EMERGING TECHNOLOGIESEMERGING TECHNOLOGIES

SILIDRIL SILIDRIL -- Polymeric CoatingPolymeric Coating

&&SHRIJI SHRIJI -- CONDUCTIVE SILICON GELCONDUCTIVE SILICON GEL

By: Surat Prestech Pvt. LimitedBy: Surat Prestech Pvt. Limited

Prepared ByPrepared By

Mr. Nitin Oza, M.E.Mr. Nitin Oza, M.E.&&

Dr. Rafael Mier, PhD.Dr. Rafael Mier, PhD.

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FROM MEXICO TO INDIAFROM MEXICO TO INDIA

Thank You For Allowing Me To Come Thank You For Allowing Me To Come & Speak In Front Of You& Speak In Front Of You

Thank You For Letting Me Come Thank You For Letting Me Come Thank You For Letting Me Come Thank You For Letting Me Come Down & Receiving Me As One Of YouDown & Receiving Me As One Of You

Thanks To YOU & Your Organization Thanks To YOU & Your Organization For The Kind Invitation.For The Kind Invitation.

SIMILARITIES BETWEENSIMILARITIES BETWEENMEXICO & INDIAMEXICO & INDIA SIMILAR CLIMATIC CONDITIONS PLACED IN SAME SIMILAR CLIMATIC CONDITIONS PLACED IN SAME

LATITUDE.LATITUDE.

JUNGLE AND TROPICS IN THE SOUTH AND DESERT IN THE JUNGLE AND TROPICS IN THE SOUTH AND DESERT IN THE NORTH.NORTH.

LARGE COAST AND SEA ON BOTH SIDES.LARGE COAST AND SEA ON BOTH SIDES. LARGE COAST AND SEA ON BOTH SIDES.LARGE COAST AND SEA ON BOTH SIDES.

NARROW IN THE SOUTH AND WIDE IN THE NORTH, WITH NARROW IN THE SOUTH AND WIDE IN THE NORTH, WITH LARGE FRONTIER TO FOREIGN COUNTRIES.LARGE FRONTIER TO FOREIGN COUNTRIES.

SAME FRUITS LIKE PAPAYA, MANGO, COCONUT, CHICO, SAME FRUITS LIKE PAPAYA, MANGO, COCONUT, CHICO, WATERMELON, SWEETMELON, SUGARCANE, PALM TREES.WATERMELON, SWEETMELON, SUGARCANE, PALM TREES.

FOOD IS SPICY AND FOOD IS SPICY AND HOT.HOT.

ECONOMIC DISTRIBUTION IS WITH LOTS FOR A FEW AND ECONOMIC DISTRIBUTION IS WITH LOTS FOR A FEW AND LITTLE FOR MANY.LITTLE FOR MANY.

FROM MEXICO TO INDIAFROM MEXICO TO INDIA

THE ENGINEERS IN THE WORLD BRAKE THE ENGINEERS IN THE WORLD BRAKE

ALL BARRIERS OF DISTANCE AND ALL BARRIERS OF DISTANCE AND

LANGUAGE.LANGUAGE.

WEWE AREARE ALLALL TOGETHERTOGETHER ININ THETHE

ENDEAVOURENDEAVOUR OFOF MAKINGMAKING LIFELIFE BETTER,BETTER,

BYBY TRANSFORMINGTRANSFORMING YOURYOUR && OUROUR IDEASIDEAS

INTOINTO TECHNICALLYTECHNICALLY ADVANCEDADVANCED

PRODUCTSPRODUCTS THATTHAT WILLWILL NOTNOT ONLYONLY GIVEGIVE

SYSTEMSYSTEM RELIABILITYRELIABILITY BUTBUT WILLWILL CREATECREATE

JOBSJOBS && OPPORTUNITIESOPPORTUNITIES..

