Altro Screed 5mm Rapicure standard, Altro Screed 5mm Rapicure slip-resistant

Transcription

1 Atro Screed 5mm Rapicure standard, Atro Screed 5mm Rapicure sip-resistant Sovent-free ow odour, rapid cure, epoxy screed Technica and instaation data sheet September 2016 Product description FeRFA 6 Atro Screed 5mm Rapicure is a fast cure, ow odour decorative epoxy resin system, comprising cear resin and cooured graded aggregates. Atro Screed provides a moderate eve of chemica and impact resistance. It is suitabe for use in medium to heavy duty areas. For areas where there is risk of a sip the Atro Screed 5mm Rapicure sip-resistant variant shoud be used. Atro Screed Rapicure standard sea coat is a cear soventfree epoxy, which reduces cure-times and provides a more rapid acquisition of resistance to spiage for an enhanced return-to-service time. Atro Screed Rapicure sip-resistant sea coat is a cear sovent-free epoxy, which offers the performance of Atro Screed Rapicure standard sea coat, with the added benefit of enhanced sip-resistance for areas where there is an increased risk of a sip*. Standard coours Atro Screed 5mm Rapicure variants are avaiabe in 39 standard coours. Bespoke coour systems require a minimum ead time and acceptance of a sampe. Advantages Fast return-to-service Sip-resistant surface variant Coveabe impervious finish Ease of ceaning Exceent water marking and chemica resistance Moderate impact and abrasion resistance Provides seamess foor finish (substrate joints must be cut through) Sustainabiity Atro s steps to sustainabiity program seeks to optimise our performance with respect to the panet s resources. Pease refer to for further information. Packaging Atro Screed 5mm Rapicure is avaiabe in a 23kg three part composite pack. Atro Screed Rapicure standard sea coat is avaiabe in a 2.3kg two part composite pack. Atro Screed Rapicure sip-resistant sea coat is avaiabe in a 3kg three part composite pack. Typica areas of use Circuation areas Laboratories Custodia areas Warehouses Pharmaceutica Canteens* CDT* Changing areas*

2 Chemica resistance AtroScreed 5mm Rapicure offers resistance to a range of commony used chemicas. However, premature or proonged contact with chemicas (incuding water during curing) may give rise to discoouration, staining and variation in goss. In a cases of chemica spiage, it is essentia that the spiage be immediatey removed and the surface washed down with cean water, removing water by wet vacuum after operation. Athough some chemicas may cause discoouration, this may not affect the durabiity and integrity of the resin screed. Pease refer to Atro and FeRFA Guidance Note No.3 for further information. Typica physica properties Atro Screed 5mm Rapicure Atro Screed Rapicure standard sea coat Atro Screed Rapicure sip-resistant sea coat Sip resistance DIN Shoes / oi BS 7976 Penduum test vaue (wet)-sider 96 Dependent on sea coat R9 R10 Dependent on sea coat Moderate potentia for sip 36 Low potentia for sip 40 Speed of cure 6-8 >20 C 6-8 hours >20 C 6-8 hours >20 C Over-coating time Light traffic 6-8 >20 C 24 hours > 20 C 48 hours >12 C 24 hours > 20 C 48 hours >12 C Working time C C C Return to service 3 > 20 C 5 12 C 3 > 20 C 5 12 C Atro Screed sip-resistant sea coats are not suitabe for use in bare foot shower areas. Coverage Atro Prime fast track 24m² per 5kg unit Atro Screed 5mm Rapicure 2.25m² / 23kg 5mm Atro Screed Rapicure standard sea coat 1st coat 9m² per 2.3kg unit 2nd coat 18m² per 2.3kg unit Atro Screed Rapicure sip-resistant sea coat 1st coat 7.5m² per 3kg unit 2nd coat 30m² per 3kg unit Atro Sea water-based matt Singe coat 100m² per 5kg unit Materia usage is dependent upon temperature, surface profie and porosity; stated coverage rates shoud be referred to for guidance ony and cannot be reied upon to determine exact quantities. Storage Ensure that the product is received in good order and store in a dry, frost-free environment, ideay between 15 C and 20 C for at east three days before aying. Excessivey high and ow storage temperatures wi affect the aying performance of the product. Suitabe substrates Atro Screed 5mm Rapicure may be appied to a variety of substrates incuding, but not imited to, concrete, poymer modified cementitious screeds, terrazzo, 25mm marine grade pywood (consut Atro for further guidance). For a proprietary subfoor systems refer to the manufacturer for recommendations and seek further guidance from Atro. FeRFA, The Resin Fooring Association, does not recommend Cacium Suphate, Anhydrite or Hemi-hydrite screeds for overayment with synthetic resin surfaces. Athough stringent quaity assurance processes are empoyed, when coour consistency is required, a singe batch shoud be used. We cannot guarantee batch matches between different batches of aggregate. Necessary transitions between batches shoud be panned for non-conspicuous areas. Dark cooured Atro Screed variants wi highight any defects such as roer ines and scratches.

