Si-COAT® RTV SiliconeHigh Voltage Insulator Coating

Insu

lato

r fl

ashove

r re

sult

s fr

om

conta

min

atio

n t

hat

set

tles

on t

he

insu

lato

r su

rfac

e. W

hen

com

bin

ed w

ith e

nvi

ronm

enta

l

mois

ture

, le

akag

e cu

rren

t dev

elops,

whic

h c

an lea

d t

o fl

ashove

r.

Old

er m

ethods

to p

reve

nt

flas

hove

r su

ch a

s fr

equen

t w

ater

was

hin

g o

r gre

asin

g a

re t

ime

consu

min

g. In

stea

d, co

at y

our

insu

lato

rs w

ith m

ainte

nan

ce-f

ree

Si-C

OAT

RTV

Sili

cone

Hig

h

Volt

age

Insu

lato

r C

oat

ing (

HV

IC);

the

coat

ing t

hat

has

pro

ven

itse

lf t

o g

ive

the

bes

t ex

tended

-ter

m fl

ashove

r pro

tect

ion,

even

in t

he

most

adve

rse

of

condit

ions.

TH

E L

EA

DIN

G E

DG

E T

EC

HN

OLO

GY

OF S

i-C

OAT

Y

IELD

S U

NSU

RPA

SSED

PO

WER

SY

ST

EM

RELIA

BIL

ITY

AN

D E

CO

NO

MIC

S

Thro

ugh t

hei

r gro

und-b

reak

ing, pat

ente

d a

nd p

aten

t-pen

din

g

tech

nolo

gy,

the

engin

eers

and s

cien

tist

s of

CSL

Sili

cones

Inc.

bri

ng y

ou S

i-C

OAT

HV

IC. W

ith t

his

adva

nce

d p

roduct

, im

med

iate

ben

efits

and e

conom

ics

pre

viousl

y unhea

rd o

f in

the

elec

tric

pow

er indust

ry a

re r

ealiz

ed.

Beyo

nd s

uper

ior

per

form

ance

, Si

-CO

AT w

as d

esig

ned

for

a

gre

atly

exte

nded

ser

vice

lif

e an

d r

educe

d s

yste

m m

ainte

nan

ce

requir

emen

ts. T

he

poly

mer

s use

d a

s th

e bac

kbone

for

Si-C

OAT

HV

IC c

oat

ings

wer

e sp

ecifi

cally

engin

eere

d a

nd c

raft

ed b

y

CSL

’s c

hem

ists

for

serv

ice

in h

igh v

olt

age

and h

igh p

ollu

tion

envi

ronm

ents

. A

ddit

ional

ly, th

e co

atin

g is

alm

ost

enti

rely

unaf

fect

ed b

y U

V lig

ht,

aggre

ssiv

e w

eath

erin

g a

nd a

cid r

ain.

TH

E L

ON

G S

ER

VIC

E L

IFE O

F S

i-C

OAT

HV

IC H

AS B

EEN

C

ON

CLU

SIV

ELY

DEM

ON

ST

RAT

ED

ON

MIL

LIO

NS O

F

INSU

LAT

OR

S I

NSTA

LLED

AC

RO

SS T

HE G

LO

BE S

INC

E 1

987

Pow

er o

uta

ges

due

to p

ollu

ted

insu

lato

rs t

hat

flash

over

are

an

expen

sive

pro

ble

m; pow

er s

upply

relia

bili

ty is

reduce

d, in

dust

ry

suff

ers

pro

duct

ion d

ownti

me,

and t

he

cost

s to

rep

air

flash

over

dam

age

is v

ery

hig

h. M

ain

tain

ing

the

clea

nlin

ess

of insu

lato

rs

thro

ugh r

epea

ted m

ain

tenance

is a

lso

a c

ostl

y ex

erci

se.

