Document 9J5mxyBq1megj1xLVq40QY0n7

GRACE Zonol'te Construction Products Division W *. Groe* & Co. 62 Whittkmork Avknut 02099^}Q2 Comor,ao. Moil. 02160 1617) 876-1600 April 18, 1979 Mr. James Frazer Maine Medical Center 22 Braahall Screec Portland, M 04102 PLAINTIFF'S i EXHIBIT |WRG-1661 Dear Mr. Frazer: Confirming our conversation of April 18th, ZONOLITE MONOKOTE Cementitious Fireproofing supplied by this Company prior to mld1973 contained approximately 12Z by weight of asbestos fibers. These were added to the product during manufacture. Sales of fireproofing products containing asbestos were discontinued during 1973. As promised, I have enclosed information on commercially-available sealers advertised by their respective companies as being effective in sealing the surface of asbestos-containing materials. We have no information on the effectiveness of these products. Please do not hesitate to contact me if you have any questions con cerning this situation. Verytruly yours, RAM:ds Enclosures Robert A. Merther Manager Fire Protection Products ******* <k*kkto*kkI--*- Uf, vjj hk HvleM H . kawd o* k*. Wv k.a '.kk k-d -- CwW-w.k k*dMtw, Kmhin,kk nvun '(-- n-V <"l k* l*tkk,fck, V'-- -- V# kv* CO-k-.Q-i ol ,,* kkyfc kkk'v * k 90MI Wkk* kd b, Wt V.V kMBMV A* 'k^o-vk--r Ikf **. k* iuh `V J l kukk^lMBi kr hdfflikM U* kk *k kk*k n k >kkkkf"kkk> Ik k-v H wkyk kk.*k tkW.kgk k* kk*k-- k, cokv-^k. POTtNT 1 AJ_ HA/LARD index for sprayed asbestos coatings Asbestos dust from sprayed asbestos coating is a function of several factors. These factors are considered separatelyf numerically rated, and a combined index generated to describe ___ the potential hazard. 02090^3 A. Condition--After some time has elapsed, deterioration nay occur in the coating which is visually evaluated. No consideration is given as to now the damage occurred. Rating Numbers 1. No apparent deterioration. 2. Slight deterioration. 3. Many areas of small change. 4. Severe damage and falls. B. Friability--A qualitative deteraination of the ability, of the material to crumble and be an airborn dust. Rating Numberi 1. Very hard--requires tools and force to dust. 2. Hard but will dust under mild-fingernail probe. 3. Soft but gummy. 4. Soft and crush in fingers.. C. Accessibility--A aeasure of occupant activity and location of the coating. Rating Number s 1* Totally encloeed and sealed off. 2. Partially enclosed, e.g.. suspened ceiling. 3. Open but above ten feet. 4. Open--gyms, halls and stairwells, cafeterias, ect. D, Air systems Rating Numberi 1. Coating not a. part of HVAC systems. Coating in extended part of air handling systems. E. Asbestos content-- A classitication of pmr cent of asbestos O* less than 1ft 1 1-10* 02039484 2 * 10-25* 3 - 25-50* 4 - greater than 50* To obtain the Potential Hazard Index, add the rating nuabtri determined for condition, friability, accessibility, and air syatea, then multiply the sue by the rating number determined for asbestos content. Potential Hazard Index ( Condition Friability Accessibility Air Systems) x (Asbestos Content} Recommendations for Normal Occupancy INKfiX- 0--No asbestos-- No hazard 1-4.-No significant hazard 5-9--Reviem in three Tears for evidence of deterioration * 10-15--Review in one year for evidence of deterioration 16-20--Individual revive to place in another category 21 and over--Recommend control measures EXCEPTIONS A. When condition; is so bad, or other renovations are to be made, make appropriate control measures for the work. B. An existing suspended ceiling does not provide adquate control for normal pccupancy. Not recommened as permanent control. Guidelines for Control Measures A. Removal B. Encapsulation C. Enclosure * A suitable elastomeric coating is available from U.S. Coatings Collaborative 201 Marginal Street Chelsea, Massachusetts 021*0 Phone No. 617-804-6644 ASBESTOS IN BOILER ROOMS AND PIPE COVERING 02090485 This menorandum discusses certain uses of asbestos which may be of concern in public schools, and recommendations to reduce the potential hazards from this asbestos. Asbestos say be used in the following locations: 1. As fire and thermal insulation in the boiler room and aechanieal rooas. 