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constructive solutionsFosroc® Nukote ST

Uses

Anti-corrosion, waterproof and protective coating for concreteand steel in a wide range of environmental conditions. Typicalapplications include:

Marine environments

Food processing plants

Cold storage facilities

Secondary containment, water & waste water treatment

Car parks, warehouses

Industrial/manufacturing facilities

Airports

A component of the Fosroc basement waterproofingsystem

Advantages

Environment friendly - zero VOC

Excellent chemical resistance, thermal stability and UVresistance

Very low turn-around time. The coated substrate can be putin to full service within the hour

Strong impact, abrasion and puncture resistance

Seamless and monolithic, including field joints

Significantly enhances the durability of reinforced concrete

Low permeability values

Can be applied at ambient temperatures between –30°Cto 70°C

Designed for service temperatures from –30°C to 120°C

Description

Fosroc Nukote ST is a two part, 100% solids, aromatic purepolyurea elastomeric coating. It displays excellent chemicalresistance, thermal stability and UV resistance in both ambientand elevated process temperature applications.

Fosroc Nukote ST is available in black and medium greycolours.

Two component, fast curing pure polyurea system suitablefor anti-corrosion, waterproofing and protectionapplications

Specification

Where mentioned in the contract drawings, the protective andwaterproof coating shall be Fosroc Nukote ST; a 100% solids,elastomeric, pure polyurea coating system, providing highcorrosion, abrasion and thermal shock resistance. It shallalso meet values stated under section “Properties”.

Properties

Physical properties @ 24°CSolids by Volume : 100%Volatile Organic Compounds : 0 g/lViscosity (cps) @ 25 °C : Comp A: 650 -750

Comp B: 650 -750Tensile StrengthASTM D-412 : >15 N/mm2

Elongation @ 25 °CASTM D-412 : 375% - 450%Hardness (Shore D)ASTM D-2240 : 45- 50Flexibility 3mm mandrelASTM D-1737 : PASSTear StrengthASTM D-624, Die C : >75 kN/mFire RatingUBC : Class IIService Temperature Range : -30°C to 120°CAbrasion Resistance : <15 mg lossASTM D-4060 (1kg wt - 1000 cycles

CS 17 Wheel )

Processing properties @125 microns/24°C/54% RHGel Time (Adjustable) : 6-20 secondsTack Free(125 Microns brushed) : 30-45 secondsPost Cure : 24 hoursVolume Ratio (A: B) : 1:1Block Temperature : 60°C to 71°CHose Temperatures (A and B) : 60°C to 71°CConstant Pressure : 136 bar

Fosroc® Nukote ST

Chemical Resistance(ASTM D3912) 24h immersion :Chemical Name ResultsAcetic Acid (5%) RAnti-freeze RBrake fluid (DOT3) RCHydrochloric acid (20%) RMotor Oil R-DISSodium Hydroxide (10%) RSulphuric Acid (10%) R-DISTransmission fluid RJet Fuel JP4 RCXylene RCDiesel Fuel RGasoline R

Note : R= recommendedRC= Recommended Conditionsl, some effects,including swelling, Discolouration, Cracking -wash down within one hour to avoid effectsNR = Not recommendedDIS = Discolouration Only

Clarification of property values

The physical properties shown in the above table are definedin a range of values to allow for compliance when testing ofsprayed films or laboratory draw down films. Results derivedfrom independent testing will fall within the ranges shown if thetesting performed complies with the standards utilised for eachindividual property shown. Results vary dependent on severalfactors, including the equipment utilised, product mix ratios,application pressures, application temperatures, dry filmthickness, age of sample tested, etc. Results also vary dependenton the film type tested with laboratory draw down films derivinghigher properties than sprayed films. Test results from films ofat least 30days in age will provide higher values thatn resultsfrom younger films as chemical cross-linking requires this timeperiod to complete.

Instructions to Use

Surface preparation

All surfaces must be smooth, sound and free from debris,loose or flaking material and areas of standing water. Surfacesmust be free from contamination such as oil, grease andorganic growth. Concrete surfaces must be fully cured, laitencefree and free from any traces of shutter release oils and curingcompounds.

To achieve the above, it is recommended that the surface beblast cleaned and all blow holes and imperfections be filledwith Nitomortar FC*† or Nitomortar FC(B)*† . Consult the localdata sheet for pot life and overcoating times.

Priming

The substrate should be primed as detailed below:

For concrete, stone, brick, epoxy or polyurethane surfaces useNitoprime 25*.

For metal surfaces use Fosroc Nukote Primer 1*†.

For application as a topcoat over another Fosroc Nukotesystem, priming is not necessary if the overcoating is conductedwithin 6 hours of application of the base coat. If the overcoatwindow exceeds 6 hours, priming will be necessary. Pleasecontact local Fosroc office for recommendation.

Mixing

Fosroc Nukote ST should be applied by specialist applicationequipment and by specialist applicators approved by Fosroc.

Fosroc Nukote ST should not be diluted under any circumstance.Use appropriate solvent for purge line and flushing of equipmentand if spraying stops for a period of time in excess of the potlifeof the material, throughly mix Fosroc Nukote ST part B resinmaterial with air driven power equipment until a homogenousmixture and colour is obtained.

Fosroc® Nukote ST*

Application

This material must be applied utilizing high-pressure, heatedplural component spray proportioning equipment, such asthose manufactured by GlasCraft, Gusmer and Graco.

