Gypsum plaster mix GL

Product description

Fescon Gypsum Plaster Mix GL is a non-shrinking gypsum-based plaster meant for large fillings of 10-50 mm. The Gypsum Plaster Mix produces a ready-to-paint surface, but if needed, it can be levelled with Fescon Finishing plaster LRF.

  • easy to use
  • good workability characteristics
  • good grip on the base
  • spray-applied
  • manually applied
  • lightweight
  • for dry indoor spaces, not for floor surfaces or surfaces to be tiled

Applications

For filling, adjusting, and levelling of holes and rough areas on wall and ceiling surfaces in dry indoor spaces.

Suitable bases include:

  • concrete
  • aerated concrete
  • lightweight aggregate concrete
  • masonry and plastered surfaces
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Instructions

Refer to the bag for how much water the plaster requires. Mix for approximately one to two minutes using a power mixer or drill paddle. Allow the plaster to stand for approximately 10 minutes, and mix it briefly anew. Find the correct consistency at this stage by gradually adding the rest of the water. We do not recommend adding all of the water right at the start. The finished plaster remains workable for over an hour.

The base must be clean, solid, and dust-free. Remove any substances that could impair adhesion, such as dust and oils, before applying the plaster. Apply a metal lath sheet where the base material (such as brick or concrete) and the plaster meet. Large, over 50-mm fillings require multiple layers which are applied one at a time with at least one day between each layer to allow enough time for the plaster to set.

Fescon Gypsum Plaster Mix GL is applied as an even and at least 10-mm-thick coat with a plaster sprayer or a steel trowel over the entire area to be covered. If you apply more than one layer of plaster, make the surface of the first layer rough by scratching it with a wooden float and apply the new layer as wet-on-wet, so before the first layer has fully set. The surface is lapped with a wet cell foam sponge and smoothed with a steel trowel. In necessary, the surface can be levelled with Fescon Finishing plaster LRF before it is painted.

A dirty surface can be carefully wiped with a damp sponge, levelled with a Finishing plaster LRF, or painted.

Waste handling

Hardened product and empty, dry packages can be delivered to a landfill. A liquid product must be delivered to a hazardous waste reception point.

Technical information

Water requirement approx 6,6 l / 15 kg
Type powder
Binder gypsum
Colour light
Maximum grain size

0,6 mm

Package size 15 kg
Storage

storage time in a dry location approx. 12 months

Density

approx. 1,1 kg/dm3

Layer thickness

10-50 mm

Lowest usage temperature

+ 5°C

Workability time > 1 h
Drying time

7 d

Compressive strength

approx. 5 MPa

Pull-out strength 100 does not weaken after a freeze-melt cycle (SFS 5447)
Surface tensile strength > 1,0 MPa
Shrinkage

< 0,1 ‰ (28 d prisma)

Fire class A1

References

Other links

The information is based on tests and practical experience. We cannot affect conditions at the work site so we cannot assume responsibility for the end result affected by local conditions.

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