3 Substrate requirements Substrates shoud be dry, structuray sound and free from contamination, friabe materias or aitance which may affect either the adhesion or penetration of the resin system. A residues of od paint coatings and dust must be removed. Substrates to achieve 26N/mm 2 compressive strength (BS EN ) and surface tensie strength 1.5N/mm² (BS EN ). Substrates must incude an effective damp proof membrane and contain residua moisture not greater than 5% by weight (75% R.H.) to BS Thin-bed synthetic resin systems foow the surface of the substrate, so it is essentia that the surface reguarity of fatness conforms to or exceeds BS cass SR2 (+/- 5mm under a 2 metre straight edge). Any deviation from this may require a surface improver to be appied which must be suitabe to receive an epoxy resin overay. Pease consut Atro or FeRFA Guide to the Specification and Appication of Synthetic Resin Fooring for further information. Substrate preparation Surface preparation is the most vita aspect of resin fooring appication. Inadequate preparation wi ead to oss of adhesion and faiure. The substrate in question wi dictate the method of preparation. In the case of a concrete foor, preparation by dust encosed diamond foor grinder may be appropriate, or if of a sufficient area for economic reasons, shoud be ighty shot basted to eave a textured surface free from contamination. If the foor has been treated with a cementitious surface improver, then the surface shoud be prepared in accordance with the manufacturer s recommendations, or abraded with an STR machine foowed by thorough vacuuming. Treatment of oca repairs such as cracks and hoes, improvement or modification of eves and remova of high spots, shoud be undertaken prior to the fooring instaation. Pease consut Atro or FeRFA s Guide to the Specification and Appication of Synthetic Resin Fooring for further guidance. Panning Before proceeding with the instaation, carefu consideration shoud determine the best way of instaing the Atro system. Efforts shoud be made to minimise day joints and optimise the open time of the product (i.e. minimise the distance between mixing and aying). It is best to aso consider the effect of externa infuences on the fina instaation (i.e. direction of ight from windows etc.). Time spent at this stage wi be invauabe towards the success of your instaation. The Atro Screed foor system is designed to be aid at a minimum of 5mm. Atro recommends that stainess stee mixing, aying and appication toos are used in this process. Meta transfer from mid stee toos may resut in discoouration of the screed which wi be unacceptabe to your customer. This wi be particuary noticeabe with pae coours, pease contact Atro for further guidance. Appication The foowing appication guide is based on aboratory and simuated site conditions. However, when instaations conditions differ appreciaby from those detaied by Atro, the performance characteristics of both mixing and aying may not be as expected. To achieve the best resuts at a times pease endeavour to estabish the correct conditions which in turn wi aow the materias to be aid effectivey, and meet your customer s expectations. Instaation conditions Appy in we ventiated areas. Both the sab and air temperature shoud be greater than 10 C and rising, up to 25 C. It is not advisabe to mix and ay epoxy resin products outside the range 10 C to 25 C. Ambient conditions shoud be maintained at east 3 C above dew point or beow 75% R.H. during the first 24 hours of cure. At site temperatures beow 10 C cure times wi be substantiay increased uness some form of externa heating is used. It must be recognised that the concrete sab temperature wi generay be ower than the air temperature, often as much as 10 C, and this wi govern the rate of cure. As the resin fooring cures, in condensing conditions moisture vapour may condense onto the surface and cause booming, a permanent couding of the surface. Mixing equipment Sow speed dri ( rpm), such as MM17 * Mixing padde, such as MR2 60B * Forced action mixer (stainess bades), such as RM65 * Stainess mixing vesse, such as RM65 drum * * A too number references reate to Refina Ltd Priming the substrate In order to achieve a uniform finish, prevent bubbes and maximise substrate adhesion, primer must be used. An Atro primer shoud be seected that is suited to the instaation and appropriate for the nature and moisture content of the substrate (seek further guidance from Atro). The appropriate Atro primer shoud be appied in accordance with the product data sheet. Whist the primer is wet, ighty seed with a sharp, medium size kin-dried aggregate (preferaby 0.7 to 1.2mm quartz in a coour to match the Atro Screed and eave to cure. Ensure that the primer provides a pore free continuous coat to fuy sea the substrate. Ensure that a hungry areas are addressed before proceeding to insta the system. If the overcoating time period for the primer is exceeded, the surface shoud be ighty abraded and vacuumed before further coats are appied.

