Automobile lamp bonding and sealing silicone manufacturers share instructions for use of automobile daytime running lamps and work lamp sealants
With the popularization of daytime running lamps and work lamps in automobiles, the use of traditional ethanol-free sealing and waterproof adhesive lampshades will appear at work. The following undesirable conditions
: Car lights will produce volatile substances under high operating temperatures, which will cause corrosion and fogging of the reflectors and transparent lampshades, affecting the luminescence and giving a poor appearance.
During long-term rainy periods (days), the ethanol-free sealing is not resistant to hydrolysis and is prone to glue opening and water leakage.
The above special usage conditions determine that the existing factory-produced de-ethanol sealing silica gel is not suitable for use on automobile daytime running lights and work lights.
Instructions for use of automotive daytime running lights and work light sealants
Xingyong, an old manufacturer of automotive electrical sealants in Shenzhen, designs and produces a dealcoholized sealing silica gel specifically for automotive daytime running lights and work lights, in the form of paste. Liquid, black, packaging methods include,,, suitable for manual operation and automatic dispensing machine operation.
Yongwei Silicone Analysis and Comparison of Dealcoholized Silica Gel and Dealcoholized Silica Gel in Car Light Tests
1. Corrosiveness and Fogging Test
Test conditions Hours after curing of silica gel, heating to degree, time Disassemble and observe after an hour
2. Hydrolysis resistance and water resistance test
Test conditions: After the silica gel is cured, put it into water for 1 hour and then observe it for a day. , the lampshade can be pried open gently with a tool. After being soaked in water for a long time, the waterproofness and adhesive strength will decrease, and it is not resistant to hydrolysis.
There is no water leakage inside dealcoholized silicone car lights, and the bonded parts cannot be pried open even with strong tools. There is no change in waterproofing or bonding strength after being soaked in water for a long time.
3. Adhesion test of different materials
The test conditions are common car lamp materials, aluminum shell + spray paint
De-ethanol silica gel has good adhesion to lampshades and aluminum shells , Yes, the aluminum shell + spray paint cannot be bonded.
Dealcoholized silica gel has strong adhesion to lampshades, aluminum shells, aluminum shells + spray paint.
(This article is compiled and reprinted from Shenzhen Xingyong Thermal Silicone Co., Ltd.)
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