Technical Specifications

Product Details:

The core advantages of hot melt adhesive for automotive air conditioning filters are as follows:
1、 High performance adhesive properties
High strength bonding: With a shear strength of 1.5~2.0MPa, it can resist the impact of high-speed airflow on the filter element and prevent the filter paper from detaching from the frame
Wide temperature range adaptability: EVA based adhesive can withstand temperatures ranging from -30 ℃ to 80 ℃, while PA/PUR adhesive can withstand temperatures up to 200 ℃, meeting the extreme temperature requirements of the engine compartment
2、 Environmental and safety advantages
Solvent free and environmentally friendly: certified by SGS, with low VOC content and no irritating odor, in compliance with automotive interior safety standards
Chemical corrosion resistance: resistant to oil and acidic gas erosion, extending the service life of the filter element (such as PA glue resistant to 135 ℃ oil immersion for 192 hours)
3、 Production efficiency optimization
Fast curing: short opening time (5-10 seconds), compatible with automated production lines, improving production capacity
Diversified construction: supports spraying, scraping and other processes, with uniform adhesive layer thickness (0.1~0.3mm)

Automotive air conditioning filter edge hot melt adhesive is a key material specifically used for fixing filter paper edges, bonding frames, and sealing. It needs to have characteristics such as high temperature resistance, oil resistance, and environmental protection. The following are comprehensive technical points and application analysis:
1、 Core Features
Temperature resistance performance
The working temperature usually needs to adapt to the automotive working conditions of 140-160 ℃, and some PA (polyamide) rubber particles can withstand high temperatures of 200 ℃
EVA and PO (polyolefin) adhesives are more suitable for folding and shaping filter paper due to their good fluidity
Environmental certification
Through environmental certifications such as SGS, we ensure that there are no solvents, no irritating odors, and comply with automotive interior safety standards
Adhesive strength
Must have high initial adhesion and durability, be resistant to oil and gasoline immersion, and avoid filter cartridge delamination and failure

2、 Mainstream type
EVA hot melt adhesive: Low cost, suitable for folding filter paper edges, but has weak temperature resistance (about 120 ℃)
PA/PUR adhesive: high temperature resistant (above 200 ℃), used for bonding oil filters or high-strength interfaces
PO glue: It has strong aging resistance and is suitable for sealing the frame of air conditioner filter.
3、 Application process
Glue coating method: Automatic spraying (spiral spraying, scraping coating) is the main method to ensure uniform adhesive layer.
Curing time: Short opening time (a few seconds), suitable for automated production lines.