FROM MEXICO TO INDIAFROM MEXICO TO INDIA

WE PLAY AN IMPORTANT ROLE BY WE PLAY AN IMPORTANT ROLE BY

UNDERSTANDING YOUR TECHNICAL UNDERSTANDING YOUR TECHNICAL

PROBLEM & THAN WITH OUR R & D TEAMPROBLEM & THAN WITH OUR R & D TEAM

CREAT A NEW PRODUCT FOR INDUSTRIES CREAT A NEW PRODUCT FOR INDUSTRIES

TO HAVE A:TO HAVE A:

SYSTEM RELIABILITYSYSTEM RELIABILITY

OUR COMPANY MISSION ISOUR COMPANY MISSION IS

TO TO

DEVELOP WORLD CLASS PRODUCTSDEVELOP WORLD CLASS PRODUCTS

FOR FOR FOR FOR

THE ELECTRICAL INDUSTRYTHE ELECTRICAL INDUSTRY

IN ORDER TO ACHIEVEIN ORDER TO ACHIEVE

SYSTEM RELIABILITYSYSTEM RELIABILITY

ININ THISTHIS PRESENTATIONPRESENTATION WEWE WILLWILL HIGHHIGH LIGHTLIGHT THETHE PROBLEMSPROBLEMSFACEDFACED BYBY THETHE ELECTRICALELECTRICAL INDUSTRIES,INDUSTRIES, SPECIFICALLYSPECIFICALLY WITHWITH THETHEPROTECTIONPROTECTION OFOF HIGHHIGH VOLTAGEVOLTAGE INSULATORSINSULATORS ANDAND SWITCHYARDS,SWITCHYARDS,COVERINGCOVERING::

THETHE LIKELYLIKELY TECHNICALTECHNICAL REASONSREASONS

&& THETHE SOLUTIONSSOLUTIONS TOTO RESOLVERESOLVE YOURYOUR PROBLEMSPROBLEMS

BY BY

OUR PRODUCTS & APPLICATIONSOUR PRODUCTS & APPLICATIONS

Bare Porcelain/Glass SurfacesBare Porcelain/Glass Surfaces

Accumulation of ContaminantsAccumulation of Contaminants

Water FilmingWater FilmingWater FilmingWater Filming

Leakage CurrentsLeakage Currents

DryDry--band Arcing & Flashoverband Arcing & Flashover

CAUSES OF FLASHOVERCAUSES OF FLASHOVER

INDUSTRIAL POLLUTIONINDUSTRIAL POLLUTION

OCEAN SPRAYOCEAN SPRAY

AUTOMOBILEAUTOMOBILE

AIR BORNEAIR BORNE

SALT FOGSALT FOG

COST OF FLASHOVERCOST OF FLASHOVER

Loss of RevenueLoss of Revenue

Safety ImplicationsSafety Implications

Poor Public RelationsPoor Public Relations Poor Public RelationsPoor Public Relations

Disruption of BusinessDisruption of Business

Possible extensive repairsPossible extensive repairs

Inconvenience to: Industry, Tourism & Inconvenience to: Industry, Tourism &

ConsumersConsumers

PROTECTION METHODSPROTECTION METHODS

Water WashingWater Washing

Increased Insulation Level/Creepage Increased Insulation Level/Creepage DistanceDistance

Resistive Glaze ( RG ) InsulationResistive Glaze ( RG ) Insulation Resistive Glaze ( RG ) InsulationResistive Glaze ( RG ) Insulation

Silicone GreasingSilicone Greasing

Silicone Elastomeric CoatingsSilicone Elastomeric Coatings

Silicone Composite InsulatorsSilicone Composite Insulators

WATER WASHINGWATER WASHING

Safety implicationsSafety implications

Repetitive, short term solution, Can be Repetitive, short term solution, Can be done energiseddone energised

Sometimes flashover during energised Sometimes flashover during energised Sometimes flashover during energised Sometimes flashover during energised washingwashing

Requires dedicated equipment and crewsRequires dedicated equipment and crews

When and how often?When and how often?

