VT-42C CCL/Laminate VT-42C PP/Prepreg

UL Approval: E214381 Version: Rev. B2 28/06/2018 /97

Storage Condition & Shelf Life

Precautions In Handling

  • The prepreg exceeding shelf time should be retested.
  • Take care in handling thin core laminates as they are easily damaged.
  • If the pre-preg is not consumed within 48hrs after opening the vacuum package, it is recommended that the bags be resealed.
  • Material is available in both long and short grain. The grain direction is indicated on the label with an arrow.


Designing And Inner Layer Process

  • Please be careful when single ply of 1080, 1086, 1078 or 106 prepreg is designed to the dielectric layer.
  • Dimension stability is the same as Standard FR4 material.
  • Please check with your oxide vendor to make sure that our material is suitable with your oxide process. We recommend to control the peel strength with brown oxide copper over 2 Lb/in.
  • For unclad or single sided laminates to be used in multilayer, please brush unclad sides before use.


Press Condition

1. Heating rate(Rise of Rate) of material [Material Temperature]
Programmable Press: 1.5-3.0℃/min (3~5℉/min).  Manual Press:3~6℃ /min (5~10℉/min)

2. Curing Temperature & Time: >50min at more than 170℃ (338℉) [Material Temperature]

3. Full Pressure: ≥280psi (20Kgf)

4. Vacuuming should be continued until over 140℃ (284℉) [Material Temperature]  

5. Cold Press condition: Keep Plate @ Room Temperature by water, Pressure:100psi, Keep Time: 60minutes

hot-start-cycle-vt-42.jpg hot-start-cycle-vt-42-manual.jpg adara-cedal-press-cycle-vt-42.jpg

Typical Drilling Parameters (φ0.3-1.0 mm)

Desmearing Process

Standard FR4 Desmear Process.

Downloads for VT-42C