Si-C

OA

T R

TV

Sil

ico

ne H

igh

Vo

ltag

e I

nsu

lato

r C

oati

ng

Solv

es

you

r m

ost

dif

ficu

lt i

nsu

lati

on

ch

all

en

ges

Si-C

OA

T R

TV

Sil

ico

ne H

igh

Vo

ltag

e I

nsu

lato

r C

oati

ng

Solv

es

you

r m

ost

dif

ficu

lt i

nsu

lati

on

ch

all

en

ges

Pre

ven

ts L

eakag

e C

urr

en

t Lead

ing

to

Fla

sh

overs

A m

ajor

cause

for

conce

rn f

or

the

pow

er indust

ry is

pollu

tion-r

elat

ed lea

kage

curr

ent.

This

nuis

ance

can

lead

to t

ransm

issi

on inef

fici

enci

es a

nd u

npla

nned

outa

ges

. T

his

cost

s uti

litie

s ar

ound t

he

worl

d h

eavi

ly

– both

finan

cial

ly a

nd in t

erm

s of

cred

ibili

ty. T

he

ram

ifica

tions

are

far

reac

hin

g, ri

ght

dow

n t

o t

he

erosi

on o

f a

countr

y’s

econom

ic a

nd p

olit

ical

hea

lth.

The

engin

eeri

ng b

ehin

d S

i-C

OAT

HV

IC s

tart

s w

ith

a pro

pri

etar

y te

chniq

ue

of

silo

xan

e poly

mer

izat

ion.

Apar

t fr

om

the

poly

mer

, co

ntr

ibuti

ng t

o t

he

hig

h

per

form

ance

of

Si-C

OAT

HV

IC is

the

opti

miz

ed

gra

in s

ize

of

met

al h

ydra

te.

The

13

-mic

ron m

etal

hyd

rate

par

ticl

e em

plo

yed in

Si-C

OAT

HV

IC b

alan

ces

the

nee

d f

or

max

imiz

ed m

etal

hyd

rate

surf

ace

area

wit

h t

he

nee

d f

or

a fr

ee fl

ow

of

esse

nti

al low

mole

cula

r w

eight

silo

xan

e (L

MW

S)

to t

he

coat

ing’s s

urf

ace.

The

dis

cove

ry b

y C

SL o

f

this

opti

mum

gra

in s

ize

is t

he

bas

is f

or

Si-C

OAT

HV

IC’s p

aten

t.

The

tangib

le b

enefi

t re

aliz

ed b

y th

e use

r of

Si-C

OAT

HV

IC is

a nea

r co

mple

te e

limin

atio

n o

f le

akag

e

curr

ent

and incr

ease

d s

yste

m r

elia

bili

ty. T

his

dir

ectl

y

impac

ts t

he

uti

lity’

s fi

nan

ces,

as

more

pow

er is

avai

lable

for

sale

. A

s w

ell, b

ecau

se t

he

repet

itiv

e

pra

ctic

e of

wat

er w

ashin

g o

r gre

asin

g o

f in

sula

tors

is e

limin

ated

, m

ainte

nan

ce e

xpen

ses

are

reduce

d.

Main

ten

an

ce-F

ree, U

nb

eate

n P

erf

orm

an

ce

Si-C

OAT

HV

IC h

as b

een a

ggre

ssiv

ely

test

ed b

y th

e IE

EE, th

e

US

Dep

artm

ent

of

Ener

gy

and o

ther

lea

din

g a

uth

ori

ties

and

labora

tori

es a

round t

he

worl

d. W

ith its

flaw

less

tra

ck r

ecord

,

Si-C

OAT

is

the

most

tru

sted

tec

hnolo

gy

in s

olv

ing insu

lato

r

conta

min

atio

n iss

ues

today

.

Tim

e an

d a

gai

n, Si

-CO

AT h

as s

et t

he

ben

chm

ark

in t

he

fiel

d

of

RT

V insu

lato

r co

atin

gs,

est

ablis

hin

g p

erfo

rman

ce s

tandar

ds

that

can

not

even

be

atta

ined

by

non-c

eram

ic (

com

posi

te)

insu

lato

rs o

r th

e ‘la

test

gen

erat

ion’ a

nd ‘P

LUS’

ver

sions

of

coat

ings

put

out

by

com

pet

itors

.

Inst

alla

tions

in s

ervi

ce f

or

ove

r 2

5 y

ears

conti

nue

thei

r

outs

tandin

g p

erfo

rman

ce, sa

ving t

he

end-u

ser

mai

nte

nan

ce

expen

ses

and r

elia

bili

ty c

once

rns.

