ML20003G521

Forwards 801202 Ltr to Util Re Chemtrol Fire Test Procedure CTP-0205 on Chemtrol CT-800/GE RTV 6428 Silicone

ML20003G521
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	12/03/1980
From:	Shute S CHEMTROL CORP.
To:	Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20003G516	List: ML20003G515 ML20003G518 ML20003G521 ML20003G523 ML20003G527
References
NUDOCS 8104290740
Download: ML20003G521 (7)

Text

__

.

[kg.

If(l

' w _.ahemtrol Q O r p O P 8 tio n Area code 713 469 9580 P. O. Box 38556 Houston. Texas 77088 TWX: 910 8816223 O

December 3, 1980 United States Nuclear Regulatory Commission 631 Park Avenue King of Prussia, PA. 19406 Attn: Mr. Boyce Grier Director, Region I Re: Fire Penetration Seals Vermont Yankee Nuclear Power Station Letter to U.S.N.R.C. dated 11/3/80 and 11/14/80.

Dear Mr. Grier:

Please find enclosed a copy of a letter sent by Chemtrol-Corporation to Mr. Edward Sawyer, Fire Protection Coordinator, Yankee Atomic Electric Company. The contents of the letter, I believe, are self explanatory.

Sincerely, CHEMTROL CORPORATION i

D Y _%

Scott Shute Quality Assurance Manager SS/bk Enc.

cc: J. Young

.a

~,s ,

8 r04 290710$

1

W

• k.

l M . hemtrol vdOPpOPc3 tion Area Code 713/459-9630 TWX: 910 8816223 P. O. Box 38556 Houston, Texas 77088 December 2, 1980 Yankee Atomic Electric Company 25 Research Dr. ~

h'estboro, Mass. 01581 Attn: Mr. Edward Sawyer Fire Protection Coordinator Re: Chemtrol Fire Test Procedure CTP-0205 -

CHEMTROL CT-800/GE RTV 6428 Silicone

Dear Mr. Sawyer:

Per the above referenced Chemtrol Fire Test and our telephone conversation on 11/24/80, please find. enclosed a cured sample of the GE RTV 6428 Silicone material that was utilized in the test, as requested.

The density samples acquired from this material prior to the fire test are documented in pounds per cubic foot as follows: a). 77.11 b). 78.80 c). 77.63 I believe it would be safe to assume that the sample of the material enclosed is alsa within this density range.

It may be interesting to note that Chemtrol has requested but has not yet received the manufacturers Certificates of Analysis Test Report from General Electric for this batch number of material (#JM104). However, tnrough further i n .' e s t i g a t i o n of Chemtrol receiving documents recorded at ti.e Vermo n t Yankee Nuclear Power Station, on 12/5/79 Chemtrol received a 1000 pound kit of GE RTV 6428 Silicone cn the job site, batch number JM104. For this order of material General Electric did send Chemtrol a " Report of Test Data", dated 3/6/ 80. (Ple,ase see attached).

In lieu of the .Chemtrol documentation recorded at Vermont Yankee Nuclear Power Station and the fact that the identical General Electric batch number of material was installed et the plant and utilized in the Chemtrol fire test (the material being purchased and shipped from seperate orders, approximately ten months apart) the following two observations can be made:

y_

1). General Electric's " Spec Data" sheet states that the shelf-life of parts A and B of GE RTV 6428 Silicone is 6 months. (Please see attached). However, the shelf-life of this material as stated on the container label is 12 months.

There is no reference on either the specification sheet or the label as to whether this means shelf-life from the date of shipment or from the date the material is containerized.

2). Chemtrol " Density Verification" samples taken on this batch number of material at the time it was installed at Vermont Yankee Power Station shows the recorded average pound per cubic foot density to be 94.13. Chemtrol was only able to achieve an average density of 77.85 pounds per cubic-foot for the same batch number of material utilized in the fire test. From past experience with silicone products manuf actured by other companies, Chemtrol has observed that older, more aged material tends to become more dense. In this case, the opposite of our experiences seems to be evident.

I hope you will find the enclosed information and sample of material to be of some help.

If I can be of any further assistance, please feel free to call.