4 Product instaation Remember to aways use the correct PPE. Using a sow speed dri and padde thoroughy mix together the base and hardener. Pour a the mixed base and hardener contents into a suitabe cean poypropyene or stainess stee mixing vesse. The aggregate shoud be added graduay into the pre-mixed binder, whist continuing the mixing action, and mix for a further 2-3 minutes in the forced action mixer. A singe padde Danes type mixer is unsuitabe for use with this product. Excessivey vigorous mixing shoud be avoided as this can ead to undesirabe air entrainment. Care shoud be taken to ensure that any materia adhering to the sides, bottom and corners of the mixer is thoroughy bended in. If the mixing area is not adjacent to the aying area the time required to transfer the mixed materia wi reduce the open instaation time. Using a cean stainess stee trowe or sedge appy the Atro Screed to the prepared primed substrate. Ensure that the system is being aid to the desired depth and fuy cosed off to eave a uniform compact surface. Because the fooring is hand finished, there may be sight variations in surface appearance resuting from the troweing. A skied operative wi endeavour to keep these to a minimum so that the overa appearance and performance of the fooring wi not be affected. Aow the Atro Screed to cure. The system must be seaed with two coats of Atro Screed sea. Ensure the surface of the resin screed is contamination-free and has been de-nibbed and thoroughy vacuumed as necessary. Aways use site overshoes to protect the screed. Atro Screed Rapicure standard sea coat Pour the contents of the hardener into the base unit, and using a sow speed dri and padde thoroughy mix the contents for two minutes. To ensure thorough mixing pour the materias into another container and mix again for a further minute. Ineffective mixing can ead to yeow staining in the sea coat. Appy the sea coat to the screed using a dense poypropyene foam squeegee, taking time to work the sea into the surface, ensuring that a porous areas of screed are fuy satisfied. Ro the surface with a short nap synthetic roer and eave to cure for not onger than 18 hours at 20 C. Mix and roer appy the finishing sea coat grouting into the screed using a dense poypropyene foam squeegee and ro the surface as before to eave a uniform cosed fim across the foor where a excess is removed. Faiure to remove excess may affect the sip resistance and appearance of the finished system. Do not food sea the Atro Screed as this can cause staining or discoouration, in the sea system. Atro Screed Rapicure sip-resistant sea coat Pour the contents of the hardener into the base unit and using a sow speed dri and padde thoroughy mix the contents for two minutes. To ensure thorough mixing pour the materias into another container and mix again for a further minute. Ineffective mixing can ead to yeow staining in the sea coat. Add the aggregate component. Mix for another minute unti uniform. Using a grouting foat, grout the Atro Screed sipresistant sea coat into the surface of the Atro Screed. Ensure that a porous areas of quartz are fuy satisfied. Remove any excess materia buid-up on the surface. Pre-wet a short pie poyester or nyon roer. Back roer the surface to form an even continuous coating. Leave to cure for not onger than 18 hours at 20 C. Mix and appy a tight second coat as above to eave an even cosed fim across the foor. Aways observe the coverage rates to ensure an even sip resistance of the finished system. Do not food sea the Atro Screed as this can cause staining or discoouration, in the sea system. Atro Sea water-based matt To achieve a cosmetic matt finish, the appication of a singe coat of Atro Sea water-based matt can be appied not more than 24 hours at 20 C foowing the fina sea. Pour the contents of the hardener into the base unit, and thoroughy mix using a sow speed dri and padde for two minutes making sure to incorporate a the matting agent in the base. Appy a very thin coat using a short nap synthetic roer appying the product to the foor from a paint tray. Heavy appication of this sea wi resut in an opaque appearance of the finished foor, therefore care is required in its appication. Ensure good air-fow and ventiation to assist with cure. Enough time shoud be given to aow the Atro Sea waterbased matt to reach its fu chemica cure. Physica drying of the surface aone is not indicative of the fu cure properties incuding wear and chemica resistance. Joints The spacing of movement joints must be determined by the design of the subfoor. A ive movement joints in the subfoor must be continued through the resin fooring, faiure to do so wi resut in ive cracks being refected through the resin finish. In a instances the type and positioning of movement joints shoud be agreed at the design stage between a parties concerned. Pease refer to Atro or FeRFA s Guide to the Specification and Appication of Synthetic Resin Systems for further guidance. A joints shoud be fied with Atro Expand fexibe jointing compound. Pease see Atro Expand data sheet for further information.