Acc

ord

ing t

o o

ne

Euro

pea

n

uti

lity,

the

cost

to a

pply

Si-C

OAT

in t

hei

r sw

itch

yard

s is

rec

ove

red

wit

hin

a y

ear

due

to t

he

savi

ngs

from

elim

inat

ing w

ater

was

hin

g

and t

he

avoid

ance

of

expen

ses

rela

ted t

o o

uta

ges

.

By v

irtu

e of

its

abili

ty t

o n

earl

y el

imin

ate

all le

akag

e cu

rren

t,

Si-C

OAT

has

ach

ieve

d r

emar

kable

res

ult

s in

ver

y har

sh c

ondit

ions

around t

he

worl

d. C

onsu

ltat

ion b

y C

SL S

ilico

nes

Inc.

has

hel

ped

uti

litie

s fr

om

far

corn

ers

all ove

r th

e w

orl

d r

ecove

r lo

sses

in w

ays

no o

ther

insu

lati

ng t

echnolo

gy

can.

An inve

stm

ent

in S

i-C

OAT

HV

IC a

s a

crit

ical

sys

tem

com

ponen

t,

when

work

ed o

ut

in c

ase-

by-

case

det

ail, inva

riab

ly p

rese

nts

an e

xce

pti

onal

ly a

ttra

ctiv

e re

turn

on inve

stm

ent

(RO

I) a

nd

pay

bac

k per

iod.

PR

EV

EN

T A

ND

ELIM

INAT

E T

HE E

XPEN

SE O

F I

NSU

LAT

OR

FLA

SH

OV

ER

S W

ITH

Si-C

OAT

HV

IC

“ALS

TO

M T

ransm

issi

on a

nd

Dis

trib

uti

on h

as

carr

ied o

ut

a n

ew

Transm

issi

on S

yste

m u

nder

Phase

IV P

roje

ct in Q

ata

r duri

ng 1

99

6-9

8.

The

syst

em c

onsi

sts

of 2

20

kV

and

13

2 k

V t

otalli

ng 3

00

km n

etw

ork.

Ove

rhea

d lin

e in

sula

tors

are

SED

IVER

tou

ghen

ed g

lass

and o

ne

thir

d a

re c

oate

d w

ith C

SL S

ilico

nes

Inc.

’s S

i-C

OAT

57

0 R

TV

sili

cone

pro

duct

. This

coa

ting w

as

sele

cted

for

its

long-t

erm

sust

ain

able

hyd

rophob

icit

y.

On t

his

pro

ject

, Si

-CO

AT 5

70

has

now

bee

n w

orki

ng in t

he

coast

al

salt

fog

, hea

vy indust

rial and u

rban

pol

luti

on s

ince

earl

y 1

99

6 w

ithou

t

wash

main

tenance

wor

k.”

ALS

TO

M T

&D

, Pa

ris,

Fra

nce

How

it

work

s

Si-C

OAT

HV

IC p

erfo

rms

by v

irtu

e of

the

low

mol

ecul

ar w

eigh

t si

loxa

ne

(LM

WS)

tha

t na

tura

lly m

igra

tes

from

withi

n th

e bo

dy o

f th

e co

atin

g to

its

surf

ace.

Bec

ause

of

its

low

sur

face

fre

e en

ergy

, the

LM

WS

build

s up

on

the

coat

ing’

s su

rfac

e to

a m

axim

um o

ne m

olec

ule

thic

k la

yer,

also

kno

wn

as t

he ‘m

onol

ayer

’. A

s co

ntam

inan

ts c

ome

to r

est

on t

he m

onol

ayer

of

LMW

S, t

he L

MW

S qu

ickl

y en

caps

ulat

es t

he c

onta

min

ant

part

icle

. Thi

s

phen

omen

on is

aga

in a

res

ult

of t

he L

MW

S’ v

ery

low

sur

face

fre

e en

ergy

.

A s

econd f

eatu

re o

f th

e LM

WS

is it

s ve

ry h

igh d

iele

ctri

c st

rength

.

