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THERMOFORMABLE BRIGHT FILM FOR EITHER IMD OR FORMING ONLY

Alsa Bright Film is the only IMD film that is OEM exterior approved

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DESCRIPTION:

Alsa bright film is a thermoplastic, interior/exterior film laminate product used to replace chrome plating on plastic trim parts. Alsa bright film consists of a fluoropolymer-based clearcoat, a metal layer, and an adhesive layer, bonded to a thermoformable ABS backing sheet. Alsa bright film is designed to be used in low stretch applications, and therefore DOI (distinctness of image) reduction may occur on parts with stretch levels higher than 50%. Any color chrome available; blue, black, red, etc.

 

TYPICAL PROPERTIES:

Alsa bright film is currently supplied with a 17 mil (0.425mm) ABS backing sheet. This backing sheet is an extruded, high quality ABS film, compatible with ABS, ABS blends and PC/ABS injection molding resins. Shrinkage rates of the ABS may vary, depending upon part, geometry, thermoforming conditions, and the temperature of the thermoform mold. Typical shrinkage for 17 mil (0.425mm) ABS is 0.6-0.9% (Please inquire about thicker sheet ABS backing).

 

TEST DATA:

Description

Test Method *

Results

Fla. 1 year

BI 160-01

Pass

Ariz. 1 year

BI 160-01

Pass

Xenon (l000kj)

BO 101-01

Pass

Salt spray resistance

ESB-M5P10-A 3.5.6

Pass

Flexibility at 23°+/- 2C°

ESB-M5P10-A 3.7

Pass

Topcoat stability

ESB-M5P10-A 3.9

Pass

Water resistance

ESB-M5P10-A 3.10.2

Pass

Humidity

ESB-M5P10-A 3.10.3

Pass

Cleaners & wax resistance

ESB-M5P10-A 3.10.4

Pass

Water spot & soap

ESB-M5P10-A 3.10.5

Pass

Gasoline Resistance

ESB-M5P10-A 3.10.6

Pass

Oil Resistance

ESB-M5P10-A 3.10.7

Pass

                            *All testing performed at 40% stretch level.

 

HANDLING AND STORAGE:

§            All Alsa bright film products should be handled with care and stored on pallets during transport and handling to assure the packaging integrity.

§            Boxes containing rolls of Alsa bright film should be stored in the original packaging to prevent contamination. The material should not be removed from the moisture-proof wrap until you are ready to process it. Any unused portion should be re-wrapped to prevent moisture absorption in the ABS. If stored in a vertical position, rolls should be filly supported on a flat surface.

§            This material should not be stored in places of high humidity or extreme temperatures. Temperatures below 0°C (32°F) and over 35°C (95°F) should be avoided.

§            Materials stored under high humidity conditions (>80%) for extended periods, can absorb moisture. Pre-drying may be required to guarantee optimal quality after processing (see below).

 

ABS is hygroscopic, therefore, is sensitive to moisture absorption. If drying is necessary, dry for approx. 24-48hrs. in a circulation oven

@ 60°C (140°F)

 APPLIQUE HANDLING

Once a laminate is formed and trimmed, one must take care that the applique is not damaged or the surface is not contaminated with dust, dirt or trimming scraps.

 To avoid surface damage the following is recommended:

§            Do not stack appliques on top of each other (‘nest’) without soft tissue or cloth over each part.

§            Have all personnel wear soft or latex gloves.

§            Avoid all sharp objects in the room and on clothing where appliques are handled (watches, buckles etc.)

§            Avoid dust pick-up or contamination, with the use of antistatic devices specifically designed for clean room atmospheres.

 PROCESSING:

No special equipment is necessary when processing Alsa bright film. Existing thermoforming and molding equipment can be used; however, molds should be made or modified to accept the film in the cavity. Trimming of the applique (preform) can be accomplished in-line with the thermoforming process or in a separate operation following the thermoforming step. Robotic laser trimming or cutting with a mechanical or hydro-mechanical die-trimming press is recommended. MSD sheet is available upon request.

 

THERMOFORM PROCESSING CONDITIONS:

Top heat or reflective bright side of film

Heaters off (no direct heat)

Ideal laminate temperature (ABS side)

140° C – 170° C / 285° F - 340° F

Vacuum mold temperature

35° C - 40° C / 95° F - 105° F

 

INJECTION MOLDING CONDITIONS:

Film side of mold

35° C - 40° C / 95° F - 105° F

Non- film side of mold

As recommended by the resin supplier

 

TROUBLESHOOTING:

Description

Cause / Correction

Surface blushing, iridescence or rainbow look

Laminate surface temp. too high.

 -decrease temp or check to verify no top heat on laminate side

Laminate dwell time may be too long

 -reduce length of time in oven.

Blistering on laminate surface

Laminate surface may be too hot.

ABS may have absorbed moisture – dry ABS if necessary

Surface dulling, black appearance or low DOI (Distinctness of Image)

Material may be overstretched. Check part/mold design.

For more information on processing ABS products, please refer to the Alsa Technical Processing Guide”.

 The information contained within this document is considered recommended guidelines only, to familiarize our customer with the aforementioned product. Alsa Corporation and its subsidiaries make no guarantees of results and assume no obligations or liability in connection with its advice. This publication is not to be taken as a license to operate under, or recommendation to infringe any patents.