Intofort f300 is a foundation cement plaster with high mechanic resistances (Rc28gg >= 30 MPa). It can be applied manually or mechanically, it is formed of high quality ARS cements (high resistance to solphates), selected inerts with controlled granulometry and proper additives. Its composition allows to obtain a product with high mechanic resistances, excellent wall stability and a low reactivity to the breaking action of salts contained in old buildings walls. It is an excellent product for any kind of brick walls, stone or cement block walls. The high mechanic resistance, its elasticity, the low presence of soluble chloride and a balanced hydrometric shrinkage make the product excellent for static strengthening interventions in structures with low mechanic resistance by creating reinforced plasters.
Description
- Aspect: gray pre-mixed powder
- Use: cement plasters at high resistances
- Lay Foundations: Full bricks, perforated bricks, earthquake-proof block, cement blocks, natural stone walls slightly absorbent, tuff structures, cement plasters, reinforced polystyrene elements.
- Mixture Realization: plasterer machine, concrete mixer,blending drill
- Application: Mechanical with plasterer machine or manually
- Minimum depth: 15 mm
- Maximum depth per layer: 30 mm
- Maximum depth of final result: 60 mm
- Laying conditions: from +5 °C to +35 °C
- Consumption: 18 kg/m2 each cm of depth
Technical Data
- Pre mixed powder:
- granulometry: 0 – 3.5 mm
- Volume mass of the powder: 1450 kg/m3
- Fresh mortar:
- Water: 16%
- Mixture resting time: 0 minutes
- Mixture lasting time: 40 minutes
- Mass volume of fresh mortar: 1850 kg/m3
- Harden Mortar:
- Mass volume of harden and dry mortar: 1,750 kg/m3
- Average resistance to flexure after 28 days: ≥ 7.0 N/mm2
- Average resistance to compression after 28 days: ≥ 30 N/mm2
- Average resistance to adherence after 28 days on “fu“: ≥ 0.5 N/mm2 – A
- Absorbency water coefficient by capillarity “Cm“: ≤ 0.3 kg/(m2 min1/2)
- Thermal Conductivity “λ”: <= 0.9 W/m K
- Average Value of resistance factor to diffusion “μ”: <= 35
- Elasticity compression “E”: >= 15000 N/mm2
- Soluble chloride contained: <= 0.006 %
- Fire Reaction: Class A1
Features
- Traces Realization: 14 days
- Finishing renovation laying: 7 days
- Painting and coating laying: 28 days
- Levelling:
- outdoor-indoor: rasocap, racemp r1.4; racemp r0.5
- indoor: rasoges rg9; malta fine bagnata
- Tints:
- outdoor: Lavedil SQ; Lavelast; Siloxan pittura
- indoor: Pittura a calce; SUPER; White Fast; New Traspirante; New Super
- High level and quality Finishing:
- outdoor:: Frattazzato; Siloxan INTO
- indoor: INTONACHINO A CALCE
Packages
25 Kg paper sacks
Preservation
It lasts 9 months inside its intact package stocked in dry places.
Structural foundation plasters on indoor/outdoor walls and attics can be realized by using pre-mixed inorganic mineral mortar, fibered at high resistance, formed of ARS binders with a controlled granulometry (3.5 mm to mix only with clean water like Intofort f300 (Rc28gg >= 30 MPa). The laying-up can be mechanical or manual. The support must be clean, seasoned, compact and dry. The plaster must have a depth not lower than 1.5 cm until a maximum of 3.0 cm. Thicker layers can be applied after 24 hours leaving the surface trimmed by toothed spatula. Avoid depth higher than 6 cm. During the hardening phase, scrap the plaster to compact the surface and make it coarse in order to apply the final finishing.
Warnings
- Wet surfaces which are mainly absorbent before laying and avoid water spots left over.
- Only apply on clean, resistant and compact supports.
- Previously apply primer latex on smooth or scarcely absorbent supports and lay the plaster with “fresco su fresco” technique.
- Outdoors plasters must be made with 2 layers: make the first rendering layer and after 24 hours apply the second layer to complete.
- Walls having scratches that have not been filled with mortar, must be, at least 24 hours before the plaster application, filled up with stucco. The operation, especially for outdoor walls, is very important in order to avoid micro cracks.
- Pay attention to plastering application on brick walls surfaces that have concrete release agents left over.
- For reinforced plasters the net must be applied 1-2 cm from the support and covered with at least 3 cm of structural plaster.
- Since the plaster is very rigid, we suggest to finish it with high covering skills products and good deformability (Frattazzato, Siloxan Intonaco, Rasocap, Lavelast). These avoid cicro scrapes caused by thermal shocks.
- Apply proper dilatation joints especially for outdoor surfaces on wide walls.
- If you need to apply more layers, spread the plaster with a toothed spatula to create a coarse overlapping surface connecting the 2 layers.
- If you need to plaster mixed walls, you first need to make a proper rendering to compact the support.
- Connect structural elements (beams and pillars) by applying a proper metallic net.
- Do not apply on chalk, varnished, wood , metal or plastic foundations.
- Protect the laid up product from rain, freeze and thermal shocks caused by wind or sun for 48 hours.
- In hot and windy weather, after 24 hours from the lay-up, wet the surface twice a day for 7 days.
- Do not overlap the first and second layer if it is next to the metallic reinforcement. The net must be covered in a single mortar layer