The

enca

psu

late

d c

onta

min

ant

par

ticl

e is

eff

ecti

vely

phys

ical

ly a

nd

elec

tric

ally

isola

ted f

rom

mois

ture

(i.e

. ra

in, fo

g o

r dew

). T

hus,

the

conti

nuous

pat

h r

equir

ed f

or

leak

age

curr

ent

flow

is b

roke

n.

Th

e C

au

se a

nd

Eff

ect

of

Leakag

e C

urr

en

t

Pollu

tion f

rom

var

ious

sourc

es (

indust

rial

, sa

lt f

og, fe

rtili

zer

dust

,

etc.

) co

nta

min

ates

the

insu

lato

r su

rfac

e.

The

pollu

tion c

om

bin

ed w

ith e

nvi

ronm

enta

l mois

ture

(ra

in, fo

g, dew

,

etc.

) cr

eate

s an

ele

ctri

cally

conduct

ive

film

on t

he

insu

lato

r su

rfac

e.

The

elec

troly

tic

film

of

wat

er o

n t

he

insu

lato

r’s s

urf

ace

pro

mote

s

leak

age

curr

ent.

An insu

lato

r ex

per

ienci

ng lea

kage

curr

ent

is p

rone

to r

educe

d

relia

bili

ty a

nd r

equir

es r

egula

r m

ainte

nan

ce.

Leak

age

curr

ent

also

rep

rese

nts

a loss

of

elec

tric

pow

er, w

hic

h

is a

finan

cial

loss

.

Leak

age

curr

ent

flow

ing a

cross

are

as o

f lo

wer

dia

met

er g

ener

ates

hea

t due

to t

he

hig

her

curr

ent

den

sity

in t

his

are

a. G

reat

er h

eat

pro

mote

s th

e dev

elopm

ent

of

a “d

ry b

and”.

Beca

use

the

dry

ban

d c

reat

es a

dis

rupti

on in t

he

volt

age

pro

file

acro

ss t

he

insu

lato

r, s

mal

l su

rfac

e dis

char

ges

ari

se. T

his

phen

om

enon is

know

n a

s “d

ry b

and a

rcin

g”.

Exce

ssiv

e dry

ban

d a

rcin

g lea

ds

to c

oro

na

dis

char

ge.

Eff

ecti

vely

,

an ionic

gas

eous

pla

sma

is c

reat

ed, w

hic

h s

urr

ounds

the

insu

lato

r.

The

pla

sma

is e

lect

rica

lly c

onduct

ive.

The

dev

elopm

ent

of

such

pla

sma

is t

he

final

ste

p t

o c

atas

trophic

failu

re in t

he

form

of

a fl

ashove

r.

Th

e S

cien

ce o

f Si

-CO

AT

HV

IC

How

Si-C

OAT

HV

IC P

reven

ts L

eakag

e C

urr

en

t

Coat

ing t

he

insu

lato

r w

ith S

i-CO

AT H

VIC

elim

inat

es le

akag

e cu

rren

t.

The

coat

ing (

gre

y) s

ecre

tes

a m

onola

yer

of

LMW

S (g

reen

). L

MW

S

can b

e th

ought

of

as a

n o

il.

LMW

S: v

ery

low

surf

ace

ener

gy

+ v

ery

hig

h d

iele

ctri

c st

rength

.

As

conta

min

atio

n p

arti

cles

(bla

ck) co

me

to r

est

on t

he

surf

ace

of t

he

coat

ing, th

ey c

om

e in

dir

ect

conta

ct w

ith t

he

mic

rosc

opic

LM

WS.

Wit

hin

a f

ew m

inute

s th

e co

nta

min

atio

n p

arti

cles

bec

om

e

mic

roen

capsu

late

d b

y th

e LM

WS.

This

is

poss

ible

due

to t

he

very

low

surf

ace

ener

gy

char

acte

rist

ic

of

the

LMW

S.

Wat

er (blu

e) t

hat

may

colle

ct o

n t

he

surf

ace

is p

hys

ical

ly a

nd

elec

tric

ally

isola

ted f

rom

the

conta

min

atio

n p

arti

cles

. El

ectr

ical

isol

atio

n is

by

virt

ue o

f th

e ve

ry h

igh

die

lect

ric

stre

ngth

of

the

LMW

S.

