How to avoid bubbles in solar high temperature adhesive tape during construction?

In the construction process, in order to avoid bubbles in the solar high-temperature adhesive tape, corresponding measures can be taken from the aspects of preparation before construction, pasting operation and subsequent treatment, as follows:

Preparation before construction

Make sure the surface is clean and dry: impurities and moisture on the pasted surface are the important reasons for bubbles. It is necessary to thoroughly remove the dust, oil stain and water stain on the surface with a clean cloth or a special cleaner, and dry it with a dry cloth. For stains that are difficult to clean, organic solvents such as alcohol and acetone can be used to wipe them to ensure that the surface is spotless and completely dry, which provides a good foundation for tape sticking.

Selection of suitable adhesive tape: according to the specific requirements of construction environment and solar equipment, select solar high-temperature adhesive tape with qualified quality and suitable performance. The viscosity and flexibility of high-quality adhesive tape are more stable, which can effectively reduce the possibility of air bubbles. At the same time, we should pay attention to the shelf life and storage conditions of the tape, and avoid using expired or improperly stored tape.

Keep the construction environment suitable: the temperature and humidity of the construction environment have great influence on the adhesive tape sticking effect. Generally speaking, the temperature should be controlled at 10℃-35℃ and the relative humidity should be below 60%. The temperature is too low, the adhesive tape is not sticky enough, and it is difficult to fully adhere to the surface; If the temperature is too high, the adhesive tape may be too soft and prone to wrinkles and bubbles. If the humidity is too high, water vapor will condense on the surface, resulting in bubbles.

Paste operation process

Correctly uncover the adhesive tape: When uncovering the release paper or protective film of the adhesive tape, the speed should be moderate and even to avoid being too fast or too slow. Too fast may make the adhesive tape contact with the air quickly, and get involved in the air to form bubbles; If it is too slow, it may cause the adhesive tape to adhere to some surfaces in advance, resulting in uneven adhesion and easy generation of bubbles.

Sticking from one end: align one end of the adhesive tape accurately with the sticking position, then stick it to the other end slowly and steadily, and gently press the two sides from the center of the adhesive tape with tools such as scraper or roller while sticking, so that the adhesive tape is closely attached to the surface to be stuck, and the air is gradually squeezed out. For a long or large area of adhesive tape, it can be operated in sections, and each section must be fully attached before proceeding to the next section.

Avoid stretching the adhesive tape: Do not overstretch the adhesive tape during the pasting process, because the stretched adhesive tape may have gaps when it recovers its elasticity, thus allowing air to enter and form bubbles. The adhesive tape should be attached to the surface naturally, and only appropriate pressure should be applied to make it stick firmly.

Post-paste treatment

Re-inspection and compaction: After pasting, re-inspect the surface of the tape to see if there are any missing bubbles. For smaller bubbles, it can be lightly compacted again with scraper or roller to squeeze out the bubbles; For larger bubbles, sharp tools such as needles or blades can be used to puncture the edge of the bubbles, and then tools can be used to compact and exhaust air.

Curing by standing: After pasting, let the adhesive tape stand in the natural environment for a period of time to make it fully cured and stable. In the curing process, it is necessary to avoid touching, moving or other interference with the adhesive tape, ensure that the adhesive tape can be firmly bonded to the surface without being affected by external forces, and reduce the possibility of bubble generation again.