In Fort Lauterdale, FL: SOUNDOWN CORP. …

1 >:.:.:.::..:::::. SOUNDOWN S SYLOMER isolation foam urethane products were first introduced into marine yachtconstruction by our engineering affiliate J&A Enterprises, in 1983 on the mega yacht SHERGAR. Sincethat time this material has become the standard for vibration isolation pads used in isolation of finishsurfaces in yacht interiors, foams are most often used for elasticsupport of cabin soles, effectively isolatingstructureborne noise from engines, gears, pro-pellers, and water impact. They also isolatefootfall noise transmission from hard flooredmain deck spaces (galley) to cabins foams, when bonded to wooden firring strips, provide an excellent isolated support forbulkhead and hull side linings when the highestnoise reduction is standard grades of Sylomer used in theseapplications are the soft R-12 which is grey incolor, and the slightly stiffer L-12 which isgreen.

2 Cabin soles are normally supported withthe L-12 material using a coverage of about10% ( 2 strips on 20 centers).Bulkhead and side lining panels are usually sup-ported on the R-12 material at a coverage of5 to 15%.Sylomer Ystructure ----sideliningSylomer is a high density elastic urethane foam. It is readily bonded to wood, fiberglass, aluminum, andsteel, making it easy to has high endurance against chemical and physical abuse, giving it a long life in the marine elastic properties are excellent for isolating vibration and structureborne noise over the full rangeof tactile and audible L-12 and R-12 are 1/2" thick and come in rolls 5'x . Shorter lengths are available, and thematerial may be purchased in strips (2" strips are standard stock item).

3 [A wider range of stiffness andthickness is available on special order from SOUNDOWN .]Sylomer products from SOUNDOWN are a high tech innovation for the marine market. To be sure that ourcustomers gain the greatest benefit from them we are ready to support them with our engineeringassistance, when Marblehead, MA: SOUNDOWN Lime StreetMarblehead, MA 01945 Telephone l-800-359-1036 Fax (781) 631-9231 FOR PEACE AND QUIETMATERIALS FOR NOISE REDUCTIONIn fort lauterdale , FL: SOUNDOWN 33rd StreetFort Lauderdale, FL 33315 Telephone (954) 761-9188 Fax (954) 761-3136 VIBRATION ISOLATION PADSSOUNDOWN ADHESIVESFOR SYLOMER PRODUCTSThe following table lists the adhesive systems that SOUNDOWN recommends forinstallation of Sylomer isolation foam BOND( FULLER)(2049)MATERIALS TO BE BONDED TO SYLOMERWOODFIBERGLASSALUMINUMSTEEL** (primer 205-260 for metal)**SOUNDOWN3M(#1537)SIKAFLEX(201 or 211(fast cure)) SOUNDOWN LIME STREETMARBLEHEAD, MA 01945sylomer,ml2 Material: cellular Polyetherurethane (PUR), mixed cellstructureColour: greenStandard sizes, on stock:Thickness:12 mm for Sylomer L12 Rolls:Strips:width m, length mwidth up to m, length mPhysical PropertiesRecommendations if used as an elastic bearing.

4 Operating load range: 0 to N/mm2(permanent and variable loads)Permanent static load range: up to N/mm2 Load peaks: up to 2 N/mm2(rare and short-term loads) 1N/ = 145 psiQuantityValueUnitTest StandardRemarksDensity300kg/m3 DIN 53420 Static Modulusof toDIN 53513 Tangential modulus,see fig. 2 Static Shear *Similar toDIN 53513 Average value forsmall deflectionsDynamic Modulusof ElasticityDynamic -1 . *Similar toDIN 53513 Similar toDIN 53513 Depending on load andfrequency, see fig. 2 Average value forsmall deflectionsMechanicalLoss 53513 Compression 5357250% compression, 23 C, 70 h30 min after decompressionTensile *DIN 53455-6-4 MinimumElongation at Break300%DIN 53515 MinimumElectrical VolumeResistivity10 53482 For dry materialThermal (m.)

5 K)DIN 52612/lInflammabilityB2 DIN 4102 Normal inflammable@ Load Deflection Curves Sylomer RDeflection (mm)Samples: 300 mm x 300 mm. 3 0 load cycle. betwwn flat PlatesLoad rate: 1% of the th,ckneSS per second. amblent tempHat re@ Modulus of Elasticity Sylomer@R@ Long-term Creeping lest Sylomer R0 05 0fp 0001 FLul0 00 Speclfx load (Nlmmz)St&c moduius of elastaty: Tangential modulus from the load defiectlon CUlYeSDynamic modulus of elastaty: Samples 300 mm x 300 mm x 25 mmS,nuso,da, exc,tat,an, ampl,t de of +I- mm@ Natural Frequency*5 6 78 9 10 16 16 203040 50@ Vibration isolation2061 I ! I I II100804,.:603$=40@g30d20161412105678910 1214161620 Natural frequency of the system (Hz)0 00 Duration of loading (h)@ Long-term Creeping of theDynamic Modulus Syiomer@Rof ElasticityParameter:Permanent loadParameter:Duration of loadingDeterm,nat,on of the elasticmodulus by measuringthe natural frequency afterImpact load (N/mmz)Nefural frequency 01 the wslern IHZI* Natural frequemy of a syst.

6 ~ consist,ng of ar, mass and an elastic lay&r- of sy1 Qner= SOUNDOWN LIME STREETMARBLEHEAD, MA 01945 Material: cellular Poiyetherurethane (PUR), mixed cellstructureColour: blueStandard sizes, on stock:Thickness:12 mm for Sylomer R12 Recommendations if used as an elastic bearing:Operating load range: 0 to N/mm2(permanent and variable loads)Roils:Strips:width m. lenqth mwidth up to m, length mPermanent static load range: up to N/mm2 Load peaks: up to 1 N/mm2(rare and short-term loads)Physical PropertiesQuantityValueUnitTest StandardRemarksDensity220kg/m3 DIN 53420 Static Modulusof toDIN 53513 Tangential modulus,see fig. 2 Static Shear toDIN 53513 Average value forsmall deflectionsDynamrc Moaulusof toDIN 53513 Depending on load andfrequency, see fig.

7 2 Dynamic toDIN 53513 Average value forsmall deflectionsMechanicalLoss 53513 Compression 5357250% compression, 23 C 70 h30 min after decompressionTensile 53455-6-4 MinimumElongation at Break300%DIN 53515 MinimumElectrical VolumeResistivity10 53482 For dry materialThermal (m . K)DIN 52612/lInflammability82 DIN 4102 Normal inflammable1 = 145 psi@ Vibration Isolation@ Load Deflection Curves Sylomer LParameter:Power transmissicloss in dB, isolatiofactor in %789101214161620304050~at~tal frequency of Ihe system (Hz)6 7 8 9 10 11 12 Deflectton (mm)Samples: 300 mm x 300 mm. 3rd load cycle. between flat plates@ Modulus of Elasticity Sylomer@L@ Long-term Creeping Test Sylomer@LParameter:PermanentloadDuration of loading(h)n no0 load (Nlmmz)Static modulus of elasticity: Tangential modulus from the load defhscbon curvesGynamic modulus of elasticity: Samples 300 mm x 300 mm x 25 mmSwsadal exatatlon.

8 Amplitude of +I- mm@ Long-term Creeping of theDynamic Modulus Sylomer@Lof Elasticity@ Natural Frequency*010 Determlnatlon Of the elasticmodulus by measuringthe natural frequency afterimpact excltatlon56789101214161820/40 load (Nlmmz)0 00 Natural frequency of the system (HzJ)