5 Protection Whist of an extremey durabe nature these foor systems must be thoroughy protected from the rigours and abuse that exist during the on-going contractua works. The resin foor shoud be ready for fu service in 3-4 days at 20 C. Untreated fet paper wi suffice as protection from ight traffic, however if protection is required from other trades then the foowing protection option shoud be considered. Where heavier access is required then a more suitabe medium to take the oadings, such as shuttering py or Correx by Cordek, shoud be paced on top of the untreated fet paper. The resin system shoud have cured for at east 24 hours prior to pacing the protection. No poyethyene sheets, inseed-treated hardboard, print or dyed card shoud be paced in contact with the resin surface. A joints in the protection medium shoud be taped, and a accidenta spiages shoud be recovered immediatey by remova and reinstatement of the protection. Damage wi occur to the system if the above guidance is not foowed. Ceaning (during instaation) A toos and equipment shoud be reguary ceaned using Atro Sove EP to reduce buid up and maintain the quaity of the instaation. Avoid contamination of the resin surface with sovent as this may cause ocaised boom to occur. Ensure that the correct PPE is worn at a times. Disposa Due diigence must be adopted if accidenta spiages occur. Recover using inert absorbent granues, transferring into a suitaby marked container. Disposa of a empty containers and accidenta spiages shoud be in accordance with the oca waste disposa authority. Ceaning guidance Optimum sip resistance and appearance can ony be maintained with reguar ceaning. The texture of the surface wi require mechanised ceaning; mop ceaning wi not be effective. Steam ceaners and / or hot pressure ceaners shoud not be used on the foor or was. A cod / ambient pressure washer may be used if required, but the pressure shoud not exceed 1400psi. Warm water wi offer improved ceaning, but the water temperature shoud not exceed 60 C Sweep or vacuum the foor to remove debris For norma ceaning, diute an akaine detergent such, as Atro Cean 44 or simiar, by 1:40 in cean water Aternativey, diute by 1:10 for infrequent heavy ceaning Liberay appy the water and detergent soution to the foor, scrubbing with a deck scrubber or sow-speed (< 400rpm) scrubbing machine and Atro UniPad or simiar Pay particuar attention to areas where residues may accumuate, such as interna corners of perimeter coves and around coumns etc If possibe, aow the detergent soution to remain on the foor for severa minutes to break down deposits, but not sufficienty ong to aow the soution to evaporate Remove the soution by wet vacuum recovery and foow this with a fresh water rinse, or rinse the soution into drains if permissibe It is important that a detergent residue is removed from the textured surface of the foor. Detergent may become sippery which affects safety, or sticky which attracts and hods more dirt Pease refer to materia safety data sheets prior to instaation. Aways wear correct PPE whist instaing Atro products. To order E-mai ResinSaesDesk@atro.com Ca Fax NOTE: Atro Ltd ( Atro ) endeavours to ensure that advice and information given in Product Data Sheets, Method Statements and Materia Safety Data Sheets (a known as Product Literature) is accurate and correct. However, where Atro has no contro over the seection of its products for particuar appications, it is important that any prospective customer, user or specifier, satisfies him / hersef that the product is suitabe for the intended appication. In this process, due regard shoud be taken of the nature and composition of the background / base and the ambient conditions both at the time of aying / appying / instaing / curing of the materia and when the competed work is to be brought into use. However, as site conditions and the execution of the work are beyond our contro, we accept no resutant iabiity. Atro s poicy is one of continuous research and deveopment and we reserve the right to update our products and information at any time without prior notice. Entrance matting wi reduce ceaning requirements and shoud aso enhance the ongevity of the foor, when combined with correct maintenance. If you d ike any more information or guidance pease get in touch, we re here to hep. te: fax: emai: enquiries@atro.com or expore