MF1 is a vapour open lightweight mineral based filler specially designed to deal with hairline cracks and large deep fill patches while remaining vapour open. MF1 can also be used as a light duty adhesive. Use PS1 prior to application for additional bond strength, in particular if using as a light duty adhesive. The Silic8 range is the only range on the market to be independently tested for vapour diffusion to reassure you that water vapour is not trapped in the fabric of your building.
Some typical substrate types: Most mineral and masonry backgrounds, magnesium silicate boards, historic or new plasters (lime, cement or gypsum), wood, and wood type boards, terracotta and some ceramic tiles and paints*. An in-house testing facility for bond strength is offered if you have specific requirements**
Coverage: The surface must be sound and dry. Where the surface is powdery or friable, use PS1 prior and work the primer in to the affected areas with a brush and test for bond strength after 24 hours.
Ensure that surrounding surfaces are protected, particularly glass. Wash splashes, tools and brushes with water. Do not store or use in extremes of temperatures (<5 or above 30C). If splashed on the skin wash off immediately with water. Wear the appropriate Personal Protective Equipment; Refer to the Safety Data Sheet before use
The primer can be plastered after 24 hours. Ensure that the plaster is appropriate to the task.
* We do not take responsibility for compatibility with any of the suggested or unlisted substrates types.
**A charge is made for this service and is only indicative of actual bond strength. Not all substrates are suitable for testing at our facility. Due to the variation of substrate types we recommend that a representative area of substrate to be primed is first tested to satisfy all your requirements