Sincerely, CHEMTROL CORPORATION D c dD w Scott Shute Quality Assurance Manager SS/bk Enc.

cc: J. Young-Chemtrol Corporation B. Grier-United States Nuclear Regulatory Commission erntrol

~ .uor.corstion

$y - I J D =sT Oy

( [ r.r 0 ' O b w g%

This spec-ca:a sheet conf:.ims 7 g r

to ed:torial s:yte prsserimee t:y m,M

' The Construction speed.estiot's v Inst 4tute. The manuf ach.rer is re.

sm,.:ne , , ,eennaa ace;ra=,.

Q 1. P R O D UCT N A.',1E General E!c::ric Company Two- ",

.I

- Component RTV Silicone Rubber 1 Campound. General E!e::ric Company RTV6433.

O '! Q ,

C 2. M ANUFACTURER ,.:e.

,g. .-

g  ?'~ w.

L General Ele::ric Company Silicere Products Department s...

tHO Water:ord. New York 1213S Q:: -

Telepnene: ( S I S ) 37-33 30 yS e

" y'

3. PRODUCT DESCRIPTION < ..: t Geners! E!rt RW6423 rubber .I compound :s a iou viscesity, two-com- , ,

j ponent. Hquid si:icene rubber com- y pound supplied as A :nd B compo- e s

nents. The A component is bla:k and

n .,r contras: facili-

[

y the B is curi. T..,

cares identificati: a ,( :n adequa:e mix-  ; :~-

ture. An 4Jequ:te mi.s:ure is one which TABLE L TYPICAL PROPERTIES E _.

n-

- .: is :cmcle:cly homoge=cous.

Part A Sase r-clymer as suppl.ied 5 .; c=

=. 7ypical Uses: RTV6425 s.l.as:cne ,

nppearance Black liquid ~:

-  := =

rncher compound has ,cen tested for e

Specific Gravity 1 33

. uses in se:!inc and pctting door and 5~

~

w sti ene:raticns in nuclear power Ccr.sistency Easily scurable ,g Shel! Life 6 months -

i p!:nts w here e!e::ri:31 trays. ::b;es or

] me;hanic21 p:pemg pass through the Part3 Curing Agent as supplied D

'I 5W#*'- Appearance Buff Liquid 1 j, IC8f !

Specific Gravity 1.38

- 3  :. .. to use be::yise comparents A Cens:stency Easily pcurable a and 3 :an be m xed in a 1:1 r:tio Shelf Life 6 montns by w e:,;h: er volum .

n Typic:! care time of 2-4 minutes Laccratcry Cured Freperties- Equal parts A and B as cured 12 hcurs i:t 25 'C med 77'F). Appearance Dark Gray RTV Rubber a Cures in leep sec::ces and ccm. Specific Gravity 1.33 ,

p!etely !osed assemblies with no Cure Time 2-4 minutes meuurabie exotherm Is non.cosic. Mixed Viscesity poise before cure 16 Pcise cen:ams no solvents and vields no Ouremeter Shere A 70 orrosive cure by produe:." Tensile Strengin PSI 400 m Produces a icw der::ir:p re;uire. E!cngstien % 100 Cceff,cient Of Therma!

ment of power c:bies be:ause of

ow thermal v alues :nd :hm.g;; excansicr. in/in/

• F (0-250* F) 1.2 x t c-a depth recuired. Fiammability (UL94) e Has passed 3 hr. ASTM E!19 door 1.5mm (0.070 in) : hick Ve

es: snd huse pray :nd ASTM ES . Fiame scread cer ATSM E34* 13 Smc$e Deveic; men:;er AS'M EE 5.t s

Snac Time 3 ./in.15 Sec.

Pct L fe 1.5 2 :- P .;;es a: 77': ( 2 5 : C',

Te e .- . c :s ai : 2: at re:+

.it* ~:" ...;*1 . :: v' (' '_e f t' *e Fri d .

de'. ."N " rJ[: I,'

• Thi: num: ::1 *.;me s; e:. r2:.ng :s ,ot ; rte.ded to :?.:c: hs:2rds presente 23 N.s.-

.;I.h.,<sY f, [ $. "

th:s or 2.y c::: 22:er. .4 ;rcer 2:t.;2i c e :;-fit;ons,

n:

U *

• . Lirr0ations: SS41f5 P R :M ER with a density of M-86 lbsif t . Use of ment is aaitahic. For Jetaih contact 8

in s N ! s! N S F1. A '.1 M \ B LE COM. R TV6a2s in a confined space does not Genera! Etectric Company. Sibconc

!*t WINI S A% )t D h !. AT A N L) a!!cci eured product density since the Product > Department. W terford Nea oPEN 1 i. 61E L sE tiNLY % 1 PH product does not espand but cures to York.

