Volkswagen Golf Service & Repair Manual: Matting additive -ALN 775 106-
| Matting additive -ALN 775 106- |
| The matting additive -ALN 775 106- is an additive for 2-pack
HS top coats which produces a matt effect on painted plastic
parts. |
| Hardened, well-preserved and lightly sanded old or factory
finish. |
| Plastic parts coated with primer or surfacer. |
 Note
| For plastic parts, see "The VW/Audi painting system for
plastic parts" (data sheet no. 5.74). |
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Thoroughly clean with silicone remover -LVM 020 000 A5- or
slow-drying silicone remover -LVM 020 100 A5-. |
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Before recoating, use a suitable cleaning agent to ensure a
clean surface free of residues. |
| 2-pack VHS hardener -LHA 009 051 A2-/-LVM 009 051 A5- |
| 2-pack VHS hardener, slow-drying -LHA 009 052 A2-/-LHA 009
052 A3- |
| 2-pack VHS hardener, extra slow-drying -LHA 009 053 A2- |
| See technical data sheet for 2-pack VHS hardener
→ Chapter |
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Mixing ratio (in % by weight) |
Gloss units
(GU) as per DIN 67530 |
| Matting
additive -ALN 775 106- |
2-pack HS
top coat |
60° angle |
| 10 |
90 |
85-95 GU* |
| 20 |
80 |
80-90 GU* |
| 30 |
70 |
75-90 GU* |
| 40 |
60 |
60-90 GU* |
| 50 |
50 |
25-65 GU* |
|
* Depending on colour. Lose of gloss when the matting additive -ALN 775
106- is added is more characteristic for light colours then for dark
ones. The gloss degree produced also depends on other factors (see
"Factors influencing the degree of gloss"). |
| Cross-linking of matting mixture: |
| Mixing ratio: 4:1 by volume with |
| 2-pack VHS hardener -LHA 009 051 A2-/-LVM 009 051 A5- (for
small to medium-size areas at moderate temperatures) |
| 2-pack VHS hardener, slow-drying -LHA 009 052 A2-/-LHA 009
052 A3- (for larger areas at moderate temperatures) |
| 2-pack VHS hardener, extra slow-drying -LHA 009 053 A2- (for
large areas at high temperatures) |
| See technical data sheet for 2-pack VHS hardener
→ Chapter |
| 2-pack thinner -LVE 009 001 A5- |
| 2-pack thinner, special -LVM 009 200 A2/A5- |
| 2-pack thinner, slow-drying -LVM 009 300 A2- |
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| Application time/pot life: |
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Mixed for spraying, 60 to 90 minutes at +20°C |
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| Method of application: “spray”. |
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Application viscosity for +20 °C material temperature. |
| Application viscosity “compliant” and “HVLP”: |
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Add 15 % thinner at +20 °C material temperature. |
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Adjust spray nozzle following manufacturer's instructions to
1.3-1.4 mm for “compliancy”. |
| – |
Adjust spray nozzle following manufacturer's instructions to
1.3-1.4 mm for “HVLP”. |
| – |
Adjust spray pressure following manufacturer's instructions
to 2.0-2.5 bar for “compliancy”. |
| – |
Adjust atomising pressure following manufacturer's
instructions to 0.7 bar for “HVLP”. |
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Two spray passes (with intermediate flash-off time) are
necessary to achieve the recommended dry-film thickness of
50-60 µm. |
Note
| It is not necessary to add the elastic additive -ALZ 011
001-. |
| The matting additive -ALN 775 106- is not suitable for
matting clear coats. |
| The matting additive -ALN 775 106- is thixotropic and
becomes liquid when stirred well. Shake the can well by hand, or
use a shaker, if possible. The material should also be stirred
in the mixing unit for 15 minutes before use. |
| Adding the matting additive might influence the coverage. |
| The actual gloss level achieved is influenced by a number of
factors apart from differences relating to the colour shade. The
following chart shows some additional parameters and their
effects on the degree of gloss. |
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| Higher gloss |
Low gloss |
| Slower-drying hardeners |
Faster-drying hardeners |
| Slower-drying thinners |
Faster-drying thinners |
| Higher application
viscosity |
Lower application viscosity |
| Higher dry layer
thickness |
Lower dry layer thickness |
| Shorter flash-off time |
Longer flash-off time |
| Forced drying |
Air drying |
| Factors influencing the degree of gloss: |
| The actual gloss level produced depends on the
hardener/thinner used, the application and the drying method as
well as on the film thickness. Depending on the respective
parameter, the gloss level may vary by up to 20 %. |
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| Air drying at +20 °C ambient temperature: |
| Dust dry in 30-50 minutes |
| Dry for assembly in 5-6 hours |
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| Final flash-off time with force drying is at least
5-10 minutes. |
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| Force drying at +60 °C material temperature in
30-40 minutes. |
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| Final flash-off time with infrared drying is at least
5-10 minutes. |
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| Infrared drying with short-wave radiant heater: 5 minutes at
50% power and 10 minutes at 100% power. |
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| Personal protective equipment: |
| Adhere to the safety data sheet. |
| Wear personal protective equipment during application. |
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| Viscosity as supplied |
pastos |
| Flash point: |
Above +23 °C |
| VOC content:
2004/42/IIB(e)(840)600 |
The EU limit value for this
product (product category IIB.e) in ready-to-spray form is max. 840 g/l
of volatile organic compounds. The VOC content of this product in
ready-to-spray form is max. 600 g/l. |
| The guaranteed shelf life is 48 months from date of
production. May be used until the date stated on the label at
latest if stored in sealed original containers at +20 °C. |
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Matting additive -LVM 769 810 A2