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The most comprehensive guidance to the application of solar tape

2024-11-25 10:48:00

The Role of Adhesive Tapes in Solar Photovoltaic Manufacturing

Adhesive tapes play a critical role in various aspects of solar photovoltaic (PV) module manufacturing. From bonding module frames, securing back supports, and protecting edges to organizing conductive wires, insulating busbars, and temporarily sealing laminations, different types of adhesive tapes are integral to ensuring the reliability, efficiency, and longevity of PV modules.

Solar Frame Bonding

Double-sided PE foam tape is a cornerstone for achieving high-quality, reliable adhesion in solar module frames. Its PE foam substrate offers an ideal combination of flexibility and internal strength, while the optimized acrylic adhesive ensures secure bonding to most backsheet materials. The application process is straightforward and efficient, enhancing production workflows.
Recommended Tape: PE Foam Tape
●Key Benefits:
oSecure, stable frame attachment
oNo edge lifting, reducing downtime or rework
oUV resistance, water resistance, and weather durability

Fixing Back Supports of Solar Modules

For securing back supports, concentrators, and solar reflectors, black PE foam tape offers a permanent, reliable solution without requiring curing time. Its ease of use accelerates installation while maintaining a clean work environment.
Recommended Tape: Black PE Foam Tape
Key Benefits:
oNeat, efficient application
oFast bonding without drying or curing
oEnhanced production efficiency and reliability
Permanent Edge Protection
Frameless PV modules with glass backsheets are visually appealing but vulnerable to edge damage during production, transportation, and installation. Edge protection tape not only enhances the aesthetic appeal of frameless modules but also significantly reduces breakage rates by sealing edges to prevent water ingress or delamination.
Recommended Tape: Matte Black Single-Sided Tape (PET Tape)
Key Benefits:
oProtective sealing and durability
oWater resistance and reduced breakage

Fixing and Aligning Solar Cells

During the lamination process, solar cells must remain securely positioned, and wire harnesses should be neatly aligned. PET tape is ideal for this purpose as it provides excellent UV resistance and anti-aging properties, critical for long-term reliability.
Recommended Tape: PET Tape
Key Benefits:
oMaintains cell alignment during lamination
oFixes and insulates solar ribbons in thin-film modules

Organizing Junction Box Wires

Loose wiring at the back of PV modules poses risks to product quality and installation safety. MOPP tape provides superior instant adhesion for securely fastening wire harnesses to various backsheet materials. Even after extended overseas transport, it remains easy to remove without leaving residue.
●Recommended Tape: MOPP Tape
●Key Benefits:
oSecure wire management
oClean removal with no adhesive residue

Mounting Junction Boxes

Using PE foam tape for immediate bonding during junction box installation improves both safety and adhesion quality. This eliminates issues caused by silicone sealants, such as displacement during curing or incomplete bonding. The foam tape also offers UV resistance and a visually clean, even finish.
Recommended Tape: PE Foam Tape
Key Benefits:
oImproved safety and adhesion quality
oWeather durability and aesthetic finish
Fixing and Insulating Busbars
In thin-film PV modules, busbars traverse the cell area and require secure insulation. Double-sided PET insulating tape is the perfect solution, offering strong adhesion to coated glass while providing reliable insulation.
Recommended Tape: PET Insulating Tape
Key Benefits:
oFixes busbars securely
oEnsures electrical insulation

Shielding Conductive Leads

Conductive leads in PV modules require shielding on the sunlight-exposed side. Single-sided PET tape is excellent for permanently covering metal leads, ensuring a clean appearance and robust electrical insulation. These tapes are highly resistant to temperature changes, UV exposure, and environmental factors, making them ideal for permanent use.
Recommended Tape: PET Light-Blocking Tape
Key Benefits:
oSuperior light-blocking and insulation properties
oExcellent peel strength and resistance to environmental degradation
oRemovability from plastic and metal surfaces

Temporary Hole Sealing

During lamination, adhesive tape is essential for fixing leads and temporarily sealing holes or cracks in the backsheet. PET light-blocking tape provides high adhesion, heat resistance, and easy removability, making it versatile for various backsheet materials.
●Recommended Tape: PET Light-Blocking Tape
●Key Benefits:
oHigh adhesive strength
oHeat resistance and clean removal
oBroad compatibility with different backsheet materials

Conclusion

Adhesive tapes are indispensable in the solar photovoltaic industry, providing efficient, reliable, and long-lasting solutions for module assembly and protection. Whether for bonding frames, protecting edges, or managing electrical components, each tape type offers specific advantages tailored to the demands of modern PV module production. By integrating advanced adhesive technologies, manufacturers can ensure the durability, performance, and safety of solar modules in even the most challenging environments.