Product attribute WL-1520 is one is used at producing product of SMC/BMC of class A surface colophony of not saturated polyester. This colophony is had it is good to add stiff stability, hear resistance, be able to bear or endure ability in swimming glossiness of good, goods is advanced advantage. Main application WL-1520 basically uses assembly of adornment of Yu Weiyu goods, building materials, car to wait to ask to goods surface taller domain. WL-1520 has stability add stiff performance, after adding additive of the low systole such as WL-3803, WL-3892, low outline, can make SMC/BMC of standard low systole.

China unsaturated polyester resin (UPR)
China unsaturated polyester resin (UPR)

≤0.1% GB/T8237-2005 of moisture of 7-11 minutes GB/T7193-2008 of reactivity of ℃ of GB/T7193-2008 82 of % of 58-64 of content of solid of 12-18mgKOH/g GB/T2895-2008 of acid value of 25 ℃ 600-1000mPa.s GB/T7193-2008 notes viscosity of GB/T8237-2005 of weak Huang Touming of exterior of standard of test of unit of scope of product standards function: 82 ℃ reactivity: 1.0g CH50 is added in 50g colophony (AKZO-Nobel) . Liquid colophony function (typical cost) keep in storage of standard of test of unit of property numerical value period (did not cause, darkness is in) , 20 ℃ colophony is pouring in March system performance (typical cost) 3400Mpa GB/T2567-2008 of quantity of model of flexibility of drawing of 55Mpa GB/T2567-2008 of tensile strength of standard of test of unit of property numerical value ruptures 110Mpa GB/T2567-2008 of flexural strength of outspread rate 1.8% GB/T2567-2008 curves stretch model to measure heat of 6KJ/m2 GB/T2567-2008 of 3100MPa GB/T2567-2008 impact strength to be out of shape temperature condition of solidify of 120 ℃ GB/T1634-2004: Cold curing 24 hours, the solidify after 40 ℃ , 60 ℃ , 80 ℃ each 2 hours, 1h of the solidify after 100 ℃ ; Test condition: ℃ of temperature 23±2, relative humidity 50±6 % . Service instruction and note WL-1520 cooperate to use with WL-3892 normally, use at producing low contractive moulding to expect. Usually, of WL-1520 and WL-3892 deserve to compare for 60:40, also can adjust according to actual condition proper motion. According to the memory requirement of SMC goods, pair of right amount benzene Kun can be joined in the recipe (it is base) with colophony and gross of low contractive additive. Store condition 1, before using colophony should with be being packed formerly (the damaged that avoids bucket and bucket) store existence under 25 ℃ dry indoor; 2, of temperature lift with radial illuminate can apparent ground reduces storage life, sun should prevent when storing point-blank and be far from heat source; 3, the liquid of colophony of not saturated polyester that contains styrene is combustible article, bright fire should is far from when storing. The attention consults safe data is expressed. All all sorts of data come from the thorough research at us and extensive practice, it is completely authentic consequently. But, because goods production suffers multiple element effect, specific to afore-mentioned data and product application and the real property that treatment brings about, effect and influence and what arise from this is direct with indirect loss, we do not assume responsibility. Before choosing afore-mentioned products, ask user proper motion to examine to index of concerned product quality, function, security reachs other data and try to affirm. Meanwhile, the user returns the act that should notice all sorts of concerning to prevent inroad, registered trade mark and patent profit. We do not assume responsibility to this.

2025
Newsolar Conference
15-18 December

New York City