Polyac M — Fast-curing PMMA repair mortar

Note: The following is a typical application description. In case of other jobsite parameters, please contact our technical department.

Pour the mortar on to the prepared substrate. Compacting will increase mechanical resistance.

Finishing can be done with trowel, spatula or vibrating plate. Liquid resin on the mortar surface means that too much resin was used; a matte surface suggests too little resin.

Before starting the substrate preparation and applying the products, it is important to test various parameters in order to achieve a good and sustainable result.

• Compressive strength of the substrate: min. 25 N/mm2
• Tensile strength of the substrate: min. 1,5 N/mm²

• POLYAC® M must be applied a dry surface.
• Moisture content in the substrate: ≤ 5% moisture.
• Exception: ≤ 10% moisture if the primer POLYAC® 18 is used.

Conditions during the application and curing: see “implementation conditions” further described in this technical data sheet.

Technically studied dilatation joints must be provided. These are resumed in the synthetic resin system to be installed.

Shrink joints and passive cracks can be coated. This on condition that they are not used as dilatation joints or if they do not follow other movements of the structure and the substrate and that they are flattened with products that are complementary to the substrate and to the synthetic resin system to be installed.

• Mixer with spindle (min. 300 rpm)
• Trowel, spatula

Compacting rod and eventual a vibrating plate.

Masking tape.

If POLYAC® M mortar is applied in layers thinner than 10 mm, a suitable

POLYAC® primer has to be applied depending on the type of substrate.

• POLYAC® 12: Dry, form-retaining, mineral substrates.
• POLYAC® 14: Moving or less form-retaining mineral substrates, asphalt.
• POLYAC® 15: Metal.
• POLYAC® 18: Damp, form-retaining, mineral substrates.

(Always consult the POLYAC® primers technical data sheets) It is not necessary to place a primer on existing POLYAC® systems before applying POLYAC® M. Before applying the primer: Cracks, joints and other parts that show water leaks must first be made completely watertight and leak-proof. The surface must be mechanically pre-treated.

• this can be achieved by removing the dust by bullet- or sandblasting or by grinding the surface. Tiles are to be degreased well and grinded with a diamond blade. These treatments ensure that an open texture surface is obtained, to remove the cement skin from concrete and old remnants of coatings and adhesives. Always apply the products on a clean surface, free from adhesion reducing materials such as dirt, oil, grease, old coatings or surface treatments, …
• The parts of the surfaces to be overcoated that do not meet the requirements as described above (compressive strength, tensile strength, improperly bonded parts, …) must be removed.
• Remove any loose parts by brushing properly and remove dust with an industrial vacuum cleaner.
• The surface must be mechanically pre-treated. this can be achieved by removing the dust by bullet- or sandblasting or by sanding the surface.
• The degree of roughness for metal surfaces is SA 21/2. Remove rust by sandblasting. The surface must be dry and free of impurities such as grease, oil or dust.
• Galvanized steel is thoroughly cleaned in advance with water and soap or sandblasted. Degrease metal surfaces immediately after the mechanical preparation with SOLVENT MEK. After the SOLVENT MEK has fully evaporated, immediately apply a layer of POLYAC® 15 to prevent the steel from re-oxidizing.
• Install formwork if necessary.

Mix POLYAC® M well before use. Paraffin can separate during storage.

Depending on the layer thickness and the required fluidity, add the correct amount of POLYAC® M Filler to the POLYAC® M resin.

• ratio
• Layer thickness
• Mortar volume per 1 kg
• POLYAC® M resin after mixing in the fillers

POLYAC® M filler

Total 1 7 8 6 mm 1 kg POLYAC® M resin + 7 kg filler gives: 4,6 litre (or dm³) mortar

POLYAC® M filler

Total 1 8 9 10 mm 1 kg POLYAC® M resin + 8 kg filler gives: 4,9 litre (or dm³) mortar

POLYAC® M filler

Total 1 9 10 15 mm 1 kg POLYAC® M resin + 9 kg filler gives: 5,4 litre (or dm³) mortar POLYAC® M filler quartz 2 – 3 mm

Total 1 7 3 11

> 20 mm 1 kg POLYAC® M resin + 10 kg filler gives:

5,9 litre (or dm³) mortar

Mix intensively for at least one minute until a homogeneous mortar is obtained.

ULTRA FAST CURING, RIGID, PMMA BASED REPAIR MORTAR SYSTEM.

To be ordered separately:

Always work with clean mixing containers and application material.

After 1 hour (at 20°C), if desired, another POLYAC® system can be applied over POLYAC® M.

Conditions during the application and curing of the products.

The recommended processing temperature for substrate, environment, material and products is between +5°C and +35°C. For temperatures lower than +5°C please contact RESIPLAST NV.

Relative humidity: Max. 85%

Dew point: The temperature of the substrate and of the not fully cured product must be at least 3°C higher than the dew point. Avoid condensation on the surface from the moment that the preparations start until the complete curing of the products. Ensure adequate ventilation and a low relative humidity during curing.

Clean the used tools with SOLVENT MEK or ethyl acetate before the curing of POLYAC®-M. Cured products residues must be removed mechanically.

For cleaning and maintenance of the installed synthetic resin systems please refer to the information sheets:

• Cleaning and maintenance of synthetic resin floor systems – INDUSTRY
• Cleaning and maintenance of synthetic resin floor systems – PUBLIC

AND PRIVATE BUILDINGS.

• Cleaning solvent for tools: SOLVENT MEK or ethyl acetate

• Depending on layer thickness : quartz 2 – 3 mm

POLYAC® M Filler contains initiator. For applications up to +5°C do not add extra initiator. For temperatures under +5°C, please contact RESIPLAST NV.

See the box under “Product preparation”.

Store POLYAC® products in a dry, well-ventilated storage area between +5 and +35°C. Shelf life: 12 months after production date.

In case of doubt, please contact RESIPLAST NV and state the batch number on the packaging. Do not discharge into groundwater, surface water of sewers. Dispose of contaminated packaging and residues in accordance with the applicable legal requirements.

Carefully read the safety data sheets before using POLYAC® products. A characteristic odour arises during processing. Ensure adequate ventilation, keep away from sources of ignition and do not smoke. Avoid skin contact. Eye irritation and/or hypersensitivity may occur with severe vapour concentration, inhalation and/or skin contact. Do not store food (food, drinks) in the same workspace. Always wear personal safety equipment in accordance with the applicable local guidelines and legislation. Gloves and safety glasses are mandatory.

All values on this technical sheet are average values that result from tests carried out under laboratory conditions (20°C and 50% RH). Values that are measured on the construction site may show a slight deviation since the environmental conditions, the application, and the way of processing our products are beyond our control. Do not add any products other than those indicated on the technical documentation.

POLYAC® M<br />
20 kg Metal bucket<br />
180 kg Barrel<br />
To be ordered separately:<br />
POLYAC® M Filler 20 kg Bag<br />
Quartz 2 -3 mm 25 kg Bag