2. As a thermal insulation on the boiler. 2. As a thermal insulation on steaa pipes throughout the building. The potential hazard frost asbestos is frost any dusts which aay be developed. For this reason, the material of concern is that aaterial which is soaewhat soft or crushable. When the asbestos is bound into tile or transits,the only concern is from dusts of cutting operations. If in doubt whether the material contains asbestos, a sample aay be sent to the Division of Occupational Hygiene for analysis. In situations where an asbestos dust may be generated froa contact or other operations, an effective program should be developed to reduce the potential hazard. The following recoimendations are presented for inclusions in such a program: 1. All patching and repairing materials should be of non-asbestos content. 2. Asbestos containing materials should be thoroughly wet with water pTior to any repair work to reduce the generation of dusts. 3. All clean-up of the materials should be done by wet methods, i.e., mopping: no dry sweeping or vacuuming: .4 Pipe lagging should be painted with an elastomeric compound with appro priate fire rating and environmental durability.* 5. Where such surfaces such as pipe lagging are accessible to damage by building occupants, there should be mechanical enclosures to prevent punctures, and generation of asbestos dusts. -^ / 6. NIOSH approved dust respirators should be worn for all asbestos related work. If youvwould like.further information on removal procedures, or any other related cattcr, please contact the Division of Occupational Hygiene, 39 Boylston Street, Eoston. Telephone 727-3982. *A suitable elastomeric coating is available froa U. S. Coatings Collaborative, 201 Marginal Street, Chelsea, HA 021S0. TYPE OF COATING S2 DESCRIPTION TECHNICAL DATA FIRE HAZARD CLASSIFICATION Volume Solids by Weight! Viscosityi Theoretical coverage! Minimum dry film required! Wet film required! Coverage per gallon to achieve minimum dry film thickness! Coverage per gallon three coat system Drying timet At 50* relative humidity & 70c Complete cures TECHNICAL DATA SHEET 02099486 Flame Retardent - Latex - Elastomeric* Synthetic Rubber Polymer. ASBESTOS GUARD PIBER FIX (No. 719) ASBESTOS GUARD PIBER FIX (No. 719) it a self priming, thixotropic, elastomeric Tire retardent, protective coating, formulated especially for covering and containing sprayed on asbestos therm insulating materials and asbestos pipe lagging. Application by airless spray will provide necessary penetration and cohesion on friable coatings. Dried film is elastomeric and will with stand normal abraiding and abuse without cracking. References ASTM E 64 Flame Spread------.-.----------o Fuel Contributed------.--- -----o Smoke Developed--------------5 63* 15,000 - 30,000 cps. 1,010 mil, sq. ft./gal dry. Per coat 7 mils. Per coat 11.1 mils. 115 sq. ft. (allows for 20* loss) on smooth surface. Actual coverage depends on porosity and profile of the surface. 35-40 sq. ft. approximately. To Toucht To Recoati *s to 1 hour 1 to 2 hours. 4 to 7 days (80* strength - 72 hours) U.S. Coatings Collaborative Inc. Consultants & Suppliers to Industry H 201 MARGINAL STREET CHELSEA. MASSACHUSETTS 02150 (617) 664-6644 ftSBES70S GUARD FIBE.R FTX (No. 719) Page -2. J Colori White - Colors can be matched, minimum 1 quantity at additional cost. Fugitive tints available for multi coat systems. Thinneri Cleaneri Water (normally do not thin) Soap and water before cure. 02099 4-87 Mixing instructions! Stir thoroughly to obtain application consistency. Methods of application! Brush or airless spray. Do not apply when the temperature is expected