pur wc-766 a b 美国bjb

bjb polyurethane wc-766 a/b

polyurethane

bjb enterprises, inc.

产品说明：

wc-766 a/b is a two part, clear, colorless 65 shore durethane castable product that is commonly used to make clear ortinted parts of all kinds. when used at room temperature, castings1 / 8 " thick or larger can be readily cast. castings that are lessthan 1 / 8 " thick generally require a mild post-cure.
product highlights:

exceptional clarity, uv and oxidationresistant

tough and impact resistant

15-20 minute working time

no odor, solvents or exudates

good exterior weatherability

物性信息：

基本信息
特性

抗氧化

抗撞击性，良好

抗紫外线性能良好

耐气候影响性能良好

气味低到无

清晰度，高

韧性良好

用途

透明或半透明配件

rohs 合规性

rohs 合规

外观

无色

加工方法

浇铸

物理性能额定值单位制测试方法比重
    -- 11.03g/cm³
    -- 21.08g/cm³astm d792收缩性0.40%astm d2566热固性额定值单位制测试方法gel time20.0min
work time 3(25°c)15.0min
补充信息额定值单位制测试方法cure time (25°c)5.0 到 7.0day
硬度额定值单位制测试方法肖氏硬度 (邵氏 d)60 到 70
astm d2240机械性能额定值单位制测试方法拉伸模量214mpaastm d638抗张强度 (屈服)31.7mpaastm d638伸长率 (断裂)230%astm d638弯曲模量200mpaastm d790弯曲强度2.17mpaastm d790弹性体额定值单位制测试方法撕裂强度80.6kn/mastm d624冲击性能额定值单位制测试方法悬壁梁缺口冲击强度480j/mastm d256热固性额定值单位制测试方法热固组件
    部件 a按重量计算的混合比: 75, 按容量计算的混合比: 72
    部件 b按重量计算的混合比: 100, 按容量计算的混合比: 100
贮藏期限26wk
热固性混合粘度
brookfield    25°c 4650cpbrookfield    25°c 5550cpbrookfield    25°c600 到 700cpbrookfield脱模时间 (25°c)360 到 480min
补充信息额定值单位制测试方法in order to achieve maximum physical properties, a postcure with heat is re bjb recommends 24 hours at ambienttemperature, 77°f (25°c), followed by 16 hours at 180°f (82°c).support of the part may be required to prevent part deformationduring the heat curing process.