Furt

her

, th

e w

ater

form

s in

dis

cret

e dro

ple

ts d

ue

to t

he

very

low

surf

ace

ener

gy

of

the

LMW

S. T

his

is

know

n a

s hyd

rophobic

ity.

The

elim

inat

ion o

f w

ater

film

ing f

urt

her

dis

coura

ges

lea

kage

curr

ent.

The

phen

om

enon d

escr

ibed

above

pro

vides

ver

y lo

ng t

erm

pro

tect

ion. The

long s

ervi

ce lif

e of

Si-C

OAT

has

bee

n c

oncl

usi

vely

dem

onst

rate

d o

n m

illio

ns

of

insu

lato

rs inst

alle

d a

cross

the

glo

be

since

1987.

Si-C

OAT

aff

ord

s su

ch long t

erm

rel

iabili

ty d

ue

to its

ric

h a

nd

den

se r

eser

ves

of

LMW

S. F

urt

her

, th

e uniq

ue

and p

aten

ted

form

ula

ensu

res

LMW

S m

igra

tion t

o t

he

coat

ing s

urf

ace

rem

ains

unim

ped

ed.

Un

su

rpassed

Perf

orm

an

ce P

hen

om

en

a

In m

ost

cas

es, Si

-CO

AT a

chie

ves

ult

ra-h

ydro

phobit

y, w

hic

h is

an

extr

eme

conta

ct a

ngle

gre

ater

than

15

0∘ .

The

abundan

ce o

f LM

WS

in S

i-C

OAT

com

bin

ed w

ith c

onta

min

atio

n

par

ticl

es c

reat

es a

hyd

rophobic

mic

rote

xtu

re o

n t

he

surf

ace

of

the

coat

ing. Sc

ience

has

nam

ed t

his

phen

om

enon t

he

“Lotu

s Le

af

Effe

ct” .

As

on a

lotu

s le

af, w

ater

sim

ply

rolls

aw

ay a

nd v

anis

hes

.

Beca

use

Si-C

OAT

HV

IC d

evel

ops

ult

ra-h

ydro

phobic

ity

the

coat

ing

has

a t

enden

cy t

o r

emai

n d

ry b

y quic

kly

shed

din

g o

ff w

ater

.

An insu

lato

r th

at r

emai

ns

dry

is

an insu

lato

r th

at r

emai

ns

at its

hig

hes

t in

sula

ting p

erfo

rman

ce.

Si-C

OAT

HV

IC is

suit

able

for

use

on o

verh

ead t

ransm

issi

on

& d

istr

ibuti

ons

lines

and in s

ubst

atio

ns.

Si-C

OAT

is

also

suit

able

for

use

at

all vo

ltag

e le

vels

incl

udin

g

the

late

st U

HV

pro

ject

s.

TH

E B

EN

EFIT

S o

f Si-C

OAT

HV

IC

Si-C

OAT

elim

inat

es t

he

nee

d f

or

repet

itiv

e m

ainte

nan

ce o

f

conta

min

ated

insu

lato

rs w

ith d

irec

tly

mea

sura

ble

ben

efits

:

In f

act,

in a

lmost

all

case

s, m

ainte

nan

ce w

ashin

g o

f in

sula

tors

coat

ed w

ith S

i-C

OAT

is

dis

coura

ged

as

this

pre

mat

ure

ly d

eple

tes

the

LMW

S.

Trust

the

scie

nce

insi

de

Si-C

OAT

HV

IC t

o s

olv

e yo

ur

most

dif

ficu

lt insu

lati

on c

hal

lenges

.

Th

e S

cien

ce o

f Si

-CO

AT

HV

IC

Th

e O

pti

mu

m F

orm

ula

tion

Silic

ones

inte

nded

for

hig

h v

olt

age

serv

ice

must

conta

in a

crit

ical

ingre

die

nt

nam

ed “

ATH

”. S

om

e lo

w-q

ual

ity

pro

duct

s

excl

ude

the

ATH

and r

epla

ce it

wit

h v

ery

inex

pen

sive

quar

tz

fille

rs. W

hile

quar

tz-fi

lled p

roduct

is

pro

mote

d a

s th

e la

test

gen

erat

ion o

f te

chnolo

gy,

do n

ot

be

foole

d.

