Products & Solutions

Removable protective film LIOELM™ LE501

Removable protective film LIOELM™ LE501
This protective film uses a special polyurethane pressure sensitive adhesives and has excellent reworkability and air release properties. Excellent transparency due to the use of highly transparent PET. It can be used as an alternative to silicone-based protective films for surface protection of touch panel products, process protection, etc.

Characteristics

Excellent Bonding Performance

Specially designed urethane pressure sensitive adhesives achieves bonding performance equivalent to silicone pressure sensitive adhesives.

Bonding performance test

*Place the center of the sample in close contact with the glass plate and measure the time until the tape comes into close contact with its own weight.
Compared to conventional products, LE501 has superior wettability, adhesion in a short time and excellent air release properties.

Unit LE501 Conventional product (urethane type) Silicon-based
Bonding characteristics *1 sec 1.0 2.2 0.9
Air release property *2 -
Reworkability -

*1 The time it takes for a tape cut out to a size of 25 x 100 mm to adhere to a glass plate.
*2 When air bubbles are drawn in, whether or not the generated air bubbles can be pushed out with fingers, and the workability.

Product structure

LE501 product configuration

Product Data

Unit Performance Test condition
Tape thickness μm 50
Adhesive force VS. SUS gf/25mm 1.5 JIS Z1528
20 minutes after application
VS. Glass 1.1
VS. PET 1.2
VS. PC 3.2
Holding power 80℃ mm 0 JIS K1528
Total light transmittance % 91 JIS K7361
HAZE - 1.4 JIS K7136
Surface resistance value Ω/□ 3.8E+10 JIS K6911

Notes in Use

  1. Clean the adherend (Remove dust, any other foreign particles, water, and oil.)
  2. Make sure that the adherend is free of burrs and warpage.
  3. Apply the tape to the adherend at a temperature of around 20 degrees centigrade wherever possible.
  4. After applying the tape, press firmly.
  5. Be sure to conduct a test before using the tape to check that the tape is suited for the application.
  • These tapes are for industrial use only. Do not use them for the following applications.
    ・Applications that involve or may involve the direct attachment of the tape to the skin.
    ・Applications that involve the direct attachment of the tape to food.

Notes on strage

  1. Store the product in a room away from sunlight. Keep it away from high temperatures and humidity. (The desirable temperature is 5 to 40 degrees centigrade, and the desirable humidity is 60% or lower.)
  2. Avoid placing the product directly on the ground or floor. Place it on a table that allows air to pass through.
  3. When storing tapes in a stack, be sure to insert a removable material, such as inserting paper, between the tapes and stack them vertically.

Featured Products

Inquiries

TOYOCHEM CO., LTD. Information and Communication Materials Sales Division

TOYOCHEM CO., LTD.