LED digital tube package epoxy resin adhesive

Manual
Main agent 708A curing agent 708B
【Features】
● This product is digital, dot matrix display, etc. (LED Display) special packaging glue, a mixture of low viscosity, good fluidity, easy deaeration can be used for a long time, easy to operate;
● Can the temperature or high temperature curing, curing speed;
● cure rate after the income of small places, good moisture resistance, good gloss, high hardness;
● The uniformity of curing light, not color, mechanical strength, excellent electrical characteristics, resistance to heat and atmospheric aging;
【Appearance】 transitivity
Model 708A 708B
Color purple liquid transparent transparent liquid
Specific gravity 25 ℃ 1.17g / cm 3 1.16g / cm 3
Viscosity 25 ℃ 7000-10000cps 180-250cps
Shelf life 25 ℃ 6 months 3 months
Usage
Mixing ratio: A: B = 100:100 (weight ratio)
Mixed viscosity, 25 ℃ :1000-1200cps
Gel time: 80 ℃ × 70-80 minutes
Use time: 25 ℃ × 4 小时
Curing conditions: 1,75 ℃ × 4 小时 +85 ℃ × 4 小时
2,90 ℃ × 6-8 hours
● plastic products to seal the surface needs to be dry and clean;
● 708A agent should be heated before use to facilitate preheating reduce the viscosity of the mixture off the bubble, it is recommended preheating temperature of 60 ℃ × 1 hour or more;
● A agents and B agents by weight ratio of 1:1 with plastic, and weighing accuracy, please remember that the ratio is the ratio of weight rather than volume, A, B agent to be mixed, stir in order to avoid incomplete cure;
● A, B and then warm the mixture 10 minutes, 60 ℃; and vacuum deaeration for 20 minutes;
● Glue the product in 15-25 minutes and then vacuum deaeration;
● 708A / B can be spread with the use of agents and color paste, add the recommended dosage is:
Red PC-003 2-6% cream
Dispersant DF-090 2-5%
【Characteristics】 after curing
Hardness Shore D 88-92
Volume resistivity 25 ℃ Ohm-cm 1.2 × 1015
Surface resistance 25 ℃ Ohm 5.4 × 1014
Withstand voltage 25 ℃ Kv / mm 22-24
Water absorption of 100 ℃% 1 小时 0.35
Glass transition temperature ℃ 115
Linear expansion coefficient cm / cm / ℃ 6.6 × 10-5
【Note】
● This product is the main agent and curing agent in the mixture will start to react slowly, will gradually change its viscosity high, so be sure to use the time you are finished, so as to avoid excessive viscosity can not be used. Pouring baking after you enter into in order to avoid moisture absorption caused by slow surface dry or brittle hair;
● There will be long-term placement Segao precipitation and, therefore, warm-up prior to use first 80-120 ℃ and stir 30-50 minutes after use.
● curing agent 708B is easy to absorb moisture, it will absorb moisture from the air to form precipitates or crystalline, so after use, immediately tightly closed to prevent the deterioration can not be used;
● temporary deployment of a good adhesive, or there is no surplus, immediately sealed to prevent moisture absorption surface caused by the phenomenon of poor quality;
● Do not get onto the skin or eyes, touches the skin washed with the detergent; if they inadvertently touches the eyes, please rinse with water, then taken to hospital treatment.
● in a large number before you use a small amount of trial skills to master the use of products in order to avoid errors.
【Storage and packaging】
● This product must be in a ventilated, cool, dry place sealed, A dose shelf life of six months, B agent shelf life of three months, expired trial, the pass can continue to use;
● Package size for each group of 10kg, which contains the main agent 5kg / pail, hardener 5kg / bucket.

Performance data is at a temperature above 25 ℃, humidity of 70% measured under laboratory conditions typical of the data, when used only for customer reference and can not guarantee that a particular environment can achieve all the data, please customers in the used to test the data subject.