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General information, paint

Matting additive -ALN 775 106-

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Designation:

Matting additive -ALN 775 106-

Issued 04.2013

Product description

The matting additive -ALN 775 106- is an additive for 2-pack HS top coats which produces a matt effect on painted plastic parts.

Technical data sheet

Substrate

Suitable substrates:

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).

Substrate pre-treatment:

  • Thoroughly clean with silicone remover -LVM 020 000 A5- or slow-drying silicone remover -LVM 020 100 A5-.
Matting additive -ALN 775 106-
  • Then lightly sand.
Matting additive -ALN 775 106-
  • Before recoating, use a suitable cleaning agent to ensure a clean surface free of residues.

Application

Suitable for:

2-pack HS top coat

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

Matting table:
Matting additive -ALN 775 106-
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").

Mixing ratio

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

Thinner:

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-
Matting additive -ALN 775 106-

Application time/pot life:

  • Mixed for spraying, 60 to 90 minutes at +20 °C
Matting additive -ALN 775 106-

Method of application: “spray”.
Matting additive -ALN 775 106-
  • Application viscosity for +20 °C material temperature.

Application viscosity “compliant” and “HVLP”:

18-20 seconds
Matting additive -ALN 775 106-
  • Add 15 % thinner at +20 °C material temperature.
Matting additive -ALN 775 106-
  • 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”.
Matting additive -ALN 775 106-
  • 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.
Matting additive -ALN 775 106-
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 %.

Drying

Air drying at +20 °C ambient temperature:

Dust dry in 30-50 minutes

Dry for assembly in 5-6 hours

Dry overnight
Matting additive -ALN 775 106-

Final flash-off time with force drying is at least 5-10 minutes.
Matting additive -ALN 775 106-

Force drying at +60 °C material temperature in 30-40 minutes.

 P00-10027

Final flash-off time with infrared drying is at least 5-10 minutes.
Matting additive -ALN 775 106-
Infrared drying with short-wave radiant heater: 5 minutes at 50% power and 10 minutes at 100% power.
Matting additive -ALN 775 106-

Personal protective equipment:

Adhere to the safety data sheet.

Wear personal protective equipment during application.

Data
Matting additive -ALN 775 106-
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.

Storage

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.
Matting additive -ALN 775 106-

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