High lifetime costsHigh lifetime costs

Increased Insulation Level / Increased Insulation Level / Creepage DistanceCreepage Distance

Typically extends time between Typically extends time between washing/cleaningwashing/cleaning

Longer surface path over insulator limits Longer surface path over insulator limits leakage currentleakage current

leakage currentleakage current

During long periods of “No Rain” and high During long periods of “No Rain” and high humidity, flashovers may still occurhumidity, flashovers may still occur

May require replacement of existing May require replacement of existing insulation OR a Insulatorinsulation OR a Insulator

Resistive Glaze ( RG ) Resistive Glaze ( RG ) InsulatorInsulator

Retards formation of water films by heat Retards formation of water films by heat produced from constant current flow produced from constant current flow through a resistive layer on the insulator through a resistive layer on the insulator surfacesurfacesurfacesurface

Long term stability of the resistive glaze is Long term stability of the resistive glaze is questionable questionable –– e.g. removed by sand e.g. removed by sand storm abrasionstorm abrasion

Constant power lossesConstant power losses

Silicone GreasingSilicone Greasing

GoodGood performanceperformance

EncapsulatesEncapsulates pollutantspollutants

WasteWaste disposaldisposal considerationsconsiderationsWasteWaste disposaldisposal considerationsconsiderations

NeedsNeeds replacingreplacing whenwhen saturatedsaturated

WaterWater repellent,repellent, arcarc tracktrack resistantresistant surfacesurface

Lower lifetime costs than water washingLower lifetime costs than water washing

Silicone Elastomeric Silicone Elastomeric CoatingsCoatings

ArcArc tracktrack resistanceresistance additivesadditives..MostMost competitivecompetitive overover longlong termterm..LongerLonger inin--serviceservice lifelife timetime thanthan greasesgreases..SpecificallySpecifically formulatedformulated forfor highhigh voltagevoltageinsulatorsinsulators..insulatorsinsulators..

ControlledControlled applicationapplication forfor optimumoptimumperformanceperformance andand totaltotal lifelife cyclecycle costcost..

SuppressesSuppresses developmentdevelopment ofof leakageleakagecurrentscurrents duedue toto aa dynamicdynamic andand interactiveinteractivesurfacesurface whichwhich retardsretards waterwater filmfilm formationformationandand contaminationcontamination solubilitysolubility..

Features of Features of Silicone Elastomeric CoatingsSilicone Elastomeric Coatings

Excellent Weathering ResistanceExcellent Weathering Resistance

Silicone material have a backbone Silicone material have a backbone structure composed of Sistructure composed of Si--O bondsO bonds

Organic rubber have a backbone Organic rubber have a backbone Organic rubber have a backbone Organic rubber have a backbone structure composed of Cstructure composed of C--C bondsC bonds, which , which are less stableare less stable

These two bonds have significantly These two bonds have significantly

different bond energiesdifferent bond energies

Bond Energy ComparisonsBond Energy Comparisons

BOND BOND ENERGY (kj/m)

Si - O 445

C - C 348

Sunlight at 300nm 398Sunlight at 300nm Wavewlength

398

Si – O, bond energy is higher than the

energy of the sunlight giving a greater

degree of UV stability than the C-C bond

which is the backbone of EPDM Polymers.

