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1、學號：防水材料2009~2010學年秋季學期學院:材料科學與工程學院專業(yè)班級:高分子07-2班姓名:王凌云Howtowaterprooffabric:leathershoes,clothing,andmoreWaterproofingleatherisoneoftheeasiestwaystoextenditslife.Learnwhatproductsareoutthereandhowyoucanprotectyourfavoriteleathers.Waterandleatherdonotmix.Leatherthathasbeendampenedorexposedtoexce
2、ssiveamountsofmoisture,losesitsnaturaloils,leavingyouwithstained,dry,stiffmaterial.Waterproofinginvolvesapplyingasurfacecoattoleatherthatwillhelptopreserveitsquality,workmanshipandvalue.Whenyouwaterproofsomething,you'reprovidingabarrierthatwatercannotpenetrate.KNOWYOURLEATHERThereareseveraldif
3、ferenttypesofleatherwhichareusedinmakingmanydifferentproducts.Itisofutmostimportancetoknowwhichtypeofleatheryou'redealingwith.Harshsiliconespraysandwaxes,forexample,cannotbeusedonthin,delicatesplitleathers.Likewise,youwouldreceiveinadequatewaterproofingprotectionfromanubuckleathercoatingifyoua
4、ppliedittoaworkorhikingboot.HOWMUCHPROTECTIONDOYOUNEED?Howmuchprotectionyouwanttoapplytoyourleatherisuptoyou.Itemsthatwillbeusedoutdoorsfrequentlyindamporwetconditionsshouldbetreatedwithmaximumprotection.Bootsandshoeswornduringcoldwintermonths,mostoftenbenefitfromheavyoils,waxesanddressings.Dr
5、essgloves,nubuckshoes,andsuedecoatsthatareonlyexposedtoaminimalamountofmoistureneednotbetreatedinthesameway.COLORCHANGESBeforewaterproofinganything,it'salwaysbesttoperforma"spotcheck"Manyleathercleanersandprotectorscanchangethecolorortextureofleather.Findasmallpatchofleatherandtreatthespot,all
6、owingittosoakinovernight.Ifyou'resatisfiedwiththeresult,goaheadandtreattherestoftheproduct.NOTEABOUTDELICATELEATHERSSplitleathers,suchassuedeandnubuck,shouldneverbetreatedtraditionaloils,waxesorsiliconesprays.Heavydutyoilsandwaxeschangethecolorandtextureofdelicateleathers.Whenshoppingforanappr
7、opriatewaterproofingproductfortheseleathers,lookforonethatspecificallystatesitcantreatnubuckandsuede.DRESSINGS,OILSANDWAXESHeavydutydressingsandwaterproofingoilsandwaxesaresoldasbrush-onorrub-onproducts.Theyareusuallyoilbasedandcombinet
