Document zQ8d65jk8njER1MYZdXvza6wB

For Attention Copy te The RUBEROID Co. USZAXCH 1ABORA.TOKY SOUTH BOUND BROOK, N. J. v*' CEXDCS5T3R Date Talbert uhtoh cABsrng capig ./ JO, 1557 *r. Balters' latter of *y 22ct i Tea bar* a eqpy ef Ton Belters' latter that pots faith eertain questions regrading the expanded are of oar Insolation. , Z preesueethe reasons ve cannot sake a 6" thick blade aret . ".T:.." (a) Be don't hare this also pan or Killlag fbdllfcias. (b) Ttagr taka extra anted arra tiaa vfaleh ve esmot spare. ; 'V>'' ` *' I'-.' Y . (o) She drying tJLaa voold be vary 2sng. "V 7-. ,'!,> f-*f- / * V'.. v. >. (d) Tee J* blocks, oaneoted together, hare bees food unacceptable* '~-j. FLease let ua Jmov jest dgr -ee eanaoi aaka a < thick block sad What ^ it voold taka te do it* .,,? j.: V _,v.V la the aecead parogreph of Too'a letter, X think ha is confusing the ' vord strong* vlth the vord "soft** Xn order to sgtiaQr the require- sots of being able to Jure pipe eorexing onnforn to a traced line, the Inner here of the oorerins veuld hare to hare eery high . "`-r tztioa chazmcteristice. Xt voold base to be soft or apoogr to alio* the tracer Haas to died rather than act as a toeal point over vhich' V-s ' the covering vould crack* Perhaps pea conld suggest an Inner l^er - . cospoeltlan that eotild aland thla trestaact and fit In vith oer:>v operation* Z certainly don't bare any ideas is this oonnoottca,': It vcnld appear that It eeold require practically all fiber and -Ipery little hinder* The binder, la thla aaae, voold hare te be better than a regular calcine tqrdrceiXlcacte* . . '> Z an asre that ve eeold add a suitable dps to ear 1800* Celeillto to distinguish it from standard naterial. Bator dlspersahle blacks--ouch as Columbia. Carbon's Iqnahlak 3*--voold prodace a . distinctly grey naterial and voold act be affected by a htgb-preei tea cure. Other eclcr* eeold be obtained vlth vcrlocs dree* It is . wtf ispreesian that TqTiiii Bam 111c Aready uses carbon black la their ' f ' -r*. Tbemcbeetoe and X beliere encnc alas uaea a red tint* Z Salas Depsrtnent voold prefer If Br. Balters vill express tdaealf n this point, ve selection of the proper color herv la the laberetcay* the MICH01052