HYDROPHOBICITYHYDROPHOBICITY

SURFACESURFACE ββββ ββββ Aged

Porcelain / Glass 0o 0o

Organic 105 o 0o

Silicone 105 o 105 o

ARC ARC –– RESISTANT FILLERRESISTANT FILLER

Usually Hydrated Alumina (ATH)Usually Hydrated Alumina (ATH)

Varies in particle size & Surface Varies in particle size & Surface Treatment Treatment Treatment Treatment

Smallest possible particle size achieves Smallest possible particle size achieves

even and stable dispersion in the polymer even and stable dispersion in the polymer

for peak performance and shelf lifefor peak performance and shelf life

SOLVENTSOLVENT

Disperses the silicone polymer to reduce Disperses the silicone polymer to reduce viscosity for easier applicationviscosity for easier application

Optimises the solids contentOptimises the solids content

Solvent Should Have:Solvent Should Have:Solvent Should Have:Solvent Should Have:

-- PurityPurity

-- SolubilitySolubility

-- Evaporation RateEvaporation Rate

-- Suitable for live line applicationsSuitable for live line applications

-- Safety, Regulatory, EnvironmentalSafety, Regulatory, Environmental

CURE SYSTEMCURE SYSTEM

CuringCuring occursoccurs byby meansmeans ofof atmosphericatmospheric

humidityhumidity..

CrosslinksCrosslinks thethe polymerpolymer moleculesmolecules toto formformCrosslinksCrosslinks thethe polymerpolymer moleculesmolecules toto formform

thethe rubberrubber coatingcoating..

CuringCuring startsstarts whenwhen thethe solventsolvent evaporatesevaporates

andand thethe productproduct entersenters inin contactcontact withwith

thethe airair..

SILIDRIELSILIDRIEL HVIC PROTECTIONHVIC PROTECTION

Hydrophobic surface prevents water Hydrophobic surface prevents water filmingfilming

Resistance is kept very high avoiding Resistance is kept very high avoiding leakage currents.leakage currents.

Contamination is trapped and removed by Contamination is trapped and removed by Contamination is trapped and removed by Contamination is trapped and removed by falling droplets.falling droplets.

When arcing occurs, When arcing occurs, ATH (Hydrated ATH (Hydrated Alumina) releases H2O,Alumina) releases H2O, stopping the arc stopping the arc and reducing surface erosion.and reducing surface erosion.

Maintains these features over the long life Maintains these features over the long life of the installation.of the installation.

ONON--SITE APPLICATIONSITE APPLICATION

•• By paintbrush By paintbrush –– ok for small jobsok for small jobs

Air Spray equipment Air Spray equipment

SILIDRIELSILIDRIELLIFETIME COST ANALYSISLIFETIME COST ANALYSIS

SILIDRIELSILIDRIEL inin manymany casescases isis aa oneone timetimelonglong termterm (( 1010 ToTo 1212 years)years) applicationapplication..

WithWith SILIDRIELSILIDRIEL HVICHVIC installationsinstallations therethere isisNONO routineroutine maintenancemaintenance justjust inspectioninspection atatNONO routineroutine maintenancemaintenance justjust inspectioninspection atatnormalnormal substationsubstation inspectioninspection timestimes..

TheThe longlong termterm reliabilityreliability andand eithereither LowLow ororNONO maintenancemaintenance makesmakes ––

“SILIDRIEL”“SILIDRIEL”Low Cost RELIABLE SOLUTION.Low Cost RELIABLE SOLUTION.

LIFETIME LIFETIME COST COMPARISON EXERCISECOST COMPARISON EXERCISE

Assuming coating of 1 x 66kV insulatorAssuming coating of 1 x 66kV insulator

Material and labour costs to water wash one Material and labour costs to water wash one

time being RS.675/time being RS.675/-- and repeated every 3 monthsand repeated every 3 months

Material and labour costs to grease (silicone) one Material and labour costs to grease (silicone) one Material and labour costs to grease (silicone) one Material and labour costs to grease (silicone) one time being RS.3000/time being RS.3000/-- repeated every 2 yearsrepeated every 2 years

Material and labour costs to coat with Material and labour costs to coat with

SILIDRIELSILIDRIEL,, RS.6500/RS.6500/--, , with anticipated life with anticipated life of 10 To 12 Yearsof 10 To 12 YearsInIn--use service conditions vary widely; service life use service conditions vary widely; service life is dependant on service conditionsis dependant on service conditions

Cost of Different Protection Methods

5006007008009001000

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Water Washing

SILIDRIELSILIDRIEL

What is it and how does it work?What is it and how does it work?

