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REABILITA CAL AC is a dry mortar, exclusively formulated from Natural Hydraulic Lime, intended for the execution of finishes with an excellent permeability to water vapour in renovation and rehabilitation solutions of old coatings.

It incorporates carefully selected siliceous and calcareous aggregates and additions, having particular properties of thixotropy, vapour permeability and durability particularly adapted to be used in coating rehabilitation systems.

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2. 2 TECHNICAL DATA SHEET REABILITA CAL AC NATURAL HYDRAULIC LIME BREATHABLE FINISH Hardened Product Val ue Standard Compressive strength Class CS II EN 1015 - 11 Adhesion to brick and block / Mode of fracture ≥ 0,2 MPa / B EN 1015 - 12 Modulus of elasticity 1750 - 2250 N/mm2 BS 1881 - 5 Density 1200 ± 150 kg/m3 EN 1015 - 10 Capil l ari t y (24h) ≥ 0,3 kg/m2 EN 1015 - 18 Permeability to water vapour ≤ μ 15 EN 1015 - 19 Water penetration after capillarity test < 5,0 mm EN 1015 - 18 Reaction to fire Class A1 EN 988 - 1 Thermal conductivity 0,45 W/(m.K) (P=50%) NP EN 1745 4. AP P LICA TION a) Substrate preparation Substrate s prepared with REABILITA CAL RB , REABILITA RA 01 , REABILITA CAL HP , REABILITA RA 05, ecoCORK RENDER, ecoCORK Lime One mortars and other filling and levelling renders of SECIL TEK range are able to rece ive REABILITA CAL AC . External thermal insulation sy stem s of the ISOVIT CORK type are also able to rece ive this finish mortar . In the case of direct application on other kind of renders, these should be regular, co h es ive , clean and without any type of material that affects the normal adhesion conditions .

4. 4 TECHNICAL DATA SHEET REABILITA CAL AC NATURAL HYDRAULIC LIME BREATHABLE FINISH 6. HEALTH AND SAFETY (DOES NOT REPLACE CONSULTATION OF THE PRODUCT SAFETY DATA SHEET )  Irritating to eyes, r espiratory system and skin;  May cause sensitization in contact with skin;  Do not breathe dust;  Avoid contact with skin and eyes;  If it comes in contact with eyes, rinse immediately and thoroughly with water and seek a specialist advice;  Use protective clot hing and appropriate gloves;  Keep out of children’s reach . 11 REABILITA CAL AC EN 998 - 1 Renovation (R) mortar for indoor and outdoor coatings Declaration of performance DOP.03003 Being the conditions of applying our products out of our reach we d o not take responsibility for its misuse. It is the customer’s duty to verify the suitability of the product for the intended purpose. In any case, our responsibility is limited to the value of the goods sup plied by us. The information contained in the pre sent data sheet may be altered without prior notice. In case of doubt and if you need any further advice please contact our Technical Services . Revis ion of A ugust 2019 FT. 0300 3 .0 2 EN

3. 3 TECHNICAL DATA SHEET REABILITA CAL AC NATURAL HYDRAULIC LIME BREATHABLE FINISH b) Mortar preparation REABILITA CAL AC should be mix ed with water in the propor tion of 4,5 to 5,0 litre s p er 25 kg bag , in small q uanti ties and using an ele ctric mixer , so as to obt ain a uniform and lump - free paste. Strict cont rol of the mixing water is fundamental and decisiv e to ensure uniformi ty of mortar mix . c) A p plica tion A fter mixing , REABILITA CAL AC should be applied in two layers, at least . T otal coating thickness should not exceed 3 mm. Whenever possible, complete pane ls should be done so as to minimiz e work joints . In this opera tion, each panel should be covered under the same temperatur e , sunlight , wind and humid ity conditions , at the risk of , in case of variation in drying , final colour variations occurring . The fina l surface of REABILITA CAL AC should be trowelled and a fine sanded finish or a rustic smooth finish may be obtained . It may also be used as a base to rece ive smooth finishes such as REABILITA CAL AC Fino . When repa iring renders o r in re h abilita tion works that require the execu tion of large thicknesses, incorporation of glass fibre mesh with anti - alkali treatment , SecilTEK Rede 160, should be provided for, over the first layer of REABILITA CAL AC while still fresh . The painting s ch em e to be carried out sho uld be ap pli ed 14 d ays after and it should be of silicat e base or aqu e o us base with good water vapour permeability . If REABILITA CAL AC is applied as final finish to colour, it is advisable to apply the REDUR AD 40 water - repellent impregnation for greater durabili ty of the final appearance . d) Restriction s REABILITA CAL AC should not be applied at room and substrate temperatures below 5 °C and above 30 °C. It has a curing period of 28 days. In hot and/or dry weather or when substrate s are directly exposed t o sun light , the substrate should be previously wetted and application should only be started when it is dry . Under these conditions daily watering of the surfaces should be carried out, for one week, so as to keep renders permanently moist. Application in the presence of strong winds may cause render cracking. In such case, walls should be protected so as to minimize the effects of wind action. 5. PACKAGING AND VALIDITY Packaging 25 kg paper bags in plasticized pallets of 60 bags . Valid ity 12 months pro vided the conditions of the original packaging remain unaltered and in good storage conditions, protected from extreme temperature and humidity .

1. 1 TECHNICAL DATA SHEET REABILITA CAL AC NATURAL HYDRAULIC LIME BREATHABLE FINISH 1. DESCRIPTION REABILITA CAL AC is a dry mortar, exclusively formulated from Natural Hydraulic Lime , intended for the e xecu tion of finishes with an exce l lent permeabili ty to water vapo u r in renovation and rehabilitation solutions of old coatings. I t i ncorpo ra tes carefully selected siliceous and calcareous aggregates and additions, having particular properties of thixotropy , vapour permeabili ty and durabili ty particular ly adapt ed to be used in coating re h abilita tion systems . 2. FIELD OF USE REABILITA CAL AC is used as a finish in the maintenance and re h abilita tion of buildings , n amely when external coatings of old building facades are intended to be re c overed , that require high levels of water vapour permeability . The exclusiv e use of the Natural Hydraulic Lime binde r and its special composition results in an excellent physical - chemical behaviour and mechanical performance in connection with the diverse materials constituting this type of substrate s . REABILITA CAL AC is a fine render that al lows fine sanding fi nishes to be obt ained over replacement renders such as REABILITA CAL RB o r REABILITA RA 01 o r over mortars for the tr eatme nt of uprising damp and salts REABILITA CAL M P o r REABIL I TA RA 05. REABILITA CAL AC may be used on old renders provided that they hav e adequate physical and mechanical preservation conditions . REABILITA CAL AC is also an integral part of the ETICS system , ISOVIT CORK , a external thermal insulation composite system based on natural hydraulic lime and cork panels with an ETA. It may also be applied to other coating systems, namely ECO CORK RENDER and ECO CORK L IME . Since these are specific situations in each rehabilitation work, our Technical Services should be consulted at the time of product selection . 3. PRODUCT CHARACTERISTICS Powde red product Val ue Co lou r Natural, White , Sand , Y ellow , Dark yellow , Pink , Antique r os e , Salm on , Brick , Blue , Dark blue , Mi nt, Light grey and Grey Granulometry < 1,0 mm Paste product Val ue Mixing water 20,0 ± 1,0 % Theoretical consumption 1, 20 kg/m2/ mm


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  • 21 www.biomat.be
  • 22 www.biomat.nl
  • 3 www.biomat.eu