M-Silicon

Product

High-elastic, one-component sealant on the basis of silicone rubber .
Cures neutrally when exposed to air humidity

Colours

Available in colours to match cement-based Alfix grout range: brilliant white, grey, pale grey, steel grey, graphite, anthracite, black grey, light beige and jura beige. Colour swatches available on request.

Coverage

Coverage

Packaging

Available in 300 ml cartridges.

Features

Due to neutral curing, Alfix M-Silicon will not cause any colour alteration of acid-sensitive materials, such as natural stone and hence, the product is very suitable for marble, granite, travertine, etc.
Also ideal for sealing facades with ceramic tiles as the product does not attract dirt.
Alfix M-Silicone retains elasticity and produces a long life weather- and waterproof joint resistant to mildew (sanitary type).

Generel

Expected Result

Surface
The joint should be smooth with an even surface, free from holes or lines. Avoid inappropriate working or late smoothing, as this may leave noticeable lines or holes.

Design
The joints should be filled to a depth suitable for the tiles and their intended use. Shape the joint so it is not any deeper than the tiles to prevent water from accumulating on the surface. Shape joints along vertical boundaries with a run-off away from the vertical surface.

Strength
After curing, the joint should be solid with secure adhesion to the tile edges. The joint cures on contact with ambient humidity; applying a little water when smoothing will accelerate membrane formation. Excessive water will disrupt curing. Moist surfaces will prevent adhesion. For maximum elasticity, join two edges only. That is why a backstop or tape should be used at the base. To check tile edge adhesion, carefully probe the middle of the joint with a blunt, approximately 50 mm long instrument.

Colour
All joints will change colour over an extended period – no joint will be the same colour after years of use as it was at first.
Colour fading or discoloration of silicone joints triggered by chemical interactions with cleaning agents or their vapours, off-gassing from paint or wood furniture or similar are not covered by the warranty.

Application

Particularly suitable for expansion joints in ceramic surfaces, sealing around pipe passages, and sanitary installations.
Excellent adhesion without priming to glass, ceramic tiles, marble, natural stone, enamel, metals, painted surfaces, and varnished wood.

Waterproofing

Surface preparation

Fixing dowels

Finishing

Sealings

Flooring

Precautions

Tile fixing

Tile fixing

Tests

EN 15651
Alfix M-Silicon conforms to the rules of FDA CFR Section 21 177.2600 as well as EC No 1935/2004 concerning
materials and items that may come into indirect contact with food.

Surfaces

Surfaces

Surface preparation

General information: Bonding surfaces must be dry and clean. Vacuum and degrease the area with acetone or methylated spirits.
Bare metal and plastic should be sanded (keyed).
For tiled surfaces, joints must be free of sealant and caulk through to the underlying surface. Bonding surfaces must be the full thickness of the tile. Backstop deeper joints with plastic foam (semicircular strips) or similar to the lower edge of the tile so that
the depth at the middle of the joint is approximately half the width of the joint. The edges must be exposed.
Swimming pools: The bonding surfaces in swimming pools must always be primed and the joint width must be between 10 and 15 mm. Use a backstop material suitable for this application. Run masking tape along the edges of the tiles. Apply an even layer of Alfix P-Primer onto both bonding surfaces and leave the primer to dry completely.

How to use

Use masking tape to protect tiles.
Fill joints completely using appropriate gun. Finish off within 15 minutes by smoothing using a damp tool, such as smoothing kit or joint nail.
Remove any masking tape immediately after smoothing.