Customer groups: Avary Holding, Flexium Interconnect (Kunshan), AAC, NETRON, Career, Uniflex Technology (Jiangsu), Uniflex, Dayinmao, AKM Meadville, etc.
HSTR (PBT) is a three-layer co-extrusion technology with high R&D difficulty, high cost, stable quality, and no silicone oil.
The performance is close to TPX.
HSTR-190 series release film technical parameters
1. Product features
This product is suitable for use in high-speed laminating operations on FPC boards.
After laminating, the board surface is flat, wrinkle-free, with no residual glue and no pollution.
After laminating, it is easy to peel off, and the CVL glue has a good flow effect.
2. Materials and results
This product is made of special high-temperature resistant poly 4-methylpentene-1 monomer copolymer, polybutylene terephthalate, and other materials for casting.
It has good heat resistance, low shrinkage, and good use effect.
It meets ROHS requirements and is a green product; it does not contain Silicone and will not cause reliability problems to the product.

3. Product characteristics
Appearance-white (visual inspection)
Thickness-190um±10um (vernier caliper)
Roughness - Smooth surface S/S ≦0.8um, matte surface M/S ≦3.2um (roughness meter)
Tensile strength - MD 51MPa, TD 49 MPa (JIS K7127)
Tear strength - MD 110Kn/m, TD 109Kn/m (JIS K7128-3)
Dimensional thermal change rate - MD ±0.02, TD ±0.07 (180°C, 3 minutes)
Melting point - 223℃ (JIS K7121)
Density - 1.33g/cm²
4. Recommended laminating parameters
High speed lamination 180±10℃, pressure 120±40KG/CM², preheating 0-15 seconds, molding 100-360 seconds
Vacuum machine 180±10℃, pressure 20±5KG/CM², Preheating 0-15 seconds, molding 100-360 seconds
5. Storage conditions
Optimal storage conditions: 5-30℃
Avoid direct sunlight, low temperature (below 0℃), high temperature (above 40℃), high humidity (above 70%RH)
Storage period: 12 months from the date of production

