Morcem^® Pasta de Fraguado 2H

Composition

Product based on inorganic mineral loads, calcium sulphate and additives.

Features and applications

• Application with jointing tape for complete joint treatment (filling and finishing) in plasterboard systems. 
• Plastering over screw heads. Forms a smooth and flat surface.
• More stability to weather conditions than a standard air-drying paste.
• Working time: 2 hours from the beginning of the mixing process.
• The product enables the treatment of joints in one work session.
• Perfect when working in severe weather conditions (cold or humidity).
• Prepares the surface for decoration works. Reparation of areas that may have sustained minor damaged during installation or to correct slight irregularities in the boards.
• Not suitable for tapeless joints treatments.

Substrates

• Laminated plasterboards.
• The supports should be resistant, stable, strong and clean, free of dust, remnants of release agents, organic products, etc.

Instructions for use

• Mix with clean water (10 liters per 20 kg bag). Stir with a mechanical mixer to obtain a homogeneous consistency, easy to work with and without lumps.
• Let the mixture stand for 5 minutes.
• Fill the joints with the paste and apply the jointing tape.
• Flatten with a spatula and remove the excess. Remove any lumps, bulges or air pockets under the tape. Leave until it is completely dry. Apply successive layers of paste according to the required level of finish, complying with the drying period between layers.
• Apply 2 to 3 layers of paste on screw heads.
• Use edge protectors and joint tapes on corners.
• Each coat should be a slightly wider than the previous one.
• Apply the decoration layer after the treatment of the joints ensuring that the applied paste is completely dry, free of dust and clean.
• Water absorption of the boards and the paste must be regulated before the finish layer using a primer or plaster recommended by the manufacturer.

Cautions and recommendations

• Do not apply below 5ºC nor above 30ºC.
• It should not be applied above  85 % of humidity.
• In case of high humidity levels, the use of dehumidifiers may be required.
• It is necessary to comply with the drying times between layers to avoid shrinkage and cracks.
• Avoid mixing in dirty or contaminated containers with other mixtures, since this may cause the acceleration of the setting time.
• Do not use tools with remnants from other mixtures.
• Do not mix with other products.
• Do not apply or mix the product when there is risk of frost.
• Icy temperatures or high relative humidity can reduce the adhesion capacity of the paste.
• The area in which the product is going to be applied should be sufficiently ventilated, to avoid excess humidity.
• Not suitable for tapeless joint treatment.
• Do not return the excess of paste to the container with the rest of the mixed paste.

Packaging

20 kg plastic-lined paper bags
Shelf life: 1 year in sealed original packaging, sheltered from weather conditions and humidity.

Technical data

* Approximate consumption level per m 2  of finely adjusted edges, without taking into account peripheral joints or waste.

Note