Document 91kq94owq3E949Ryo4YaDDXjD

U Km Stanpf -- CATCO SFSOFJCmOB ur'\ 6 w if U3Z f 7 July 23, 1959 In view of a recent caapetitive audit on our sprayed fibers, tha serious coverage coplaiat by tha S* F.Byrnes Company, and a series of SOJHD-SHI2LD ccmplaiste, we ara reviewing tha formlation aad spaoifloationa and ara pre- paring to oaks tha following changes* Should you taka exception to any change, please advise tha writer. Tha cohesive strength of CAPCO HEAT-SHISLE at tha lower applied densities ara the somewhat weak, and present 2 to about Lth%a* raTfohrias we intend to increase tha cement content difference does not appear to detectably Iron change tha coverage* Tha bulk density will be tightened from 6*5 - 3*5 to 6*3 - 8*3 lbs* par cu. ft. Sieve analysis lioits are also to be plaeed on the product* J?CAFCO SOUND-SHLdLD - Complaints with this product ware on lack of harden ing, non-unifora shade, and our observations of large pallets* Tha lack of hardness is usually a function of water used, density and drying rata* Sene, laboratory results, however. Indicate that longer nixing, or laboratory results An a harder nass* This may be due to better distribution of binders* Cur present product is larger In pallet size and consequently lighter In density. Ye intend to place a sieve analysis limit other than that sat by U*L* which will require a scalier sized product* The bulk density, which is notr 11 to 13, is to go to 2~'/* /*, r lbs* per cu* ft* B1A2S-3HTRID - This product currently calls for a bulk density of 6 to 10 lbs* per cu* ft* XV la intended to limit this density to 6 to 9*5 lb* per cu* ft* and to also place a sieve analysis limit on it* Raw Materials* \ Mineral Wool * The wool specification for the old Bill called for a naxfaaai of 9 retained on a 3/4 lach bin varies between 6 and 50!f acreep* retained Tonhethweoo3l /pkreinscehntslycregeonin*g into This the storage wool is then tr--whit decreased in siss as it goes through the angers* We plan to see "bat practical specification limits can be placed on this ram material* Serly la 1958, Buberoid 5Z> asbestos was placed on the approved list along JX 5D Special since the two had equal characteristics both by research ***ts, and *y a sieve analysis at U*S?astiag Sines there were nCt llmlte, Mity control teats were not made on the material and it la not known to J*t extent the quality changed during use* We are planning on a sieve analysis, density teat and a wet bulking teat to be carried out* ^ tbe past CAFCO Materials returned were eraalned only for physical character- **tlct which did not give a complete picture* We intend to set up a procedure chemical analysis which should show a acre cablets picture, but will also ^Mre extra laboratory testing shipment such as a sensitive h. Ytrh*1-- r\ etc*