Disboxid 472 AS-Deckschicht - .Ferric (III) chloride solution, saturated + (D) ... (RH), approx

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Transcript of Disboxid 472 AS-Deckschicht - .Ferric (III) chloride solution, saturated + (D) ... (RH), approx

Technical Information No. 472

Disboxid 472AS-DeckschichtPigmented, conductive, self-levelling 2-component liquid epoxyresin. Suitable for floor coatings exposed to high mechanicalloads.

Product Description

Suitable for interior mineral floorspaces exposed to high mechanical loads, requiring resistance toearthRE 60 N/mm2

Technical Information No. 472

Chemical resistance table in accordance with DIN EN ISO 2812-3:2007 at 20 C

7 days

Acetic acid 5 % sol. + (D)

Acetic acid 10 % sol. + (D)

Hydrochloric acid 10 % sol. + (D)

Hydrochloric acid 30-32 % sol. + (D)

Sulphuric acid 10 % sol. + (D)

Sulphuric acid 20 % sol. + (D)

Citric acid 10 % sol. +

Ammonia solution 25 % +

Calcium Hydroxide +

Caustic potash solution 50 % +

Caustic soda solution 50 % +

Ferric(III) chloride solution, saturated + (D)

Lysol solution 2 % + (D)

Magnesium chloride solution 35 % +

Distilled water +

Common salt solution, saturated +

White spirit (solvent naphta) +

Benzine (Petroleum ether) / cleaning solvent +

Xylol + (D)

Ethanol + (D)

Benzine acc. to DIN 51 600 (fuel/petrol/gasoline) + (D)

Premium gasoline + (D)

Kerosene + (D)

Heating and Diesel fuel +

Motor oil +

Coca-Cola + (D)

Coffee + (D)

Red wine + (D)

Skydrol (hydraulic fluid/medium/oil) +

Transformer coolant +

Legend: + = Resistant, (D) = Discolouration* Corresponding to the test principles for protection of waters as per DIBt.

Chemical resistance

Technical Information No. 472Application

All types of interior mineral substrates.The substrates must be sound, dimensionally stable, solid, dry, clean, and free from loose/brittleparticles, dust, oils, fats/greases, rubber wear debris (skid marks) or other substances that mayprevent good adhesion.Cementitious cast mortar screed, upgraded with synthetic resin, must be checked for compatibility bytrial coatings, if necessary.The pull-off (adhesive/tensile bond) strength of substrates must be 1.5 N/mm on an average, with aminimum individual value of 1.0 N/mm.

Substrates must have achieved their equilibrium humidity:Concrete and cement-based composition floor (screed): max. 4 % by weightAnhydrite screed: max. 0.5 % by weightMagnesite screed: 2 - 4 % by weightXylolithe (Magnesium Oxychloride) screed: 4 - 8 % by weightRising damp/moisture must be avoided. For anhydrite and magnesite screeds complete sealing fromcontact with ground is essential.

Suitable Substrates

Prepare the substrate by suitable means, e.g. ball blasting (shot peening) or milling, in order to fulfilthe above mentioned requirements. Always remove existing 1-component coatings and non-adherent2-component coatings.Clean and roughen (flatten) vitreous surfaces and surfaces of rigid 2-component coatings by sanding/grinding or blasting or prime with Disbon 481 EP-Uniprimer.Repair spallings and defects with Disbocret PCC or Disboxid EP mortars, filling them flush with thesurface.

Substrate Preparation

Add the hardener to the base material and stir intensively with a suitable low-speed electric paddlemixer (agitator; max. 400 rpm), until a homogeneous, streak-free colour shade is achieved. Pour themixture into another clean container and continue stirring.

Preparation of Material

Base : hardener = 4 : 1 parts by weightMixing Ratio

Apply with short-pile roller, suitable squeegee (scraper/wiper, V-notched, made of metal or hardrubber), spiked roller.

Method of Application

Priming CoatPrime mineral substrates with Disboxid 462 EP-Siegel Neu (New), filling all pores. Apply the primerwith a smooth hard rubber wiper (squeegee) working in back-pull technique, then treat the surfacecrosswise by roller.Consumption*:Disboxid 462 EP-Siegel Neu (New): approx. 300 - 400 g/mRecoat the applied priming coat within 24 hourswith Disboxid 471 AS-Grund, if not being sand-treated.

Scratch-Filler (if necessary)Level rough, porous substrates after priming with an additional scratch-filler coat.Consumption*:Disboxid 462 EP-Siegel Neu (New): approx. 660 g/m per mm of coating thicknessDisboxid 942 Mischquarz: approx. 1 kg/m per mm of coating thickness.