to drop below 50 F. or if rain threatens before coat is dry. A minimum of three passes per coat is recommended with airless spray on friable asbestos coatings. First passi Straighton application. Second passi 45 angle to the right Third passi 45 angle to the left. Brush application is only approved for pipe lagging or similar type of asbestos applications. PROTECT FROM FREEZING Store above 45 F. WARNING Applicator must take all necessary precautions to avoid inhaling asbestos fibers and strictly observe guide lines set down by OSHA and the Massachusetts Division of Occupation Hygiene, for the handling and disposal of asbestos material. Information contained in this bulletin is presented in good faith, but it is not to be inferred that by publication hereof. U.S. Coatings Collaborative nor by the use of the employment by the reader of any suggestions or method contained hereinr 'that U.S. Coatings Collaborative, has assumed any liability for infringement or alleged infringement of any patent, foreign or domestic, nor given any warranty, expressed or ' implied. September, 1978 Supersedes all previous data sheets printed on this product. 1 l3bC*} 020994S8 ASBESTOS FALL OUT CONTAINED! High resolution Electronic Scanning Photo Micro graphs contrast deteriorating untreated Asbestos substrate and failing surface after a Hydroban 500E Treatment. Unique non polluting safe waterbase Polymer devel opment effectively restructures loose, friable Asbes tos dust and fibers in depth, to safely bind and pre vent dangerous Asbestos Fibers from becoming airborne. A viable alternative to hazardous, and costly efforts of existing physical Asbestos removals. Hydroban 500E Treatments do not endanger personnel and environment, thus contingent liabilities are avoided. No need to evacuate entire facility during the treat ment process. All Federal, State and Local safety and health regu latory requirements strictly followed. Properly applied, Hydroban 500E will effect and maintain minimum clean air standards related to asbestos contamination. Application of Hydroban SOOE Treatments to Exposed Asbestos Substrata V V KRC RESEARCH CORPORATION SIS N. WiSiiit<n Art.. Simmn N J. 01057 7* (509) 234-3060-3051 Orel* No. 456 on Data Cara tor mora information BUILDING OPERATING MANAGEMENT 75 llIcCv) KK<? RECEIVED SEP 0 7 1978 ?Q*itttcn &oti3oxdtion Pn*fteffc fa+ttmf* (9/UmUt*l Sfi*cUUtU4 315 NORTH WASHINGTON AVENUE. MOORESTOWN. NEW JERSEY 080S7 02099489 Respected Friend: Thank you for responding to our recent advertisement on Asbestos Contain ment in the August issue of Building Operating Management. Extensive studies and many installations have been effected in past years. These have since been "time" confirmed as to in-place treatment as a viable alternative to the hazards and excessive costs in removability. Successful project conclusions varied from boiler rooms, printing plants, drug manufacturers, a well-known telephone company, schools, cafeterias, libraries, hospitals, steel corporation. Federal and State facility, com mercial buildings, among many others. Sizes ranged from five hundred to hundreds of thousands of square feet. All successfully concluded with mini-; mum interruption of facility activity or shutdown. Accordingly, we are enclosing descriptive brochure, data sheets, and related literature that can serve your interest further as a possible alternative to removability. Applications of a Hydro-Ban Asbestos Containment Treatment can be concluded with your own personnel, or responsible contractors under our. monitoring and guidance. All regulatory requirements-with regard to health and safety to occupants, personnel and facility strictly adhered to. If you require additional information'; tests, or other procedures specific to Che conclusion of your problem, we further invite your interest. Ho obligation, of course. Yours Very Truly, KRC jRESEARCH CORPORATION Edmund A. Drazga