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sion resistance to meet the most arduousperformance requirements for glass-runseals. It also withstands corner-mouldingoperations.2321: A well-established glass-run coating,offering low friction and excellent abrasionresistance. 2321 products are two-component,solvent-borne coatings that are particularlyeasy to apply.Appearance2222: A decorative finish for rubber, leather,vinyl and other synthetics. It comes in manycolours, creating opportunity for eye-catchingapplications, such as iridescent seats.In addition to their appearance, 2222 productsoffer low friction and outstanding resistanceto weather and to wear. These are single-component,waterborne coatings.2322: Whitford’s most widely used decorativefinish for rubber, leather, vinyl and othersynthetics, available in a wide range ofattractive colours. In addition to theirappearance properties, 2322 products offerlow friction, excellent abrasion resistanceand excellent freeze-release properties.These are two-component, solvent-bornecoatings that are particularly easy to apply.For more information, as well as a copyof the test results, contact your Whitford representativeor the Whitford location nearestyou (see the back cover).Xylan 1642 to Xylan 2320: A quiet revolutionXylan 1642 is one of Whitford’s most popularproducts, used to coat weatherstripand glass runs for low friction, wearresistance, etc. To improve performancebeyond what has been highly successful,1642 was subjected to the new LNT technology(with all its excellent properties, itis a noise generator under wet conditions).The results are outstanding.Decibels (dBA)Viscosity (Pa.s)807060504030203.00E+002.50E+002.00E+001.50E+001.00E+005.00E-011642232016422320Dry WetRandom VibrationsXylan 1642Xylan 2320New standard: 37 dBA1642Dry23201642Wet2320Sine VibrationsMixed Pot Life @ 25˚CMaximum sprayable viscosityXylan 23200.00E+000 6:00 12:00 18:00 24:00 30:00 36:00 42:00 48:00Time (hours)Look at the astounding change in potlife (see chart).The revolution in the transition fromXylan 1642 to Xylan 2320 doesn’t stopthere. Other improvements in the new versionof this product are equally impressive(see below):Characteristic 1642 2320 %Gloss Matte LowCrosshatch Pass PassToluenedouble rub 50 200+ 400CoFStatic 0.21 0.10 40Soapy water @ 60 3-4 5 >40Cataplasm Test Pass PassWater Immersion(96 hrs @ 80˚C)Appearance Pass PassCross hatch Pass PassPot life (mixed) 4 hrs 48 hrs 1200Of course, Xylan 1642 remains availableto those who wish to use it. Nevertheless,based on all the significantimprovements made, Whitford recommendsthat new and old users alikeshould test and evaluate Xylan 2320 forboth ongoing and new applications. It is agenuinely superior product.