Alsa’s formable CHROME LAMINATE is a thermoplastic, interior and exterior Chromium film bonded to a thermoformable ABS backing sheet. This product was originally designed and used to take the place of chrome plating on plastic automotive trim parts. Designed to be used in low stretch applications —the distinctiveness of the image will be reduced on parts where stretch levels are higher than 50%--therefore, not recommended.
Handling and storage recommendations:
CHROME products should be treated with care and stored on pallets. The material should be wrapped accordingly so to prevent moisture absorption and not stored in places with high humidity or extreme temperatures. Temps below 0˚C (32˚F) and over 35˚C (95˚F) should be avoided.
If materials are stored under high humidity conditions (above 80%) for extended periods, pre-drying may be required to guarantee optimal quality after processed. Dry for approximately 24-48 hours in a circulation oven at 60˚C (140˚F).
To avoid surface damaging, see the following recommendations:
- Do not stack, use soft tissue or cloth between each part
- Wear soft or latex gloves
- Avoid sharp objects
- Avoid dirt, dust and contamination using anti-static devices designed for clean room atmospheres
Processing recommendations:
No special equipment is necessary. Protective carrier is to be removed from sheet prior to VacuumForming. Existing thermoforming and molding equipment can be used—however, molds should be made or modified to accept film in the cavity. Robotic laser trimming/cutting with hydromechanical die-trimming press is recommended or accomplished through in-line with the thermoforming process or following.
Thermoform process conditions:
- Heaters off, no direct heat to the film side
- Ideal laminate temp (ABS side) 140˚C-170˚C (285˚F-360˚F)
- Vaccuum mold temp 35˚C-40˚C (95˚F-105˚F)
Troubleshooting:
- Surface blushing, rainbow iridescence look
Laminate surface temperature is too high--Decrease temperature or check to verify that there is no top heat on laminate side.
- Blistering on laminate surface
Laminate surface may be too hot. ABS may have absorbed moisture—dry if necessary.
- Surface dulls, black appearance or low distinctiveness of image
Material may be over stretched. Check part or mold design. |