Cleaning

Cured product may be disposed without restriction. The un-cured isocyanate and resin portions should be mixed togetherand disposed in a normal manner. “Drip free” containersshould be disposed according to local environmental laws andordinances.

Limitations

Fosroc Nukote ST is formulated for application to clean,sound concrete and steel.

Fosroc Nukote ST should not be applied over existingcoatings.

Fosroc Nukote ST should not be opened until ready to use.Adding a nitrogen blanket is strongly recommended.

Under constant exposure to ultraviolet light the productsphysical properties will not be effected but colors will darkenand gloss will fade uniformly.

For full colour stability, Fosroc Nukote ST should beovercoated with Fosroc Nukote PA.

Technical support

Fosroc offers a comprehensive technical support service tospecifiers, end users and contractors. It is also able to offeron-site technical assistance, an AutoCAD facility and dedicatedspecification assistance in locations all over the world.

Estimating

SupplyFosroc Nukote ST : 400 litre drum sets

CoverageFosroc Nukote ST : 1m²/litre

@ 1000 microns wft per coat

Note: The coverage figure is theoretical – due to wastagefactors and the variety and nature of substrates, practicalcoverage figures may be reduced.

Storage

Shelf life

All products have a shelf life of 12 to 18 months if kept in a dry,air conditioned store between 5°C and 50°C in the original,unopened containers. The use of drum heaters is encouragedto reduce material viscosity at temperatures below 10°C.

Storage conditions

Store in dry conditions at temperatures between 5°C and 50°Cin the original, unopened containers. If stored at hightemperatures the shelf life will be reduced.

Precautions

Health and safety

Fosroc Nukote ST should not come in contact with the skinand eyes, or be swallowed. When using Nucote HT ensureadequate ventilation and avoid inhalation of vapour. Somepeople are sensitive to resins, hardeners and solvent.

Wear suitable protective clothing, gloves and eye protection.The use of barrier creams provides additional skin protection.In case of contact with the skin, rinse with plenty of clean water,then cleanse with soap and water. Do not use solvent.

In case of contact with eyes, rinse immediately with plenty ofclean water and seek medical advice. If swallowed, seekmedical attention immediately – do not induce vomiting.

Fire

Fosroc Nukote ST is non-flammable.

For further information, refer to the Product Material Safety Data.

Fosroc® Nukote ST

INDIA/0779/A

Important note :Fosroc products are guaranteed against defective materials and manufacture and are sold subjectto its standard terms and conditions of sale, copies of which may be obtained on request. WhilstFosroc endeavours to ensure that any advice, recommendation specification or information it maygive is accurate and correct, it cannot, because it has no direct or continuous control over whereor how its products are applied, accept any liability either directly or indirectly arising from theuse of its products whether or not in accordance with any advice, specification, recommendationor information given by it.

telephone fax e-mail

++91 80-2334 3188 ++91 80-2334 3178 india@fosroc.com

Fosroc Chemicals (India) Pvt. Ltd.Head Office‘Vishnu Chittam’, No. 10, 2nd FloorSirur Park B Street, SeshadripuramBangalore 560020www.fosroc.com

® Denotes the trademark of Fosroc International Limited

Regional OfficesBangalore Mumbai Delhi Kolkata‘Vishnu Chittam’, No.10, 1stFloor 208/209, Persepolis 109-113, 1st Floor, Vikrant Towers P-569, Lake Terrace Extn.Sirur Park B Street, Seshadripuram Sector 17, Vashi 4, Rajendra Place First FloorBangalore 560 020 Navi Mumbai 400 703 New Delhi 110 008 Kolkata 700 029Ph:080-2334 3188 Ph:022-2789 6411/12 Ph:011- 45062000-5 Ph: 033 24650917 / 55343188Fax : 080-23368667 Fax: 022 - 2789 6413 Fax: 011- 45062001 Fax: 033-24650891email: Bangalore@fosroc.com email:Mumbai@fosroc.com email:Delhi@fosroc.com email:Kolkata@fosroc.com

Ahmedabad : (079) 26762799 Ankleshwar :(02646) 220704/224687 Bellary: 09845891690 Bhubaneshwar : (0674) 2521176 Chennai : (044) 24899949/24853383 Chandigarh : (0172) 2639360 Cochin : (0484) 2347465 Coimbatore : (0422) 2472966 Goa : (0832) 09423058696 Guwahati : (0361) 2462866 Hyderabad : (040) 27662324/27662425 Indore : (0731) 4049339 Jaipur : (0141) 2336103 Lucknow :(0522) 2239044 Nagpur: (0712) 2753510/2563242 Visakhapatnam : (0891) 2564850 / 2707607

Additional Information

Fosroc manufactures a wide range of complementary productswhich include :

waterproofing membranes & waterstops

joint sealants & filler boards

cementitious & epoxy grouts

specialised flooring materials

Fosroc additionally offers a comprehensive package of productsspecifically designed for the repair and refurbishment ofdamaged concrete. Fosroc’s ‘Systematic Approach’ to concreterepair features the following :

hand-placed repair mortars

spray grade repair mortars

fluid micro-concretes

chemically resistant epoxy mortars

anti-carbonation/anti-chloride protective coatings

chemical and abrasion resistant coatings

For further information on any of the above, please consult yourlocal Fosroc office - as below.