jj -f-iMt uO QhtdL TELEPHONES: NEW JERSEY A/C 609-234-3060-3061 Membrane encapsulation provides an efficient seal and safeguard. . The treatment of Asbestos must provide long term high efficiency, dust sealing, which will not deteriorate in a wide range of chemical and temperature conditions, resist impact fracture, and maintain or enhance the original fire classification of the substrate. The system must be non-toxic. Bonus points would be a decorative finish, protection against oil or water ingress and possibly weather proofing. DECABEX FIRECHECK* MEETS THIS SPECIFICATION Q Not a conventional paint treatment but a high build elaetomcric itamien membrane cladding. With exceptional durability. ^ Which resists impact and can be armored at critical points. Oacade* Firochtck seals sprayed asbestos and encapsulate* damaged treat. Q Provides most effective seel, at least 16 times as thick as conventional paints. With highest fire ratings. o Is a complete barrier to water and oil. Oecadaa Firtohech encapsulate* asbestos in an elastomeric m*j. Q Resists a wide range, of chemicals and Umpdratures. O Provides decorative finish in a range of colors. Is easily maintained and repaired. . Decades Firectieck affectively seals aateni*v#4y Karrvd Asbestos. Encapsulation of all forms of asbestos in the elastomeric, impact resistant seal of a Decadex Firecheck membrane has been carried out successfully in major commercial and industrial buildings. PP membrane technology could solve your asbestos problem. Pentagon Plastics U.S.A. Ltd., 7G59C Fullerton Road, Springfield. Virginia 22153.17031 5G9-5277/8 JAl II. a rcuwinuhly ound proof" am*', record the ncript, taking your lime and speaking in a nor mal tone and rale. Remember, the persons listening should be able to identify with your voice over the period of their employment do not go "Hollywood" sound like i The the spoken word since the listener will be paying attention to t>* song and not the meseare several pr-- or "list**' v-r\0 &&>***- - Qw* 04 jm- -*eaning to your- woi Complementary music Musical background is just that: background! Well-known popular tunes can distract from ' .. une visuals to /our sound track. * iiAout an unlimited budget for training aids, the best all round aide for this item is a 35 mm camera. A "through-the-lens" focus camera is ideal, as the view in the rangefinder is that which is photographed. Familiarity with the standard camera and its ca pabilities are sufficient. But, 02099491 -*c.w dining ^dCKages and decided to opt for the former, your first step is to become more familiar with the rules of the game.. ASBESTOS FALL OUT CONTAINED! High resolution Electronic Scanning Photo Micro graphs contrast deteriorating untreated Asbestos substrate and failing surface after a Hydroban 500E Treatment. Unique non polluting safe waterbise Polymer devel opment effectively restructures loose, friable Asbes tos dust and fibers in depth, to safely bind and pre vent dangerous Asbestos Fibers from becoming airborne. A viable alternative to hazardous, and costly efforts of existing physical Asbestos removals. Hydroban 500E Treatments do not endanger personnel and environment, thus contingent liabilities are avoided. No need to evacuate entire facility during the treat ment process. All Federal, State and Local safety and health regu latory requirements strictly followed. Properly applied. Hydroban 500E will effect ana maintain minimum clean air standards related to asbestos contamination. Application ol Hydroban 500E Trsatrnents to Exposed Asbestos Substrata KRC RESEARCH CORPORATION SIS N WllkmglM Ait . Mwulnrl. MJ. 0I0ST P (SOU 4-JOS0-J8*l Orel* No 456 on Oaia Cara tot moro information BUILDING OPERATING MANAGEMENT ?5 PP MEMCRANE SYSTEMS PROVEN IN OVER 90 COUNTRIES FOR 11 YEARS 02093432 El Decade* Firecheck it a water-based. tingle component mobile paste tbit cm be applied by mott types ol industrial spray