What is foam die-cutting?

1. Application Trend of VHB Foam Die-cutting

9759彩票集团In 2018, on the eve of 5G, the mobile phone supply chain launched a series of new products tailored to the signal transmission requirements of 5G communication.

9759彩票集团2. Given the fragile nature of glass cover plates, enhancing their drop resistance and explosion-proof performance has become a top priority.

3. The use of VHB foam adhesive for mobile phone back covers is emerging as a trend. Currently, brands such as Huawei, Moto, Meizu, Xiaomi, and ASUS are already utilizing it for applications like front covers, back covers, and fingerprint modules of mobile phones

9759彩票集团4. "Currently, the cost of the glass back cover of a mobile phone priced between 1000-2999 yuan is at least 28-3

5 yuan. If the reworkability of VHB foam adhesive is poor, it will be scrapped." This is also the reason why the price of VHB foam adhesive with good reworkability remains high internationally.

6. According to reports, the main advantages of VHB foam adhesive are its strong adhesion, good reworkability, waterproofing, dustproofing, shock resistance, and excellent die-cutting performance

7. It can also meet the requirements of whole machine drop test, pull test, and roller test. Currently, it has passed Huawei's 50N pull test and has been applied in multiple mobile phone back cover projects.

9759彩票集团II. What is foam double-sided tape?

9759彩票集团1. Product introduction

2. Foam double-sided tape refers to a type of double-

sided tape made by applying a strong acrylic adhesive on both sides of a foam substrate, and then covering one side with release paper or release film. If both sides are covered with release paper or release film, it is called sandwich double-sided tape. The main purpose of making sandwich double-sided tape is to facilitate the die-cutting of double-sided tape.

3. Double-sided foam tape possesses characteristics such as strong adhesive force, excellent retention, good waterproof performance, strong temperature resistance, and strong UV resistance.

4. The foam base materials are divided into: EVA foam, PE foam, PU foam, acrylic foam, and high-foam. The adhesive types are divided into: oil adhesive, hot-melt adhesive, rubber, and acrylic gel die-cutting adhesive.

III. Acrylic foam double-sided adhesive

1. Acrylic foam double-sided tape refers to a double-sided tape made by applying acrylic adhesive on both sides of an acrylic foam substrate. The colors available include white, gray, transparent, and black, and there are various thicknesses, mainly including 0.25mm, 0.4mm, 0.5mm, 0.64mm, 0.8mm, 1.2mm, 1.6mm, 2.0mm, and 3.0mm. The release liner comes in white release paper and red release film.

9759彩票集团2. It possesses advantages such as high adhesion, high retention, waterproofing, temperature resistance, and strong load-bearing capacity, making it the best among all foam materials. It can be used for bonding and fixing in applications such as anti-scratch strips, pedals, sun visors, sealing strips, bumper strips, rear fenders, nameplate decorative strips, door peripheral protection strips, glass curtain walls, and metal products. The applicable temperature range is -20℃ to 120℃.

9759彩票集团IV. Application Fields of Protective Film Die-cutting

9759彩票集团1. Electronic market: mobile phones, computers, digital cameras, mechanical panels, membrane switches, etc;

2. Automotive market: exterior decorative strips, automotive parts, car logos, perfume, etc;

3. Home furnishing market: application of hooks, furniture, toys, crafts, window gaps, and door gaps.