Where to apply?Where to apply?Where to apply?Where to apply?

How to apply?How to apply?

SILIDRIELSILIDRIEL

AirAir humidityhumidity servesserves asas aa vulcanizingvulcanizing agentagent..

ItIt isis aa oneone partpart coating,coating, inin liquidliquid formform likelike aapaintpaint..

ItIt isis sprayedsprayed oror brushedbrushed oror thethe insulatorinsulator dippeddipped..PreferablyPreferably sprayedsprayed..

TheThe endend resultresult isis aa SiliconeSilicone ElastomericElastomericThinThin CoatingCoating thatthat PreventsPrevents InsulatorInsulatorFailureFailure..

SILIDRIELSILIDRIEL

•• Powder, salt and other contaminants Powder, salt and other contaminants deposit on the insulator.deposit on the insulator.

•• Humidity due to condensation, fog or rain Humidity due to condensation, fog or rain

How does it work?

•• Humidity due to condensation, fog or rain Humidity due to condensation, fog or rain wets the surface.wets the surface.

•• Contaminants dissolve and leakage Contaminants dissolve and leakage currents occur and create dry bands and currents occur and create dry bands and arcing.arcing.

•• AA SilidrielSilidriel coated insulator stays dry since coated insulator stays dry since the surface tension stops water from the surface tension stops water from spreading. Just like wax in a polished car.spreading. Just like wax in a polished car.

•• Droplets wash the contaminant.Droplets wash the contaminant.

SILIDRIELSILIDRIEL

How does it work?

•• Droplets wash the contaminant.Droplets wash the contaminant.

•• Once the insulator gets wet, it does not Once the insulator gets wet, it does not fail since it has cleaned itself.fail since it has cleaned itself.

•• When water stops, the insulator recovers When water stops, the insulator recovers water repellencywater repellency

SILIDRIELSILIDRIELPicture for AnalysisPicture for Analysis

PropertiesProperties

No contaminant adhesion.No contaminant adhesion.

Hydrophobic. Repels water.Hydrophobic. Repels water.

Resistant to acids and alkalines.Resistant to acids and alkalines.

No carbon path formation. No tracking.No carbon path formation. No tracking.No carbon path formation. No tracking.No carbon path formation. No tracking.

Strong adhesion to Glass and Porcelain.Strong adhesion to Glass and Porcelain.

Does not deteriorate with Does not deteriorate with Solar Radiation.Solar Radiation.

In extreme case it may erode In extreme case it may erode BUTBUT without without tracking.tracking.

Its Its ORANGEORANGE color, allows quick inspection color, allows quick inspection at distance.at distance.

Application of Application of SilidrielSilidriel

UseUse anan AirAir SpraySpray..

ForFor airair sprayspray useuse aa portableportable compressorcompressor

AirAir mustmust bebe drieddried afterafter compressioncompression

AA pressurepressure bucketbucket containscontains thethe SilidrielSilidriel

TwoTwo hoses,hoses, OneOne bringsbrings SilidrielSilidriel && SecondSecondbringsbrings thethe airair toto sprayspray gungun..

SilidrielSilidriel comescomes readyready forfor applicationapplication

NO INFLAMABLE SOLVENTS ADDEDNO INFLAMABLE SOLVENTS ADDED

SPECIFICATIONSSPECIFICATIONS

NonNon toxictoxic

NonNon explosiveexplosive

LowLow FlammabilityFlammability

HarmlessHarmless toto environmentenvironment

CanCan bebe reappliedreapplied overover thethe previousprevious coatingcoating

RightRight thicknessthickness isis achievedachieved whenwhen colorcolor lookslooks uniformuniform

