808AB-G耐高温环氧树脂灌封胶 变压器电路板电子元器件灌封保护耐热 电子胶水

808AB-G系双剂型耐高温环氧树脂绝缘密封材料，广泛应用于电子零组件、电子变压器、充电桩、滤清器、负离子发生器、电容、电源模块、LED模组、线路元件、水族水泵、电力电器部件、汽车零部件、机电五金、光电灯饰等的绝缘灌注、粘接、防潮封填等。混合后黏度低、流动性强且具有适当的可操作时间，易于生产作业。固化物收缩性低、表面光亮、坚硬、附着力及密封性强，耐热性能优越，高温下具有较好的机械强度，耐化学品特性优良，具有优良的电气特性与物性。
固化前参数：
                   主剂808A-G 
外      观      黑、灰、白等色液体 
比      重      1.50±0.05 
粘度（25） 6000-8000cps 

                   固化剂808B-G
外      观      褐色液体
比      重      1.05±0.05
粘度（25） 70-150cps

混合比例：     A ：B = 5 : 1 （重量比）
可使用时间：  
主剂和固化剂混合后的可使用时间，是依混合总量和操作的温度而定。通常100克的混合胶在25℃时可使用时间为40-60分钟；因此，应根据实际使用情况合理调配胶水以免浪费。
固化条件：
1、常温下一般只需要10-15小时固化，3-5小时初步固化；
2、此外本司工程部还可根据客户需求调整固化时间。
固化物特性
耐电压        Kv/mm       16-18            
耐热温度      ℃              120
硬度          shore  D       80-90           
绝缘电阻     Ω-cm          1.5×1014

808ab-g is a double dosage high temperature resistant epoxy resin insulating and sealing material, which is widely used in the insulation pouring, bonding and moisture-proof sealing of electronic components, electronic transformers, charging piles, filters, anion generators, capacitors, power modules, LED modules, circuit components, aquarium pumps, power and electrical components, automobile components, electromechanical hardware, photoelectric lighting, etc. After mixing, the viscosity is low, the fluidity is strong and the operation time is suitable, so it is easy to produce. It has low shrinkage, bright and hard surface, strong adhesion and sealing, excellent heat resistance, good mechanical strength at high temperature, excellent chemical resistance, excellent electrical and physical properties.

Parameters before curing:

Main agent 808a-g

Black, gray and white liquid

Specific gravity 1.50 ± 0.05

Viscosity (25) 6000-8000cps

Curing agent 808b-g

Exterior brown liquid

Specific gravity 1.05 ± 0.05

Viscosity (25) 70-150cps

Mixing ratio: A: B = 5: 1 (weight ratio)

Available time:

The usable time of main agent and curing agent after mixing depends on the total amount of mixing and the temperature of operation. Generally, 100g of mixed glue can be used for 40-60min at 25 ℃; therefore, the glue should be mixed reasonably according to the actual use to avoid waste.

Curing conditions:

1. Generally, it only takes 10-15 hours to cure at room temperature, and 3-5 hours to preliminarily cure;

2. In addition, the Engineering Department of our company can also adjust the curing time according to the needs of customers.

Curing properties

Withstand voltage kV / mm 16-18

Heat resistant temperature ℃ 130-150

Hardness Shore D 80-85

Insulation resistance Ω - cm 1.5 × 1014