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              EN/CN

              Product

              WLM1

              Characteristic

              ● Lead-free compatible and Halogen-free material

              ● High Tg: 180℃ (DMA)

              ● White Color with high reflectivity of visible light

              ● Less discoloration after heat treatment and light irradiation

              Application Area

              ● Suitable for LED, COB, IC Package material, mini LED and etc.

              • Product Performance
              • Product Certificate
              • Data Download
              Items Condition Unit Typical Value
              Whiteness Internal Standard %
              88
              Tg
              DMA

              181
              Td 5% wt. loss 374
              T288
              TMA min >60
              T260 TMA min
              >60
              Thermal Stress
              288℃, solder dip
              - Pass
              CTE (Z-axis) Before Tg ppm/℃ 26.8
              After Tg ppm/℃ 123.7
              50-260℃ % 1.9
              CTE (X/Y-axis)
              Wrap-α1
              ppm/℃
              11-13
              Fill--α1
              ppm/℃
              11-13
              Arc Resistance D-48/50+D-0.5/23 s 180
              Dielectric Breakdown D-48/50+D-0.5/23 kV 45+kV NB
              Peel Strength (1Oz) 288℃/10s N/mm 0.93
              Flexural Strength(LW/CW) A MPa 480/370
              Water Absorption E-1/105+D-24/23 % 0.08
              Flammability
              C-48/23/50
              Rating
              HB

              Remarks:

              1. Specimen thickness: 1.0mm. Test method is according to IPC TM-650.

              2. All the typical values listed above are for your reference only and not intended for specification. Please contact Shengyi Technology Co., Ltd. for detailed information. All rights from this data sheet are reserved by Shengyi Technology Co., Ltd.

              Explanation:C=Humidity conditioning, D=Immersion conditioning in distilled water,E=Temperature conditioning

              The first digit following the letter indicates the duration of preconditioning in hours, the second digit the preconditioning temperature in and the third digit the relative humidity.


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