A f H K A l' E \LN1liTTiON. See the same mmme as the liquid state. Cure Raf er hlaing Part A and B

%41 u primer Ja:. act for tuli de- Incomplete mising of parts A and together will produce a cure within 2 4

(-

s uls on : e nd pre. ath,ns. (See GE B will result in a non. homogeneous mmutes at roo.n te nperature. Contact da:a meet CDS-154SL product. A mised product having a with certain surfaces such as these marbleized appearance as m Figure I con:aining sulfur or other silicone rub-

4. TECHNICAL DATA is not homogeneous or properly mited. ber cure inhibitors may retard the cure A determination of eured product du- rate of RTV6428 compotmd. Use with Ge,eral Electric RTV6428 com- rometer hardness is a more accurate such materi h shou'd be tested prior pound has been tes:ed at Underwriters measurement of homogeneous mising. to instdlation.

I ahoratories. Northbrook. Ilbnois in Properly mixed curea Precuct 4 durom- Adhesion: Adhesion to most sub-accerdance w. it h ASTN! El19 floor and cter hardness will be 68 to 7, on the strates can be improved w.ith the use w all test requirements. Because of the Shore A sea;c. of SS4155 primer.

periormance ci the product eshibited during these tests a 3 hr. ratmg wa$ TABLE 11*

-isen for certain thicknesses of silicon:

6. AVAILABILITY AND COSTS

' bber compound and penetration size ELECTRICAL PROPERTIES Cost and availability data may be ru openings. A copy of ibis report may be Dielectric obtained frc.m GE Silicone Technical ont..ined from General Electric Com- Strength, Volts / Mil Centers listed.

pany. Silicone Products Department. .075" TK 500 Waterford. New York. The ratin;s are D electric 7. GUARANTEE

• aho imed in the Underwriters Labora- Constant at 102 HZ 3.15 ' Each potential user sho. id deter-tory Fire Resistance Directory. 102 HZ 3.09 mine f r i:self. whether thew seg pro-Accep:ance has been given by No- 10' HZ 3.06 #Cd"'C' "'# "C "I"8I "I I*' '5 P3C"'

siear Energ3 Liability - Property In- 1 05 HZ 3.02 lar apphesuon and should run inde-surance Association ( N EL.PI A) to Dissipation pendent tests to determine wLther use RTV6425 as a penetration seal in Factor at 10 HZ RTV642S is sui:able for such applica-nuclear po er plants. A copy of this 10) HZ .'02 013 N "'

weeptanee will be given to a request. 10' HZ .0076 ""C" ' * *' " P"5

• mg utdity or architectural design firm

• 1 05 HZ *0035 tations and descriptions regarding the The product has also been tested to Volume flammah;lity f the pr duct described ni \1 E94 requirements and received Resistivity, ohm-cm 7.2 x 10 are based on standard laboratory tests Clao A Rating of under 25 tlame and as such may not be reliable for #

spread. Complete information can he Equipment: For use in small areas. determining, evaluating. predicting or t obtained on the result of these tests by '

RTV642S rubber compound can be describing the llammability or burning eontacring RTV Construction hlarket. mised by hand. For large voids. auto- characteristics of this product under mg. General Electric Company. Sil;. matic muung and dispensing equip- actual fire conditions, w hether this cone Products Department. Waterford, New York. *_ _

,,,7

. ;(

y. ,.. _ p;.R.gf -

Diit erential pressure, hyc.rostauc

• pressure and radiation tests hase been (- 7 .s. f J/ t ' ,

,,/.;d- j y

}c). (N.

completed. Contact General Electric .

[pq ..'b . g[n 4 '-~~ *'.*/ *... i Silnone Products Department for .3 ,c # '

L. * ,

more information.

>.WM.

.. y.n.+'r.y. ~ . p. . .

}.q.:y'@g

. r m. M.,

. .. .J . , ,'

5. INSTALLATION C 'r '.q ".k . A\ .

Mining and Handling.* %etthng oi k Y .'  :

nuer n nernal durm; storage To as- , . . "' ( . P LM 2,,.% , g ..*i '. = ~ #44%

.7"<a  ; g, p

.o.y;. _ t .-s~,.'py. ~;.g , k p <

..fJ sore a homegeneous compound com- /geg ..