ATH

is

esse

nti

al.

The

Si-C

OAT

HV

IC p

aten

t is

bas

ed o

n t

he

dis

cove

ry t

hat

the

opti

mum

siz

e of

ATH

is

13

-mic

rons.

The

purp

ose

of

the

ATH

is

to p

rote

ct t

he

silic

one

in c

ase

surf

ace

dis

char

ges

should

occ

ur

under

adve

rse

condit

ions.

Wit

hout

ATH

, th

e si

licone

may

burn

.

Prote

ctio

n is

pro

vided

by

the

surf

ace

of

the

ATH

par

ticl

e. O

n

a per

unit

mas

s bas

is, th

e su

rfac

e ar

ea o

f AT

H is

incr

ease

d b

y

mak

ing t

he

par

ticl

es s

mal

ler

in s

ize.

How

ever

, sm

all AT

H w

ill c

log t

he

pat

hw

ays

wit

hin

the

coat

ing

thro

ugh w

hic

h t

he

LMW

S m

ust

dif

fuse

in o

rder

to r

each

the

coat

ing s

urf

ace.

LMW

S m

ust

be

allo

wed

to f

reel

y &

rap

idly

dif

fuse

thro

ugh

the

body

of

the

coat

ing in o

rder

to q

uic

kly

mic

roen

capsu

late

conta

min

atio

n a

s it

pollu

tes

the

insu

lato

r su

rfac

e.

Thro

ugh d

eep r

esea

rch &

tes

ting it

was

det

erm

ined

by

the

labora

tori

es o

f C

SL S

ilico

nes

Inc.

that

the

opti

mum

AT

H p

arti

cle

size

is

13

-mic

rons .

Si-C

OAT

HV

IC: T

he

worl

d’s b

est

RT

V S

ilico

ne

HV

IC P

aten

ted

Tech

nolo

gy

An insu

lato

r fr

eshly

coat

ed w

ith S

i-C

OAT

HV

IC d

emonst

rate

s

exce

llent

hyd

rophobic

ity.

The

deg

ree

of

hyd

orp

hobic

ity

is m

easu

red b

y th

e co

nta

ct a

ngle

form

ed b

etw

een a

wat

er d

rople

t an

d t

he

coat

ing s

urf

ace.

In t

he

case

of

fres

h S

i-C

OAT

, =

12

0∘

on a

vera

ge.

Si-C

OA

T R

TV

Sil

ico

ne H

igh

Vo

ltag

e I

nsu

lato

r C

oati

ng

Gen

era

l Pro

du

ct I

nfo

rmati

on

Si-C

OAT

(5

70

) H

VIC

– P

rod

uct

Overv

iew

Si-C

OAT

(5

70

) H

VIC

is

a one-

par

t, r

oom

tem

per

ature

vulc

aniz

ing

(RT

V)

poly

silo

xan

e (s

ilico

ne)

coat

ing. It

s uniq

ue

and p

aten

ted

form

ula

tion p

rovi

des

a h

ighly

hyd

rophobic

surf

ace

for

its

enti

re

life,

whic

h v

irtu

ally

elim

inat

es lea

kage

curr

ent

on h

igh v

olt

age

insu

lato

rs.

Si-C

OAT

(5

70

hs)

HV

IC –

Pro

du

ct O

verv

iew

Si-C

OAT

(5

70

hs)

HV

IC is

much

the

sam

e as

norm

al S

i-C

OAT

(5

70

)

HV

IC. H

ow

ever

, 5

70

hs

is f

orm

ula

ted w

ith r

educe

d q

uan

titi

es

of

solv

ent,

whic

h y

ield

s a

hig

h s

olid

s fo

rmula

tion. T

he

hig

h

solid

s co

nte

nt

of

the

mat

eria

l not

only

red

uce

s th

e ti

me

requir

ed

to b

uild

the

des

ired

film

thic

knes

s, b

ut

it a

lso e

xce

eds

VO

C

requir

emen

ts o

f m

ost

juri

sdic

tions.