No Primer OR Solvent RequiredNo Primer OR Solvent Required

READY TO USE PACKREADY TO USE PACK

Color :Color : ORANGEORANGE

SILIDRIELSILIDRIEL

SPECIFICATION VALUE STANDARD

Volume Resistivity 2.1713 Ω-cm ASTM-D-257

Dielectric Strength 24.5 kV/mm ASTM-D-149

Properties

Dielectric Strength 24.5 kV/mm ASTM-D-149

Dielectric Constant 100 Hz 2.59 ASTM-D-150

Dielectric Constant 100 kHz 2.66 ASTM-D-150

Disipation Factor 100 Hz ≤ 1X10-4 ASTM-D-150

Disipation Factor 100 kHz ≤ 1X10-4 ASTM-D-150

Inclined Plane 552 Seg at 5 kV ASTM-D-2303-97

Saline Fog Chamber for 120min at salinity of 80 kg/m3 No flashover IEC-60507

CleaningCleaning

•• InsulatorsInsulators needsneeds toto bebe CleanedCleaned withwith ClothClothandand PetrolPetrol ONON OFFOFF LINELINE..

•••• TheThe cleaningcleaning processprocess isis veryvery importantimportant forforadherenceadherence andand durabilitydurability..

SILIDRIELSILIDRIEL

The ideal solution to Effectively Counteract The ideal solution to Effectively Counteract Pollution on insulators in highly Pollution on insulators in highly contaminated zone is to:contaminated zone is to:

ApplyApply SilidrielSilidrielApplyApply SilidrielSilidriel

Forget about failure problems for some Forget about failure problems for some years.years.

OnOn veryvery criticalcritical locationslocations washwash asas neededneeded..

ReRe ApplyApply onon erodederoded sectionssections onlyonly inin 44 oror 55yearsyears..

Heavily bonded contaminant in Heavily bonded contaminant in Cement Plant in MexicoCement Plant in Mexico

SilidrielSilidriel can take 1,000 psi can take 1,000 psi washing without peeling offwashing without peeling off

SILIDRIELSILIDRIEL can be pressure can be pressure washedwashed

LastLast figurefigure showsshows 11,,000000 psipsi withwith “charge”“charge”LastLast figurefigure showsshows 11,,000000 psipsi withwith “charge”“charge”overover SilidrielSilidriel coatingcoating.. GoodGood cleaningcleaning butbutnono splittingsplitting

TO SUM UPTO SUM UP SILIDRIEL SILIDRIEL OFFERSOFFERS•• NoNo AdditionAddition ofof SOLVENT,likeSOLVENT,like Naphtha+++,Naphtha+++,

–– NoNo SolventSolvent

–– NoNo ExtraExtra CostCost forfor SolventSolvent

–– ReadyReady toto USE,USE, EcoEco FriendlyFriendly Product,Product,

•• SpeciallySpecially FormulatedFormulated –– ORANGEORANGE COLORCOLOR ––

•• WhileWhile applyingapplying SILIDRIELSILIDRIEL onon insulatorinsulator ofof RedRed //BrownBrown color,color, thethe CoatingCoating ThicknessThickness shouldshould bebeBrownBrown color,color, thethe CoatingCoating ThicknessThickness shouldshould bebesuchsuch thatthat ONLYONLY ORANGEORANGE COLORCOLOR isis uniformlyuniformlyvisiblevisible..

•• ORANGEORANGE COLORCOLOR willwill bebe helpfulhelpful inin accessingaccessing fromfromaa distancedistance duringduring subsequentsubsequent inspectioninspection..

•• ConsideringConsidering allall thethe ParametersParameters:: SILIDRIELSILIDRIEL ProvesProvestoto bebe thethe::

BEST TECHNO ECONOMICAL PRODUCTBEST TECHNO ECONOMICAL PRODUCT

F.A.Q.F.A.Q.