4 ponents A and B should be mned

". ' .[yh.;.,,,,g ,y.'* .$,'p.f ,y.7gN4W',p-jg

-i r mJaidually well. prior to combining '"y*%"f*.-pf/1;,f;-Q'MQ QgN*.h 4.;p.j).'jhp-g:, _ ___

compene,is A and B for maing to- fy,y g.gggg,7 .a .-

~.s _. .

- y__.

gether.

hln equal parts of R !Y642SA and Ma equal parts of RTV 6428A and RTV 64288 uniformy.

RTV642SD. Mixing may be done by hand or by automatic mixing equip-

., cc ' c .- -m ment. The rnis ratio is 1:1 by weight n$ < p rMw W p g,h.,; g $g .j NyYg. r.jdg; A

[Yyl.d.f(p$.

%, . _ h g ,J.,S{rt  :-

fh.M;(]

I

-R i-or solume, since both components A h3 !!/ *. r R

and B hase the same density. If hand f'h g $ *f $:%9 *

/, p'd fg..'% .['.MM*"Mghy/

- d N dy.s,--Q '7: QQy,% d;p QA [d mixing is used. 30-60 seconds of good .

mising are necessary for a uniform J,.ks. ./ -

N y e prmd i.'.msy .c,-.n n..,m.~. , . M. - . m .'g:,

G..M. - ."j,

g. 4y y r,

4 c4 j product of proper density. The mixture

. ie.dd then be transferred immedctely 7 g.y .g.,gg% p- Fa- c , ,. ..gsgr. r:g.;c}e:gg.

~ s 4 u rE n; 4 M $fdh*: 'M-M".I.~.;4 4.

[]h{if;j M- ..h.MI*TS.# b. jd '..*r

~'

to the appt eation sirce comp!cte cure f.fq*[.:-$geg$g/ M.d',,N;;,I  ! d. $}.D.ky h' *~~)e( l occu s .a 2

• minu:es at room tempera-j tore Meshuical mising aad dispens- m'? "- N .', -r-. u f v '.-

h M 'o.A M .h!E. W - WJ mg egnent may be us.f al for iarge Precer mining cf 00.U 3.'erts A anC B im;rocer r*iming of ccTsenerts A and Mume pphca:ien A prcperly raned p .:s u.;,ter.n car, g r. j ; :C:t. B ren.:ts in a r. ara:etrec nenAcmen-ecus pecc.,ct.

p**.due' pelds a cured ui r.cne rubber P00R ORGK

. .prodoci a md at.'ne or in :cmbina.

, non v.d Jther produ:w A cerdingly.

cach potentia! nier should mne his u n md.Wdual dcterminat;ons whether 70 j u IL.v.Aility or buraing character.

. niin of the product are suitable for D the p epme imended by the user. 60 _

O

8. MA!NTENANCE M Un;e the product is cured in place. E 50 -

RTV6CS can be removed by cutting T the product away with a knife. When E repairs are made, additional new prod- R 40 -

uct can be reinstatied oser the old. The prodnet repaired by this method per- 3 formed in a manner similar to the pre- H 30 -

viously applied product under UL test O w ndWons. R 20 -

9. TECHNICAL SERVICES Complete technicalinformation and A liicrature is available from General 10 -

Electric Company. Silicone Products Department. Waterford. New York.

• An> technical advice furnished by the Company or any representative of the i i a i a i a company concerning any use or appli- 0 10 20 30- 40 50 60 e.aion of RTV642S is believed to be TIME - MINUTES relLhle. but the Company makes no w arranty. express or implied, relating to the technical advice provided.

10. FILING SYSTEMS Spe -Data ! II.

• The term -Guarantee" is required per CSI Format. A more appropriate heading is" Limitation."

GE SILICONE TECHNICAL CENTER LOCATIONS C ALIF OR NI A ILLINOIS M AS S ACHUSET TS NEW YCRK SOUTH CAROLIN A EXPCRT C.tv el incustry 91749 Can Stoon 60521 Framin9 ham 01701 Waterford 12188 Greenvdle 29607 C PE R ATIONS 17000 E Gaie Ave. 1301 W 22 St 1661 Wor cestar 513 - 237 3330 150 Esecutive Waterford. N Y.12188 PC Sc= 1270 Sune 1107 Suite 203 Center Dr. SMone Products Cect.

