Document QjkgjpkL8mZbL7RKrXbL4V9E
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oo. P,T,B,Hardy' ^i?` 2), B, Carnaron-Bruasela
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I tumrifht Contrala lUiUt
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Vta(hlU lo&daa&on
l Hartfordahira,
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HaOrrO, 1966 KCD*^.**
Pair Xr, Volkar,
furthar (o nr di*ou**ltt> on the lfth April, 2 sot out halo* tur rtoonaeadattona far rtduolnf (ha Aroolor 124s (oaiolty
1 h*tarda and tnforakdan an KB 4f> (tod MOB Jdl* Taohnioal bullatina
on (ha last nantd yroduota ara tnoltatft,
f; t, ! fba Aroolor oonoantration in (ho air oonditlon too* should
ba aubrtantUllgr rtduotd V onolotlny (ha araaa vhara (ha thawoatat alataanta ara lafi (a drip far t4 boura and doolinf (ha axhaual |u %a afesoaphara Mali* (ha potltlvt praaaura In (ha roon. Vha quaation af vhathar (ha Modlriaatiaaa art auffiolaat (0 tartly oontrol (ha
Aroolor oonoantraiion it all llnaa durint (ha jraar till feavt (0 ha lafi until (ha hodlfio*(lth Maya haah nada Ad (ba ayataa (aatad.
Apart An (ha (H a Wpiaolht af (ha *afritr(loa ayatao daring oold apalla, (ha huahar af (htxnott*( Alahtata hainf draiotd in (ha
roan at any fiaan (iAa nuat Mara a aonaldarabit affao( an (ha oeootatrtUon af Arooltf vapour In (ha roon and va raooawand (h(
. (bay ahouldX kapl (ofpiniwn*
. : v
: VMbrtgard (0 hu&aa promotion yhan handling Aroalar
1(48, va (now #f no hand Ofta&a (paVla of provldii* odaqatta
; protaolion ayalnat oontlnuOua oontiot vi(h Aroolor, (omar, va
; wdarataod (hat you (ill lat na hara dataila af a nW ynWiira
araan vUah ^pafrt/(o (a aultabla far giving proWoil&froo t/i
hour# fron noli# , Va rtoonatnd (ha u*t af *oaia<w<Wr p car
intasnittant aontaoV'
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OSW 018294
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STLCOPCB4004838
2-
The only gloves that will be really suitable for a long life with Aroolor are those made of Viton, Bilioone Bobber, JTFi, or Nylon. All other notariala will awell appreciably In contact with Aroolor. However! gloves node of material resistant to Aroolor are very expensive and nany companies prefer to use gloves node of less resistant aaterlal and ohange them more frequently* thin polypropylene gloves have been found to be very suitable.
On Page 1 of the teohnioal bulletin on HB 40 you will find information on the general phyeloal properties of the produot. The vapour proseurt and ooeffloiant of thermal expansion are very similar to Aroolor 1246 but the specific gravity la nuoh lower. V# know that HB 40 is being used as a thermostat actuating fluid in the States but work on evaluating this fluid for this particular type of application hae bean oarrltd out privately by the ooepani.ee involved. Although we see no reason why HB 40 should not be used for this type of application, we are not In e position to reoosnend ite use over Aroolor 1240, Ve will neturally give you any data that will assist you in evaluating the fluid but regret that the aajorlty of information on the produot refers to its uso as a plastioiaer and not as a funotiona) fluid.
The priot of HB 40 in 460 lb drums is 2/4d per lb plun 10a t.c.i.
You will note from the data on MCS J6l that the boiling point is above 600P and ve see no reason why MCS }6l should not be used at temperatures up to this figure. MCS 36I is a polyphenyl ether type material and ia available at a price of H.8,/$20 per gallon f.o.b. 8t.Louis. The best produot for this application would be OS-124 but einoe this ie available at ^165 per gallon f.o.b. St.Louia. we feel that for your particular requirmnonto MCb jCl will provide a better financial anever. The data sheet does not oontain a Value for a oOofflolont of thermal expansion but this oan bo oalculsted by using the reciprocal ef density versus temporature.
2 look forward to hearing from you when you have had an opportunity to study the oontente of this letter and the enolosuree.
Yours sincerely
T. ^anOH-MBSHTB
OSM 018295
STLCOPCB4004839