equipment or by brush. The product driet to form a thick tightly adherent elattic membrane which offers a waterproof, chemical resistant finish with a primary function in the drastic reduction of flame spread. Decade* Firecheck is unusual amongst fire resistant finishes in that it is also highly weather resistant and acts as a vapour barrier. Decade* Firecheck may be used on expanded polystyrene and polyurethane where it forms an abrasion resistant, flexible skm able to absorb bruising and indentation of the surface without rupture. The product may also be employed on all types of building boards and insulation materials including hardboard, chipboard, blockboard. sbesios. tiles ami panelling. Other applications 02099493 include the provision of a protective surface to lagging materials and the manufacture of expanded foam containers used in transport where fire regulations would otherwise restrict their use. , Oeeadex Firecheck may be used to protect the insulation of refrigeration units, either in conjunction with plastered surfaces or directly to the insulation material. Flexitape may be pressed into the first layer of Oeeadex Firecheck whilst still wet and allowed to dry. After the final layer of the compound hat been applied, the subsequent finish is armoured against extremely heavy impact. Oeeadex Firecheck it accepted by Lloyd's Register of Shipping and the Department of Energy, (Petroleum Production Oivision). Brooks Co. USA tl.OOOsq. ft. Mete! roof grayed end seeled wtih Oeeadex Firecheck. New England Cold Storage Co. Oeeadex sprayed over polyurethane loam as e fire barrier materiel in freeaer room. BECADEX FIRECHECK-an effective Sealer for Asbestos Oecadee Firecheck cnceosuletce end eeala sprayed asbesios Oeeadex Fisecheck vncepsulatrs and seels even damaged asbestos insulation. ) nsasUiiOb us feu condition. Decade* Firecheck encapsulates and seals all forms of asbestos in a durable, impact resistant sheath of very low permeability -- an ellective answer to a potential health haaard. The treatment is detailed in our leaflet 'Decade* Firecheck - an effective sealer for asbestos'. Front: Decade* Furcheck protects insulation on boos 11 orage tanks for South Alrtcan Breweries Ltd. li<0 , Cir) CiiVEiiA-t Witll nd Coilt'igs CVc#y gallon of Oca<Jc* Fiiccheck w.H give a TOTAL in.-uimum treatment ol 70tq. II. (of 1 .Bm* llitiel. Two Ijycn mull Ire jpril'wl <ri(J each mutt t* LAID on at a coverage of noi more than 140m. ft. (of 3.6rnJ/litre). Euch gallon 0I PF Sa.lcr Will cover between 145 and 7'IOiq. ft. lot 3.5 to 6.0mJ/Mrel. Other PP Pnmeff will average 200 to 300sq. ft. per gallon (of 5 to 7.5mJ/lnrc). Porous. Rough or Irregular surfaces will reduce the coverage. CONTAINER SIZES Decodes Firccheck is tvailjble in $ and 1 gallon containers. Scalars and Primers are supplied in 5-2'A and 1 gallon containers. 0^20994^ Ji I *:i3Ws>ai Oactdts Firvcftvck vopfivd to poJyurithono fomd initiation on Oil Tanka for B F. Oil Ltd. OOLVSTvnCNC " POL.VWRCTMANC FOAM. Oacadaa PirincK can oa op<d directly to t*aw *u*fcat. FOLVuRCTmANC MOlO'NGS. etc. Foiywratfjna molding mi integral m<a type tnou>9 fifit DO yv#n a tmgio coat of Pnm*r. ClOSS PaintEO SURFACES. Sand Mfo' *oe*yi*g Ftracnacv diractiy to tna tut fact. UNPAINTCO m&Tac SURFACES. Apply fun coat of pp Matai Ffimar. NCN-0lEEO*NG ASPHALT. aiTUMCN or PITCH IMPREGNATED SURFACES. Aop'y a coat of PP Bitgman Primgr ano anew to dry. taking cart not to o*0utn. For datumon turfacat naoia to 'Dtaadmg' roouott turtnar ftcnnicai advnto. MASONRY. CONCRETE. PLASTER, CEMENT, Etc. A cot of PP Saaiar it 'tou"ad to traat an tunaett. OVERCOATING OLO FIRCCHECK. Apply a tings# coat of pp Saaiar anp ano to dry Dvfore covering wtn new P raenac. CRACKS. SAPS and JQ/NTS LlAH. to MOVEMENT. Tnat# mutt d# oridgad uung Fiaxitao# *n<k it ootamaoia from tna tuooiior. pLEXiTAPE REINFORCEMENT. Additional turfaca tfngin can D aensavad on taoanddd