The

coat

ing is

opti

miz

ed f

or

hig

h v

olu

me

pro

duct

ion in e

ncl

ose

d

envi

ronm

ents

such

as

insi

de

insu

lato

r m

anufa

cturi

ng s

ites

or

insi

de

mas

s pro

duct

ion insu

lato

r co

atin

g w

ork

shops

The

pat

ente

d f

orm

ula

tion o

f Si

-CO

AT H

VIC

set

s th

e

ben

chm

ark

agai

nst

whic

h a

ll oth

er s

olu

tions

are

mea

sure

d. In

envi

ronm

ents

of

insu

lato

r co

nta

min

atio

n, Si

-CO

AT r

egula

rly

outp

erfo

rms

unco

ated

porc

elai

n o

r gla

ss insu

lato

rs, co

mposi

te

(poly

mer

ic)

insu

lato

rs, an

d a

ll oth

er insu

lato

r co

atin

gs.

Si-C

OAT

HV

IC a

pplie

s ve

ry s

mooth

ly a

nd e

asily

com

par

ed t

o

com

pet

itiv

e co

atin

gs.

This

tra

nsl

ates

into

a m

ater

ial sa

ving a

nd

super

ior

per

form

ance

char

acte

rist

ics.

The

elec

tric

al c

har

acte

rist

ics

of

the

cure

d c

oat

ing a

re

signifi

cantl

y bet

ter

than

those

of

oth

er insu

lato

r co

atin

gs.

No o

ther

coat

ing p

asse

s in

dep

enden

t th

ird p

arty

tes

ting w

ith

the

resu

lts

achie

ved b

y Si

-CO

AT H

VIC

. In

fac

t, o

ther

coat

ing

man

ufa

cture

rs w

ill n

ot

even

subje

ct t

hei

r pro

duct

s to

som

e of

the

test

s per

form

ed o

n S

i-C

OAT

HV

IC.

The

coat

ing is

not

affe

cted

by

UV

lig

ht,

coro

na

dis

char

ge,

solu

ble

and n

on-s

olu

ble

conta

min

ants

, ai

rborn

e ch

emic

als,

salt

, ex

trem

e te

mper

ature

s or

corr

osi

ve e

nvi

ronm

ents

.

Thus,

Si-C

OAT

HV

IC is

suit

able

for

use

in a

lmost

any

serv

ice

envi

ronm

ent.

Unlik

e th

e si

licones

use

d in c

om

posi

te (

poly

mer

ic)

insu

lato

rs,

no h

eat

is r

equir

ed t

o c

ure

Si-C

OAT

HV

IC. T

his

mea

ns

the

free

fluid

(LM

WS)

in t

he

coat

ing is

not

subje

ct t

o f

urt

her

rea

ctio

ns

duri

ng t

he

curi

ng p

roce

ss. T

hus,

more

fre

e fl

uid

is

avai

lable

under

act

ual

fiel

d s

ervi

ce, w

hic

h d

ram

atic

ally

enhan

ces

coat

ing

per

form

ance

.

Take

adva

nta

ge

of

the

ben

efits

of

Si-C

OAT

HV

IC o

n y

our

nex

t

pro

ject

. Yo

u’ll

com

e to

see

that

long-t

erm

, m

ainte

nan

ce-f

ree

pow

er s

upply

rel

iabili

ty is

a re

alit

y.

“We

wer

e in

ser

ious

trou

ble

by

the

reaso

n o

f cl

inke

r and c

emen

t

part

icle

s st

icki

ng o

n t

he

surf

ace

s

of insu

lato

rs u

nti

l m

eeti

ng w

ith

CSL

Sili

cones

. Su

ch t

hat,

eve

ry y

ear

at

least

once

a y

ear,

all

insu

lato

rs

at

the

subst

ati

on w

ere

wash

ed.

Som

etim

es, el

ectr

icit

y w

as

bec

omin

g

cut

off

bec

ause

som

e in

sula

tors

wer

e cr

ack

ed. Le

aka

ge

curr

ent

(flash

over

) w

as

occu

rrin

g d

uri

ng

rain

y days

.

