Description

SQ-730004  single-component UV adhesive is mainly used for composite bonding between films and sheets such as PET, PP, BOPP, PC, PVC, leather, paper, etc. The product has the characteristics of low viscosity, strong adhesion, high fastness, high transparency and good weather resistance. It can be used for composite bonding of materials in electronic components, toys, handicrafts, gifts, mobile phone sheaths, furniture panels, various packaging materials, various new materials and other fields.

Technical Data

Product Features

Provides strong adhesion and reliable bonding between PET, PP, BOPP, PC, PVC, leather, paper, and other film or sheet substrates.

Achieves initial positioning within 1 second, with full cure in 10–20 seconds, enabling high-efficiency production.

Exhibits excellent transparency with strong resistance to yellowing under UV exposure or long-term use.

Low volume shrinkage

Performs reliably under high/low temperatures, high humidity, and moisture exposure, with strong UV resistance.

Maintains stable adhesive performance even in harsh environmental conditions.

Applications

This adhesive is widely used for bonding and sealing components in mobile phones, laptops, household appliances, electronic modules, toys, handicrafts, gifts, and protective phone cases.

It provides excellent adhesion between metal, glass, fiber-based materials, and rigid plastics, delivering strong and durable bonding performance.

The product is particularly suitable for assembly and fixing applications in electronic devices that require high precision and reliable structural integrity.

Application Process

1. Ensure that at least one of the two substrates to be bonded is transparent, clean, dry, and free of grease.

2. Apply the UV adhesive to the surface of one substrate. Align and press the two substrates together using appropriate tools to ensure good contact and bubble-free bonding. Application can be done manually or with an automated dispensing machine.

3. Expose the assembly to a UV lamp with a wavelength of 265 nm or 395 nm. Illuminate from the center toward the edges, ensuring that the UV light fully penetrates the bonding area. Recommended initial exposure time is approximately 6 seconds. After preliminary positioning, remove any excess adhesive on the substrates and re-illuminate until fully cured. The curing time may vary depending on the substrates, adhesive thickness, and UV intensity. It is recommended to use a UV intensity meter to verify light strength prior to bonding to minimize waste.

4. Ambient temperature can slightly affect adhesive reactivity. In lower temperatures, curing time should be appropriately extended. Avoid applying excessive pressure or repeated friction on the substrates during operation, and it is recommended to use fixtures for proper alignment.

Process Flow

Apply adhesive onto the cleaned substrate → Mold rolling → UV curing → Setting the shape, removing residual glue → UV curing to improve performance

Precautions

1. Ensure that the UV adhesive layer receives sufficient UV energy to achieve complete curing; inadequate irradiation may compromise the coating performance.

2. Do not pour leftover adhesive back into the original container. Store the remaining material in a sealed, light-proof condition at room temperature.

Storage Conditions

To prevent premature polymerization due to the high reactivity of this product, keep it tightly sealed and store away from heat sources and direct sunlight. It is recommended to maintain storage temperature below 30 °C. Unused product should be promptly resealed and must not be left open. Under ventilated conditions at 25 °C, the product has a safe storage period of 6 months. Available packaging: 1 kg / 5kg / 25 kg per drum

Tips: SQ-730004 Laminating Adhesive, specially designed for lamination of PET, PP, BOPP, PC, PVC, leather, paper and other materials. Fast curing, strong adhesion, high bonding strength, high transparency, and good weather resistance.

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Note: Technical data represents typical values only. In view of the differences in formulas, production process, conditions, all the above statements must be adjusted according to the actual situation, our company does not make any promises. Our company reserves the right to reform its products without prior notice of any changes.