potyttyrano or otnar mattnen oy amoaddmg 39.4" Ficmitaoa m tna Piracnoen. SUBSIDIARY PROOUCTS. pp $air. wood. Siluman, Matai ano PU Pfimara art avaiiapi#. togatnar wstn Fiaaitapa. Mobil Condnp Oil Production Platform: Otcadaa Fi##ch#ck applied 10 all ourlaces of Marine Mandolite vermiculne fire proofing and acoutnc muiiation, manufactured by MendOva* Ltd.. UK. ~) SPRAYING Decade* Firechcck con be applied using most types of industrial equipment, either airless or conventional. Two coats must be applied and it is strongly advised that different colors be used for the two coats to ensure even application. During spraying the operative must be satisfied that the finish reaches the correct thickness, details of which can be found in the section dealing with coverage. In very special circumstances, one single coat can be applied up to the prescribed thickness, although inform ation should always be obtained from the manufacturers before this method of application is adopted. BRUSHING Decade* Firccheck can easily be applied by brush and the correct method of application is to lay on the first coat evenly, finishing in one direction only. After the first coat has dried, the second layer should be applied and finished by brushing at right angles to the first. All brushes and equipment can be cleaned with water so long as the Decade* Firccheck compound is wet. COLORS Oecade* Firccheck is supplied in the following colors: White, light blue, cream, light gray, mid gray, black. Special colors can be made to order by prior arrangement. APPLICATION DATA \ Surfaces must be clean and free from dampness, oil, dirt, _J and dust. Follow the instructions on the can label, as these art not instructions lor use. HARDBOARD. WOOD. ABSORBENT COMBUSTIBLE MATERIALS SUCH AS STRAWBOARD. CARDBOARD. FIBERBOARD. ETC. Apply Firccheck directly to these surfaces. ll Brtakdewn o* eonvtntsonal roofing tyttem prror to rgmovol Kondrtgg Corp. 12.000 It. camputpv oMtci roof cl Oecadat f irochgcb bowtg appltad ar 2* kvaytd uroiK*w to fmaliio gyciam |3W HZT .LV-.TA I'OHT 01 TC!T earned out by the Laboratory (or the ) u1 Fuel and Hc.it Transfer in Ghent. ic/iplmii of the test materials: For tun ilays, the samples were rnctL-ly exposed at a icmpoMtufr of 70G.* 1*C. and a relative nutiiv of GO'L -- 5 4. Decadex Firrehr-ek * applied onto thttc ''\nnsisting of cement sheet 10mm thick ind with a volume s 650g/mJ. The totJi thickness ol the substrate, first i cnnd coal, jmounts to a0.4mm, the totel dy weight s Ig/m* -- 7Qg/m,. eription of the Test: Indication of reection with Fire: Test in accordance with the cification of the Belgian norm: NBN 713.030 `Reietie bij id van meienalen'. Result: The amount of reaction with is 0.02. The Inflammability: Test in accordance with the specification the French norm: "Securne contre I'incendi--decret No.' 1161 du 17 Octobre 1957; arret* du 9 Oecembre 1957ion mis* a jour a la date du 30 Mars 1965". Result: Non- smable material. The Surface Spread of Flame: Test in accordance with the :ification of the English norm: "B.S. 476 Fart 2--Surface ad of flam* test for materials". Result: Class 1: Surfaces i very slow flame spread. Contribution of Flam* Spread: Test in accordance with :ifications of the Dutch norm: NEN 1076--uitgave Oktobcr 3-hoofstuk C 'Bijdrage tot vlamoverslag en ontvlambaarheid". jit Class I: Materials which do not contribute to flame spread. TISH STANDARDS 476 Part 5. Ignitibility- 'olystyren* coated with Decade* Firecheek. Result Class P, easily ignitibi*. loss paint coated with one coat of PP Sealer and two coats lecadex Firecheek. (Test earned out by Warrington Research lerj Result: Clast P. not easily igmtible. 476 Part 6: Fire Propagation -- o'vstyrcn* coated with Decadex Firecheek. Result: Class CL 'V'*i*d out by 00E Fire Research Station, Boreham ^ljrts.) Polystyrene coated with Decadex Firecheek -- ill: Class 0. (Test by Warrington Research Center.) Doss paint coated with one coat of PP Sealer and two coats 'ecadex Firecheek. (Test carried out by Warrington Research :er. Result: (I) 2.6p, (ij) Zero (Class 0). 