We

have

bee

n w

ithou

t any

main

tenance

outa

ges

, and n

o

main

tenance

wor

ks h

ave

bee

n

requir

ed f

or insu

lato

r cl

eanin

g.

No

leaka

ge

curr

ent

has

evol

ved

aft

er s

ilico

ne

applic

ati

on.

Thanks

, to

CSL

Sili

cones

.

Aft

er a

pplic

ati

on o

f th

e si

licon

e

cove

ring, no

act

ion is

nee

ded

for

clea

nin

g.

Ener

gy

inte

rrupti

ons

sourc

ed b

y

eart

h lea

kage

fault

s in

subst

ati

on

and c

onse

quen

t pro

duct

ion

loss

es w

ill b

e m

inim

ized

wit

h

this

applic

ati

on.”

AD

AN

A C

EMEN

T, A

dana, Tu

rkey

“In r

elati

on t

o th

e applic

ati

on o

f

the

pro

duct

Si-C

OAT

57

0 H

VIC

(H

igh

Vol

tage

Insu

lato

r C

oati

ng),

we

are

applic

ati

on o

f th

is p

roduct

in o

ur

subst

ati

ons.

The

pro

duct

had b

een a

pplie

d

in s

ever

al el

ectr

ical su

bst

ati

ons

of d

istr

ibuti

on in w

hic

h it

was

nec

essa

ry t

o w

ash

or

main

tain

wit

h

a f

requen

cy o

f tw

o ti

mes

per

yea

r

in t

he

mos

t unfa

vora

ble

sit

uati

on.

Aft

er t

he

applic

ati

on o

f Si

-CO

AT 5

70

HV

IC, it

has

not

bee

n n

eces

sary

to

carr

y ou

t any

wash

or

main

tenance

jobs

of t

he

insu

lato

rs s

ince

.”

END

ESA

DIS

TRIB

UC

ION

ELE

CTRIC

A,

Sevi

lle, Sp

ain

© Copyright 2013, CSL Silicones Inc. All rights reserved.“Si-COAT”, “Technology that Sticks”, “570”, “570hs” and the CSL leaf emblem are trademarks or registered trademarks of CSL Silicones Inc. in Canada, the USA and/or other countries. Printed in Canada.

CSL Silicones Inc. 144 Woodlawn Rd. W. Guelph, ON, Canada N1H 1B5 +1 519.836.9044 +1 800.265.2753

www.cslsilicones.com

Si-COAT RTV Silicone High Voltage Insulator Coating

A Proven Success

“Our plant supplies the equivalent amount of electricity that a city the

size of Seattle uses, and it is a complex task to bring a reactor back

on line after an unexpected trip. Our plant is a very important power

supplier in our region, and is directly connected to the US Department

of Energy 500kV grid.

…because my problem was big, the pressure was on me to do something

to prevent future flashovers. The Nuclear Regulatory Commission monitors

our performance, and saw these reactor trips as detrimental challenges to

our reactor shut down systems. A permanent solution was required. The

method of utilizing a coating was selected. The story about how Si-COAT

570 HVIC rose above its competitors during testing is history. We applied

it at the next opportunity and have not had a flashover since 1992.”

ENERGY NORTHWEST, Columbia Nuclear Generating Station, Washington, USA

“Hydro One Networks Inc. installed Si-COAT RTV Silicone High Voltage

Insulator Coating (HVIC) at its Hamilton Beach Transfer Station

(TS) in January 1994 to all bushings. Prior to 1994 the station was

experiencing flashovers many times a year, which required power

washing of the bushings multiple times annually.

Since installation of the Si-COAT HVIC at Hamilton Beach, there has

not been a single flashover on the coated bushings, no re-coating has

been conducted since then. In the interest of precaution by Hydro One,

the coated insulators were power washed once annually only. Feedback

from the manufacturer, however, says that power washing of the

coating is not necessary.

The Si-COAT HVIC product has given flawless performance.”

HYDRO ONE NETWORKS INC., Ontario, Canada

“Just a short note to let you know that the Basslink outage was very

successful. I was particularly impressed with the Si-COAT work that

was completed on the DC insulators. The coating is very impressive,

the product seems to be very effective.”

NATIONAL GRID AUSTRALIA PTY LTD., Melbourne, Australia