Mapei Mapefix VE SF

Technical Characteristics

Mapefix VE SF is a two-component chemical anchoring product, packaged in 300 and 420 ml cartridges with two separate compartments containing component A (resin) and component B (catalyser), at the correct mixing ratio in volume. The two components are mixed together when they are extruded via the static mixer supplied with the cartridge. The mixer is screwed to the end of the cartridge, and no preliminary mixing of the two components is required. If only part of the cartridge is used, the remaining product may be used, even after a number of days, by replacing the original static mixer clogged by hardened resin with a clean, new one.

Mapefix VE SF does not contain styrene which makes it suitable for use in areas with poor ventilation and, due to its low shrinkage, it is also suitable for anchors with small circular crests.

Mapefix VE SF is a chemical anchor made from a mixture of styrene-free resins, suitable for application on a wide range of solid and perforated building materials, such as:

• non-cracked concrete;
• lightweight concrete;
• cellular concrete;
• masonry;
• bricks;
• stone;
• wood.

Technical Data:

Mapefix VE SF is applied to holes made with a drill or hammer drill. We recommend using only a drill on perforated substrates.

Mapefix VE SF is certified according to the European Standards ETA option 1 (anchors in concrete in tension or compression zones), ETA rebar (supplementary reinforcement) and fire certification, ETA seismic performance C1 (in seismic zones).

The Mapefix VE SF 300 ml size cartridges may be used with conventional silicone extrusion guns for 50 mm diameter cartridges, as long as they are robust enough. The 420 ml cartridges need to be used with a special extrusion gun for 65 mm diameter cartridges.

Application Procedure

Design of the anchor

The size of the hole in the substrate, the depth of the anchor, the diameter of the anchoring element and the maximum permitted loads must be calculated by a qualified design engineer. The following tables contain practical design suggestions based on the company’s experience and internal testing carried out in compliance with EOTA guidelines (European Organization for Technical Assesment). MAPEI has a special programme (Mapefix Software Design) available to help technicians and designers find the correct size for single and multiple anchors in any concrete element: consult the MAPEI Technical Services Department.

Preparation of solid surfaces

• Make holes in the substrate with a drill or a hammer drill, according to the type of material to be drilled.
• Remove all traces of dust and loose material from inside the holes with compressed air.
• Clean the surface inside the holes with a suitable long-bristled bottlebrush.
• Remove all traces of dust and loose material again from inside the holes with compressed air.

Preparation of perforated surfaces

• Make holes in the substrate with a drill.
• Clean the surface inside the holes with a suitable long-bristled bottlebrush.
• Place a mesh bush in the hole, with a diameter and length suitable for the size of the hole.
• It is very important that holes are carefully cleaned in order for Mapefix to reach the maximum mechanical performance possible.

Preparation of the metal bar

• Clean and degrease the bar before anchoring it in the substrate. Eliminate every trace of form-release compounds.

Preparation of the resin for the chemical anchor

• For the 300 ml cartridge, unscrew the upper cap and cut off the tips of the black and white sacks which protrude from the cartridge. This operation is not required with the 420 ml cartridge.
• Screw the static mixer supplied with each pack to the end of the cartridge.
• Insert the cartridge in the extrusion gun.
• Discard the first three shots of resin, it may not be mixed correctly.
• Starting from the bottom of the hole, extrude the product in the hole until it is full.
• Insert the metal bar in the hole using a rotary movement to expel all the air until all excess resin comes out of the hole. The metal bar must be inserted in the hole within the start setting time (T ) of the resin; only apply loads to the bar once the resin has completely hardened (T ), as indicated in table 1.