476 Part 7: Spread of Flame- urethane Result: Class 1 Polystyrene Result: Class 1 rstos Result: Class 1 Chipboard Result: Class 1 i Corrugated Cardboard Result: Class 1 All samples coated with Decadex Firecheek. . 476 Part 9: Smoke Emission-Result: 43.5% Transmission sity 8%. light absorption 81%. .T.M. 2843-70: Density of Smoke Emission-Result: Smoke sity 8%. Light Absorption 81%. IMICAL RESISTANCE: Samples of Decade* Firecheek film i prepared and aged for two weeks at a temperature of 20*C. pies were immersed in a rang* of organic and inorganic acids concentration of 10% for seven days and examined for signs breakdown. Exposure to a range of solvents and also to lm* substancet was also undertaken. The general resistance Jecadex Firecheek to acids, alkalis and solvents is good with exception of xylene, methyl ethyl ketone, cyclohexanone, horone. Ref: MPLI/7113. LT AGEING: Samples of Decadex Firecheek were prepared stored for two weeks at a temperature of 20*C. These were i placed in an oven at a controlled temperature of 10CTC for month to observe any loss of flexibility or embrittlement, ihe end of one month the Decades Firecheek film remained pletely flexible with an absence of yellowing or other V change. Ref: HA 12/73. ^RMOETER: Unsupported samples of Decadex Firecheek r prepared, aged for two weeks and then placed in a ihrrometer. The tests provided intermittent radiation of ultra rt and infra-red radiation and simulated tropical conditions lying heavy rainfall with an air temperature of 45*C. At the of S.000 hourt there was a dulling of the surface and tom* y lo-.l nl col'.' t/lhi.iwisc no ....... .. Mil l.u V. .I i / : ju VAPOUR PEHMCAUILITY: B.S. 3177. 7C,:(,RH. Test carried out by R. H. Harry Sixngcr. Sampler ol Decadex Fin-check were prepared and tested in accordance with the specification. Average vapour permeability was 25 ,2ymJ/daY. By comparison flexible PVC average; 50. nylon 6 euuals G5. and polystyrene averages 55. fief. CWO/RO/4G2/73 PHOTOGRAPHS OP ACTUAL 'FIRECHECK' TEST FLAME CONTACT REMOVED FROM ORDINARY toE.P.S. CEILING TILE AT SECONDS THIS SAMPLE DISC OFRANDOM THICKNESS IS MADE ONLY OF 'FIRECHECK' Pentagon Plastics U.S.A. Ltd., 76S9C Fullerton Road. Springfield, Virginia 22153. (703) 569-5277/8 * 13U.iV I 3 / Sound absorption The following reverberation absorption coefficients were measured in a test by the Acoustical Investigation & Research Organisation Limited Frequency bands in region (cycles) Thermal insulation k--1.00 Stu in/ft *h*F k-0.14W/m*C X-0.124keal rn/m*h*C A separate information sheet is available, see page 36 b Swimming pool at Arthur Guinness and Company Limited. Dublin c Prado Museum. Madrid by courtesy of Revestimientos Aislantes Rcfractanos I Zichy 125 0.20 250 0.30 500 0.50 1.000 0.65 2.000 0.90 4.000 0.90 The test sample consisted of Audex 12 5 mm (} in) thick applied 3 by spraying machine to expanded metal lath to which two coals of lirjhtweighl piaster had been applied. There was a 7.5 cm (3 in) air gap between the sample and the floor of the test chamber Audex acoustic pia&ici 3 -i Audex is a decorative acoustic plaster with a proven history of successful sound control. It con sists essentially o< vermiculitc and mineral binders. It is clean to handle and is asbestos-free. Audex is applied by a special spraying pro cess giving an attract* ve textured finish and ensuring maximum sound absorption. No further decoration is nccessaiy. It presents an unbroken sofln as an alternative to the repeated pattern of a panelled ceiling Its physical structure nnd insulating properties make it valu able for anti-condensation treatments - for instance in power stations, swimming pools and kitchens. Corinthia Patace Hotel. Malta tV >J o 9 S' o c r? V> VX S' 'Ll C