gräfix 688
Fine mineral-based paint
gräfix 688 is a finely filled, highly opaque and highly water-vapour-permeable silicate paint based on high-quality water glasses. It is suitable for filling hairline cracks and for mineral, vapour-permeable coatings for both interior and exterior use.
Through silicification, the paint bonds with suitable mineral substrates and forms a durable mineral surface with a stone-like character.
Packaging: 5 kg and 20 kg buckets
Coverage: approx. 250 g/m² per coat
- A fine, filled, water-glass-based coating with grit
- for filling hairline cracks
- for levelling out surface irregularities
- for interior and exterior use
- for substrates capable of silicification
- as a filled coat or as a mineral-based brush-on render
- can be thinned with Mineral Fixative
- Colour: white
- Sd value: < 0.01 m
- Grain size: 0.3 mm
- Supplied in 5 and 20 kg buckets
- reacts with suitable mineral substrates to form a permanent bond
- the high pH value of the mineral coating can make it difficult for algae and fungi to colonise the surface
- Highly vapour-permeable with an Sd value < 0.01 m
- Free from plasticisers
- free from biocides
- Free from preservatives
- Can be applied by hand or by machine
- good sprayability
- the high water vapour permeability supports vapour-permeable wall constructions
- Removing coatings that limit adhesion
- Etch new render surfaces or sintered layers with gräfix 699 SinterEx
- Prime sandy and absorbent substrates with gräfix 697
- Prime non-mineral substrates with gräfix 686
- Stir gräfix 688 thoroughly
- Can be diluted with up to 5 per cent water
- Apply the paint by brushing, rolling or spraying
- Can be recoated: after 6 hours at the earliest
- Drying time: at least 12 hours, depending on weather conditions
- Please refer to the technical data sheet!
Coverage (g/m²):
approx. 250 g/m² per coat
- Technical Data Sheet ► (DE) - (EN)
- Safety Data Sheet ► (DE)
- Brochure: ‘Mineral Paints’
gräfix mineral paints
gräfix mineral paints based on silicate and lime, for interior and exterior use
Silicate paints in accordance with VOB/C DIN 18363, Section 2.4.1, for the protection and decoration of façades, for vapour-permeable coatings indoors and for mineral-based finishes outdoors. The paints are based on water glass and possess vapour-permeable properties.
The combination of selected inorganic colour pigments, mineral fillers and water glass lends the gräfix mineral paints protective and durable properties and helps to safeguard the building fabric. The lightfast colour pigments ensure an expressive colour effect and depth of colour.
Thanks to its high pH value, the gräfix mineral paint system requires no biocidal or fungicidal additives, nor any preservatives. The high pH value creates conditions on the wall surface that can inhibit the growth of mould. The paint system is therefore suitable for use indoors.
