

STOPGAP 850 is a non structural exterior grade smoothing compound for use in light to medium duty applications to smooth and level rough or mechanically damaged concrete or sand / cement screeds.


STOPGAP 850 can be left as a stand-alone exterior wearing surface. To give a more natural surface finish and to reduce the potential for slip, if left uncovered, it is recommended that a scratch coat is applied to the surface and brush finished to a textured profile.


STOPGAP 850 can also be pump applied up to 900 m² per day, dependent upon manpower, thickness applied and equipment used.


Priming:

Absorbent surfaces – Concrete and sand/ cement screeds must be primed with STOPGAP P131 diluted 1:7 with water

General information

Finish

Smooth

Shape

Formless

Uniclass

Pr_35_31_06_80 Smoothing and levelling underlay compoundsPrimary

CAWS

M10/157 Proprietary surfacing to lightweight aggregate levelling screeds M10/

Specification data - Smoothing and levelling underlay compounds

Standards

To EN 1504-3:2005 Class R2.

Working time

10–15 minutes at 20°C.

Setting time

2 hours at 20°C.

Consumption (per layer applied)

1.72kg/m² per mm thickness.

Compressive strength - 28 days

To EN 12190.

>25.0 N/mm².

Flexural strength

To EN196-1.

>6.0 N/mm².

Literature

Flooring Installation Products

Flooring Installation Products

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