Mapei Acrylic Sealant, Suitable for Flexible Interior Joints in Masonry, Plaster and Concrete - Grey

Mapeflex AC4 Grigio is a grey, flexible adhesive designed for fixing most tile types. It bonds to concrete, wood, metals, plasters, wall cladding and other surfaces, remains flexible after curing, and is suitable for interior and exterior tiling projects with low odour.

It bonds well to concrete, wood, metals, plaster, wall cladding and other common substrates, making it versatile for a wide range of tiling applications both indoors and outdoors.

It has excellent adhesion even at very low temperatures and features an extended open time to allow correct tile adjustment.

Yes, it retains flexibility after curing. It is suitable for high-stress areas such as airports, public buildings and supermarkets, and can be used for fixing overlays and micro-cement in both interior and exterior settings.

Yes, it can be used in wet and dry settings and is waterproof, making it appropriate for areas exposed to water.

It can be applied by hand or with a trowel to a thickness of 3–15 mm, depending on tile type and substrate requirements.

Absolutely. It is formulated for interior and exterior applications, enabling seamless tiling across different environments.

Wear appropriate PPE (gloves, eye protection), ensure good ventilation, avoid prolonged skin contact, and follow standard handling and storage practices for construction adhesives. Keep away from children and protect from extreme temperatures.

Prepare the substrate, apply the adhesive with manual or trowel methods, set the tiles with proper alignment, back-butter larger tiles if needed, and allow for the recommended initial set and grouting times as per project needs.

Mapeflex AC4 Grigio, Bianco and Antracite share the same base adhesive formulation and performance; the color variant only changes the visible appearance. For large-scale projects, Bianco or Antracite can be chosen to better match tile tones or design schemes. See also: Mapeflex AC4 Bianco (https://fepy.com/product/mapeflex-ac4-bianco) and Mapeflex AC4 Antracite (https://fepy.com/product/mapeflex-ac4-antracite).

Its high plasticity and strong bonding performance can reduce installation time and rework, offering good value for larger projects. Unit price depends on pack size and local supplier terms.

Yes, you can choose color variants such as Bianco (white) or Antracite (anthracite) to better match your tile selection. See available options on Fepy to compare color variants that suit your project palette.