FAST NORMAL-W an adhesive mortar for mineral wool 25kg

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Vendor: FAST
Product code: NORMAL-W 25kg


adhesive mortar for bonding mineral wool panels





FAST NORMAL W  is suitable for bonding mineral wool panels on various types of surfaces, such as concrete, hollow bricks, cement plaster, cement-lime plaster, etc. Inside, as well as outside. It is a component of ETICS FAST W insulation systems and FASROCKG/ECOROCK G and FAST WG-S garage insulation systems.


FAST NORMAL W is an adhesive mortar in a form of dry mineral mixture, modified with synthetic polymers, frost and waterproof with increased flexibility.


25 kg bag




Preparation of the surface

Surface s should be strong and free from any type of dirt that reduces mortar adhesion (e.g. residues of old, loose-fitting paints, all kinds of lichen, dust and dirt). Larger unevenness should be levelled with plaster or levelling mortar. Dusty surfaes should be reinforced with FAST GRUNT G. Walls made of highly absorbent materials should be primed with FAST GRUNT U.




Preparation and use

Mix  the contents of the package to about 5.5 liters of water and mix with a slow-running drill until c mass onsistentis obtained. Leave for about 10 minutes and mix again before use (do not add water). The mortar prepared in this way is suitable for use for  2.5 to 3 hours. During the works it is necessary to mix the mortar regularly every 30 minutes.

Bonding mineral wool panels can be carried out in two ways. In case of insulation of even, plastered surfaces, the adhesive mass is applied to thin layer panels with a toothed trowel with square teeth of 8-10 mm, and then glued to the insulated wall. In the case of unplastered wall, mortar should be applied to mineral wool panels using the "peripheral-point" method, i.e. using a trowel along the perimeter of the foamed polystyrene board with a band of about 3-4cm wide and additional 3-8 pieces. The size of pieces should depend on the number of them. The adhesive mortar should cover not less than 40% of the panel surface. Correctly made rims should be sufficiently far from the edge so that after pressing the board the glue does not go beyond its outline.

Mineral wool panels should be glued tightly one next to the other, starting from the skirting panel up to the roof with the preservation of the passing system of vertical joints. If it is necessary to apply additional protection of the system with the use of mechanical fasteners, their assembly may start not earlier than after 3 days from gluing the mineral pan panels. The exact number, type and method of application should always be based on the project of insulation. During the works it is absolutely necessary to observe appropriate atmospheric conditions, i.e. to avoid too much sunlight and high humidity.





Technical data

Base unit: kg

Base: dry mineral mixture modified with synthetic polymers

Mixture ratio: approx. 5.5 l of water per 25 kg of dry matter

Density of mortar after mixing with water: approx. 1.6 kg/dm3

Open time: approx. 20 minutes

Standby time: from 2.5 to 3 hours

Adhesion to lamellar wool: min. 0,08 MPa

Substrate and ambient temperature: from 5 to 25 degrees Celsius.

Adhesion to ordinary wool: min. 0,08 (violation in thermal insulation material) MPa




Storage and remarks

Store in factory sealed packaging, in dry rooms, on pallets. Shelf life is 12 months.

The recommended and stated in the card scope of application of the product or the method of execution does not relieve the contractor from carrying out work in accordance with the art of construction and health and safety rules. P.W. FAST guarantees and is responsible for the quality of the product, but has no influence on the way it is used and the conditions under which it was used. All technical data were measured under normal conditions, i.e. +20°C and air humidity of 60%. In case of other conditions the drying time may change, i.e. it may be longer or shorter.

This sheet replaces all previous versions.

The product contains cement and water to give an alkaline reaction. Avoid direct contact with skin, do not breathe and protect eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Keep out of children.

This product complies with the European Technical Approval: ETA-14/0465 Certified according to ETA: 1020-CPR-020-032351.

Product compliant with Technical Approval ITB: AT-15-9146/2013 + Annex 1 and AT-15-9715/2016.

It has a valid hygienic certificate.

A component of ETICS FAST W , FASTWG-S and ECOROCK G/FASROCK G thermal insulation system.



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