312 - 95S-3450 617 - 879-2935 Syracuse 13202 Swte 24 518 - 237 3330 213 - 965-3301 2P 656-0252 INO!ANA MICHIGAN Rr 178 Han.aros4545 inmatacciis 4C268 Granc Race:s 49508 109 Warren St. TENNESSEE EURCPE 24301 Scstnf anc Dr 6321 LaPasirail 350 28tn Street 3:5 - 478-3511 Merrchis 38137 Genera Eiectne noorr "t03 PO Bos 68543 616 - 241-3401 5100 Pociar Ave Sih::ru -Eurcoe 4 t o - 7 6F- 2330 317 - 298-5316 NORTH CAROLtNA Swte 514 PO Bon 117 so, n; ,, 4go34 W 4MM P 25900 Tetegraon Rd Greensecro 27408 COLORADO Len.c E201 KANSAS Overia,c Parn 313 - 552-3040 6 gree 9 Valley 3

pey4e,neans N

2C' Unuers ty Blvd 66200 ca::as 75240 Mt N N E SCTA Su:te 402 7540 L B J~ Freeway CANADA P O 6:n 2331 S405 Metca!!. 919 - 2924 921 303-3243C29 8102 3 Sarte 504 M'""42Dctis 55420 Su.te 515 Canacian Generat 913 - 967-6314 4 350 t.'etro Crive 214 - 233 5683 Electric Co.. Ltd SJite 509 CHIO 1025 Lansconne FLORIDA Da AO., 4 5429 Goann 359L9 MARYLAND 612 - 854 5140 Houston 77092 Ave . Toronts 75t7 C. rency Dr 3430 So. Disie H way Salt.more 21207 10303 North *est 416 - 4 4-6511 30*,- 655 5304 1 Rumerford P!aza MISSOURI PO Box 2143 p, 7133 Rutnerford Rd.. St Lou s 63132 Kettering Br.

GEORGtA 301- 944-2273 1530 Fairview Ave. 513 - 29S-0311 713 - 688-2593 At,4ma 30342 314 - 997-8441 5 7 75-C Fea:ntree Ga:tte<stur; 20760 Parrra 44134 NEW JERSEY Acc.stce P' ara WASH!NGTON C sr acocy Ac 872 Coa mond Dr SeatUe 98t88

% % 430 301 - 340-4950 C3-reen 08104 Surte 216A .31 Ance,er Pan .

4c4 -.e97 6280 2101 Ferry A<ence 1440 Snc. Read 1500 Panhon 216 - 749-1700 206 - 575-2920

- 5 2-8770 pet 4 NS YLVAN! A a ee 3225 Ctanford C7016 Came7e 15106 11t00 Saver Sprm; 14 Cernmerce Drive - 600 Rd W 412N. Bett Ave-

- 566-4311 414 - 464-4664 201 - 27C-5117 J

l-

~

t P00R GER m

i -

G E N E R A L (h E LE CTRIC

..- SILICONE PRODUCTS DEPART?AENT WATERFORD r NEW YCHK 12188 Tol. 518-237-3330 REPORT OF TEST DATA DATE: 3/6/80 SHIPPED TO:

Mr.-Scott. Chute Chemtrol Corp PO Box 38536 Pouston TX 77060 Customer P.O. #

• 74990/70694 PRODUCT NUMBER BATCH NUMBER =

RTV 6428 JM104 PROPERTY TESTED RESULTS Gel Time 2'35"

'initing oxygen Index 41.8 1

300R D'M E The enatorialident..'i.d above was enade eccording to General E: ectr.c Ccmpany Sifico .* P::du:ts l ~

Depstiment prwedJtes. Thil report has been trar scraled frDm original test repGrtl Cf d ata r *er-rnined on final s.srnples from each listed batch. These test eckorts a o on f ae anJ as s.leb'e f :r irup ction dur.ng noemal business hours for a pe*iod of c,ne year fic,m date of shipe. nt/

6 AO.V E l '

Uk.

mdOuatity Contrc

-ue-*"> c.,.r.m._.r..,.m,h.,_.:,,..,.d..,,.,,n,se..ra,,,....,r:,,.Le.er...r,,,;e.o,t..;,e..