FONDO RASANTE R82/1
Self-levelling epoxy formulation – colourless, medium aggregate content with degassing and anti-settling admixture for bedding and for screeding floors with medium/thin coatings. USE: screeding medium and thin floor coatings and for AUTOMIX, MULTIMIX, and RINFOMIX.
FONDO RASANTE 82/1 has a self-levelling and workability power that enable it to even out the laying surface or floor foundation of an industrial floor making it homogenous.
Application is always completed with a quartz saturation sprinkle which serves two purposes: achieve a surface with an ideal and uniform grip and confer high resistance to wear and tear to the epoxy coating which will form the floor finishing.
|Compression strength (DIN 53454)||> 90||N/mm2|
|Resistance to bending and traction (ISO 178)||> 55||N/mm2|
|Traction elasticity modulus (DIN 604)||2900||N/mm2|
|Resistance to tear on dry concrete (*) (ISO 4624)||> 4,5||N/mm2|
|Resistance to tear on damp concrete (*) (ISO 4624)||> 2||N/mm2|
|Specific weight at 25 °C||1,70||Kg/dm3|
|A + B mixture ratio||100+15|
Values achieved after 7 day hardening at 25 °C
(*) adhesion values depend on the type of concrete. Cohesive break of substrate always takes place.
Preparation of the support
The surface to be treated must be clean, healthy, dry and crumbly part and cement grout-free: best adhesion is achieved by roughening it through smoothing with diamond wheels (00 grain) or buffing.
Carefully remove any trace of dust and dirt using an aspirator.
Application on metals requires careful preparation of the support: remove oils, fats, painting and rust through abrading or white metal sand-blasting (SA 2 – SA 3 degree).
Preparation of the product
Pour component B into component A and blend at slow speed for 3’ – 5’ using mechanical stirrer to reduce air inlet as much as possible; during this operation, carefully scrape also the sides and corners of the bucket.
Apply with palette knife with an average consumption of 1 – 1.5 kg/m² per layer and sprinkle spheroidal quartz.
To do reinforced smoothing, lay a fiberglass mesh on the surface: place the sheets one close to another without overlapping. Then cast the product on the mesh and spread it with a palette knife.
Packages are pre-weighed: completely use component A and component B. If you wish to divide the package, products must be weighed observing the A+B ratio shown on the label and must not be dosed in volume.
In case of partial use of the package, do not introduce the mixer in component A and then in component B.
Three essential rules are valid for all bi-component systems: weigh well, carefully mix bottom and walls, observe times of use.
Application with temperatures lower than +10 °C and higher than +40 °C is not recommended.
|10 °C||100 min||12 h|
|20 °C||45 min||7 h|
|30 °C||27 min||5 h|
|35 °C||20 min||3 h|
Full hardening after 7 days.
Time measured on a 150 g mass.
In case of simple smoothing, consumption is of 1 – 1.2 kg/m2 with 3 kg quartz sprinkle, usually 0.3 – 0.9.
To achieve reinforced smoothing with fibreglass mesh the product is applied in two layers: in the first one consumption is of 1.5 kg/m2 with 3.5 – 4 kg quartz sprinkle; in the second case you need 1 – 1.2 kg/m2 of product with 3 kg/m2 quartz sprinkle.
Available in packages (A + B component) 5,8 kg - 11,5 kg - 23 kg.
Packages must be kept vertically and sealed: the product remains unaltered for at least a year if kept in a dry and sheltered place at a temperature between 10 and 30 °C.