PRO THC 404

PRO THC 404 is a one-component, fiber reinforced, cement-based mortar modified with polymer additives. It is a specialized product recommended for bonding thermal insulating plates from extruded or expanded polystyrene (EPS, XPS) and rock wool on any type of building surfaces. It consists of cement, quartz sand, limestone fillers and special additives. PRO THC 404 presents a very strong attachment on all the usual substrates, high elasticity, resistance to frost and humidity. It is suitable to use both indoors and outdoors. PRO THC 404 adhesive is a CS IV category mortar that complies with EN 998 European standard. PRO THC 404 has received an Environmental Product Declaration (EPD) following an assessment of its life-cycle environmental impacts.

• PRO THC 404 is used as an adhesive as well as a basic layer for thermal insulating plates for the outdoor thermal façade system (ETICS) of THRAKON.
• For strong bonding of: extruded polystyrene (XPS), expanded polystyrene (EPS), hard glass wool, cork
• On substrates of: concrete, lightweight concrete, bricks, cement blocks, aerated concrete (YTONG), self-levelling floors, mortars, level masonry with filled joints
• PRO THC 404 adhesive can be used in combination with glass fiber mesh in order to cover the joints of different types of masonry and the conduits made by electricians and plumbers, to reinforce the edges of the openings (in doors and windows) in order to avoid future cracking.

• Produced with quartz sand
• Attachment and plastering of thermal insulating plates with a single product
• Local reinforcement of surfaces that develop cracking tensions
• Strong resistance to elastic deformation
• Strong adhesion
• Strong resistance – rapid application
• Resistance to humidity and frost
• Excellent workability
• Complies with EN 13499 & ETAG 004 European standards

• The application substrate must be even, free from frail and foreign parts, like residues of mud, plaster, color, oils and free from large crevices. Additionally, the substrate must be stable and free from shrinkage and deformation tensions. It also must not accept any vibrations. Place the plates’ guides and supports wherever it is necessary.
• During the application and also during the following 24 hours the ambient and the substrate temperature must be between +5o C and +35o C. the adhesive can be cleaned with water while it is still moist. After it hardens, it is removed mechanically. Application is not recommended when there is a frost forecast for the following 24 hours, under wet conditions (rain) or on masonries directly exposed to intense solar radiation or warm substrates. After the mortar dries completely, we apply the final decorative plaster using one of the decorative coats of THRAKON.
• In a clean container we add 6.0-6.5 litres of clean water and we gradually empty the content of a 25 kg of the PRO THC 404 product while mixing continuously with an electrical agitator, in order to produce a homogenous mortar mass.
• Allow the produced mixture to mature for 5 minutes and briefly reagitate. The mixture is ready to use within the next 4 hours.
• After the preparation of the mixture, do not add additional water to correct the workability of the mortar. This shall lead to a decrease of its resistances and to an increase of its shrinkage.

Store in sealed bags in a dry environment at temperatures above 0o C for 12 months from the production date.