Alternatively the following products can be used for priming and scratch-filler application, as perrequirement:Disboxid 420 E.MI PrimerDisboxid 460 EP-GroundDisboxid 461 EP-FillerPlease note: If Disboxid 462 EP-Siegel Neu (New) is used for priming/scratch-filler application, thenthe surface must be recoated within 24 hours. Intermediate grinding is obligatory for longer waitingtimes. For all other priming materials follow the waiting times given in the corresponding TechnicalInformation. For further details please see the corresponding Technical Information.A system coating as per AgBB test criteria is not possible, if Disboxid 460 EP-Ground and Disboxid461 EP-Filler are used.

Laying the Earthing ConnectionsAllow the priming coat to harden, then stick self-adhesive copper strips Disbon 973 (length: approx. 50cm) circulating the wall area (see figure) in a distance of max. 20 m. A minimum of two earthconnections is required. For this purpose use the contact points of Disboxid 975 Leitset (conductiveset).Surfaces that are separated by joints must be separately grounded. A maximum distance of 20 mbetween copper strips has to be respected in case of large seamless surfaces.Clean the surface of applied copper strips with a cloth, wetted with thinner Disboxid 419 Verdnner.The copper strips must always be connected by an expert for electrical supply with the earthing/grounding of the building after having finished all coating procedures.

Surface Coating System

Technical Information No. 472

Layout for Earthing Connections:

1. Disbon 973 Kupferband2. Braided wire made of copper, 4 mm for connection to the earthing/grounding (ring line)

Conductive Intermediate CoatingRoller-apply a conductive coating of Disboxid 471 AS-Grund on the priming coat. Allow theconductiveintermediate coat to harden, then, before applying the finishing coat, check for sufficientconductivity.The resistance to earth must not exceed 5 x 104 ohm. Distance between measuring electrode andground connection should be between 8 to 10 meters. Additional earthing connections must beinstalled, if the resistance is higher.Consumption*:Disboxid 471 AS-Grund: approx. 100 g/mDisboxid 5022 WHG-Leitschicht: approx. 120 g/m

Note: Ensure sufficient ventilation during drying and curing phases.

Top CoatingConductive flow coating (self-levelling) with Disboxid 472 AS-Deckschicht for floorspaces subjected tohigh mechanical loads.

Cast Disboxid 472 AS-Deckschicht to the floorspace and spread evenly with a notched hardrubbersqueegee (approx. 3 mm V-notching)**. Then draw with the reverse side of squeegee over the freshlyapplied coating. Leave to stand for approx. 10 minutes, after that it is essential to deaerate the surfacewith a spiked roller in orderto obtain an alignment of carbon fibres.Consumption*:Disboxid 472 AS-Deckschicht: approx. 1.5 - 2 kg/m

Note: On principle only one coat of materialis applicable. This applies for all top coatings. For repairsor reworks a conductive intermediate coat of Disboxid 471 AS-Grund (including earthing) is alwaysrequired.

*Determine the exact amount of material required by coating a test area on site.**Only for recommendation. The required notching is always depending on the wear resistance oftools, temperature and substrate requirements.

Priming CoatDisboxid 462 EP-Siegel Neu (New) approx. 300 - 400 g/m2

Scratch-Filler (if required)Disboxid 462 EP-Siegel Neu (New)Disboxid 942 Mischquarz

approx. 660 g/mapprox. 1 kg/mper mm of coating thickness

Conductive CoatingDisbopox 471 AS-Grund orDisboxid 5022 WHG-Leitschicht

approx. 100 g/m2approx. 120 g/m

CoatingDisboxid 472 AS-Deckschicht(approx. 3 mm V-notches*) approx. 1.5 - 2.0 kg/m2

Consumption

*Recommendation only. Notching is depending on the wear resistance of tools, temperature andsubstrate requirements.

At 20 C and 60 % relative humidity (RH), approx. 45 minutes.Higher temperatures shorten and lower temperatures extend the pot life.

Workability

Temperature of Material (Product), Ambient Air and Substrate:Temperature must remain at a min. of 10 C, max. 30 C.Relative humidity must not exceed 80 %. The substrate temperature should always be min. 3 Cabove the dew point temperature.

Application Conditions

Technical Information No. 472

Waiting time between priming coat of Disboxid 462 EP-Siegel Neu (New)and intermediate coat: min.12 hours, max. 24 hours.Waiting time between Disboxid 471 AS-Grund and top coating: min. 16 hours, max. 2 days.Higher temperatures shorten and lower temperatures extend these waiting times.

Waiting Time

At 20 C and 60 % relative humidity, walkable after1 day. Completely hardened after7 days. Lowertemperatures extend the curing time. During hardening/curing (approx. 24 hours at 20 C), the appliedcoating has to be protected against moisture to avoid surface faults.

Drying/Drying Time

Clean tools/equipment immediately after use or during longer breaks with suitable medium as pertable below.

Tool Cleaning

Product Cleaner

Disboxid 462Disboxid 472

Disboxid 419 Verdnner

Disboxid 471Disboxid 5022

Water or warm soapy water

Advice

Current information on request.German Certificates

Follow the general advice for cleaning and care of Disbon floor coatings.Cleaning and Maintenance

For professional use only.