Why the Coating gets PILL OFFWhy the Coating gets PILL OFFBy using some ALTERNATE productsBy using some ALTERNATE products

RTV coating RTV coating -- Grey / Off White ColorGrey / Off White Color

•• It is Normally observed that the Coating gets It is Normally observed that the Coating gets •• It is Normally observed that the Coating gets It is Normally observed that the Coating gets PILL OFF!!!PILL OFF!!!

•• This Worsen the case This Worsen the case –– As by this it decreases As by this it decreases the Creepage Path the Creepage Path –– Live & earth comes nearer.Live & earth comes nearer.

•• Resulting Resulting –– More Chances of FLASH OVER.More Chances of FLASH OVER.

PEELINGPEELING of Coatingof Coating

•• The Grey / Off White Coating from Insulators The Grey / Off White Coating from Insulators will come out in pieces.will come out in pieces.

•• On some Insulator On some Insulator –– one may feel it is there one may feel it is there BUT it has turned to SLEEVE.BUT it has turned to SLEEVE.

•• These creats theThese creats the WORST WORST situation.situation.

•• As by this one has decreased the Creepage Path As by this one has decreased the Creepage Path •• As by this one has decreased the Creepage Path As by this one has decreased the Creepage Path –– Live & earth came nearer.Live & earth came nearer.

•• Resulting Resulting –– More ChancesMore Chances ofof FLASH OVER.FLASH OVER.

LikelyLikely REASONSREASONS for PEELING of Coatingfor PEELING of Coating

The Product used:The Product used: (GREY / OFF WHITE)(GREY / OFF WHITE)

•• Require PrimerRequire Primer –– Might NOT have used, may be to Might NOT have used, may be to bring down cost for comparison with Silidriel.bring down cost for comparison with Silidriel.

•• Requires NaphthaRequires Naphtha as a Solvent & as your plant is Lignite as a Solvent & as your plant is Lignite Based, Thinner / Petrol must have been used. (As Based, Thinner / Petrol must have been used. (As Naphtha, available in Market is Costlier) which changes Naphtha, available in Market is Costlier) which changes the Chemical / Adhesion property.the Chemical / Adhesion property.

•• Layers shows different thickness Layers shows different thickness –– It sounds , to finish It sounds , to finish thethe Job Faster, more thinner is used.Job Faster, more thinner is used.

•• While Coating While Coating –– Absolute DRY Climatic condition require.Absolute DRY Climatic condition require.

As product is design for U.S.A. / EuropeAs product is design for U.S.A. / Europe & & because of Cold Climate Condition the because of Cold Climate Condition the Atmosphere remains COLD Atmosphere remains COLD BUTBUT DRY. DRY.

Likely Likely REASONS REASONS for PEELING of Coatingfor PEELING of Coating

•• Such situation Such situation –– ofof Getting DRY Climatic Getting DRY Climatic Condition is NOT possibleCondition is NOT possible in Tropical Climate in Tropical Climate Like ours & Specially for the plant based in Like ours & Specially for the plant based in Coastal area. Coastal area.

•• In case In case –– if one wants to wash the Insulator, All if one wants to wash the Insulator, All the Coating will come out as because of Damp the Coating will come out as because of Damp the Coating will come out as because of Damp the Coating will come out as because of Damp Climatic Condition, we could see that there isClimatic Condition, we could see that there isNO ADHESIONNO ADHESION of Coating with Insulator.of Coating with Insulator.

&& Friends,Friends, thisthis isis NOTNOT thethe ENDEND ofof ourourpresentation,presentation, WeWe looklook forwardforward forfor youryourINPUTSINPUTS soso thatthat wewe cancan improveimprove // addadd thetheTechnicalTechnical ParametersParameters andand cancan startstart aa newnewstagestage ofof serviceservice andand cancan offeroffer thethe productsproductstoto youyou forfor achievingachieving thethe

SYSTEM RELIABILITYSYSTEM RELIABILITY