VW Golf manuals

Volkswagen Golf Service & Repair Manual: Setting the gloss level of HS clear coats and HS top coats

Issued 04.2013
The gloss level of HS clear coats and HS top coats is set by mixing them with matting additive -LVM 769 810 A2- for plastic and metal substrates.
The information on the factors that influence gloss level contained in these instructions is intended to assist the technician in obtaining the desired gloss level, even under varying working conditions.
Area of application
  For small and add-on parts
Usable products
  Matting additive -LVM 769 810 A2-
  2-pack HS clear coat -L2K 769 500 A5-
  2-pack HS Brillant plus clear coat -LZK 769 K05 A5-
  2-pack HS Vario clear coat -L2K 769 K01 A2-
  2-pack HS Performance clear coat -LZK K06 A5-
  2-pack HS Optimum Plus clear coat -LZK 769 K07 A5-
  2-pack HS mixture paint/top coat -L2K 074/073 ...-
  2-pack HS hardener, slow-drying -LHA 009 047 A3-
  2-pack HS hardener, extra slow-drying -LHA 009 048 A3-
  2K slow-drying VHS hardener -LHA 009 052...-
  2-pack VHS hardener, extra slow-drying -LHA 009 053 A2-
  2-pack thinner -LVE 009 001 A5-
  2-pack thinner, special -LVM 009 200 ...-
  2-pack thinner, slow-drying -LVM 009 300 A2-
  Clear coat additive -LVM 007 000 A2-
Gloss setting/matting
Refer to system information → Chapter „Repair paintwork system for matt-finished vehicles“.
Refer to technical data sheet → Chapter „Matting additive -LVM 769 810 A2-“.
The actual gloss level achieved is influenced by a number of factors apart from differences relating to the colour shade.
While other hardeners or thinners not described in this data sheet may also be used, they may result in different gloss levels (up to 20%) in the same way as different application types, drying conditions and layer thicknesses do.
   
Higher gloss Low gloss
Faster-drying hardener Slow-drying hardener
Faster-drying thinners Slower-drying thinners
Higher application viscosity Higher application viscosity
Higher dry layer thickness Lower dry layer thickness
Shorter flash-off time Longer flash-off time
Forced drying Air drying
 
  Note
It is absolutely necessary to use spray samples prior to application in order to achieve the gloss level that matches the vehicle. Measuring the gloss level (at an angle of 60°) on adjacent components may also be helpful.
Mixture table for 2-pack HS clear coats
Gloss levels
   
  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 73 g 65 g 59 g 56 g
2-pack HS clear coat -L2K 769 500- 27 g 35 g 41 g 44 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with HS hardener
–  After the clear coat has been mixed with matting additive -LVM 769 810-, the mixture must be mixed with HS hardener at a ratio of 2:1. Ready to spray without the addition of thinner.
Gloss levels
 

Setting the gloss level of HS clear coats and HS top coats

  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 68 g 59 g 54 g 52 g
2-pack HS clear coat -L2K 769 500- 32 g 41 g 46 g 48 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with VHS hardener
–  After the clear coat has been mixed with matting additive -LVM 769 810-, the mixture must be mixed with VHS hardener at a ratio of 4:1. Ready to spray after the addition of 15 % thinner.
Gloss levels
 

Setting the gloss level of HS clear coats and HS top coats

  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 72 g 66 g 59 g 53 g
2-pack HS Brilliant plus clear coat -L2K 769 K05- 28 g 34 g 41 g 47 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with VHS hardener
–  After the clear coat has been mixed with matting additive -LVM 769 810-, the mixture must be mixed with VHS hardener at a ratio of 4:1. Ready to spray after the addition of 5% clear coat additive -LVM 007 000 A2-.
Gloss levels
 

Setting the gloss level of HS clear coats and HS top coats

  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 70 g 61 g 56 g 51 g
2-pack HS Vario clear coat -L2K 769 K01- 30 g 39 g 44 g 49 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with HS hardener
–  After the clear coat has been mixed with matting additive -LVM 769 810-, the mixture must be mixed with HS hardener at a ratio of 2:1. Ready to spray without the addition of thinner.
Gloss levels
 

Setting the gloss level of HS clear coats and HS top coats

  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 68 g 60 g 55 g 51 g
2-pack HS Vario clear coat -L2K 769 K01- 32 g 40 g 45 g 49 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with VHS hardener
–  After the clear coat has been mixed with matting additive -LVM 769 810-, the mixture must be mixed with VHS hardener at a ratio of 4:1. Ready to spray after the addition of 15 % thinner.
Gloss levels
 

Setting the gloss level of HS clear coats and HS top coats

  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 71 g 64 g 52 g 44 g
2-pack HS Performance clear coat -L2K 769 K06- 29 g 36 g 48 g 56 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with VHS hardener
–  After the clear coat has been mixed with matting additive -LVM 769 810-, the mixture must be mixed with VHS hardener at a ratio of 4:1. Ready to spray after the addition of 5% clear coat additive -LVM 007 000 A2-.
Gloss levels
 

Setting the gloss level of HS clear coats and HS top coats

  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 71 g 65 g 58 g 41 g
2-pack HS Optimum Plus clear coat -L2K 769 K07- 29 g 35 g 42 g 59 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with VHS hardener
–  After the clear coat has been mixed with matting additive -LVM 769 810-, the mixture must be mixed with VHS hardener at a ratio of 4:1. Ready to spray after the addition of 10 % thinner.
Gloss levels
 

Setting the gloss level of HS clear coats and HS top coats

  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 65 g 57 g 50 g 44 g
2-pack HS mixture paint, white -L2K 074 ...- 35 g 43 g 50 g 56 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with VHS hardener
–  After the matting additive -LVM 769 810- has been mixed with HS top coat, the mixture must be cross-linked with VHS hardener at a ratio of 4:1. Ready to spray after the addition of 15 % thinner.
Gloss levels
 

Setting the gloss level of HS clear coats and HS top coats

  Matt < 20% * Satin-matt < 40% * Satin-gloss < 60% * Glossy < 80% *
Matting additive -LVM 769 810- 71 g 58 g 51 g 31 g
2-pack HS mixture paint, black -L2K 074 ...- 29 g 42 g 49 g 69 g
 
* Since these designations are not standardised, the indicated gloss levels cannot be regarded as binding and are only approximate values commonly used throughout the market.
   
Mixing with VHS hardener
–  After the matting additive -LVM 769 810- has been mixed with HS top coat, the mixture must be cross-linked with VHS hardener at a ratio of 4:1. Ready to spray after the addition of 15 % thinner.
 

Setting the gloss level of HS clear coats and HS top coats

Application
 

Setting the gloss level of HS clear coats and HS top coats

Method of application: “spray”.
–  Application viscosity 4 mm, +20 °C, DIN 53211
Application viscosity 4 mm, gravity-feed spray gun “Compliant” and “HVLP”
 

Setting the gloss level of HS clear coats and HS top coats

DIN 4 mm: 16-20 seconds
 

Setting the gloss level of HS clear coats and HS top coats

–  Addition of thinner at material temperature of +20°C: depending on product used
 

Setting the gloss level of HS clear coats and HS top coats

–  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”.
 

Setting the gloss level of HS clear coats and HS top coats

–  Apply in 2 spray passes with a flash-off time of 5 to 10 minutes between the passes. The first coat is applied with restraint, but still uniformly (observe application instructions).
The specified thickness for the dry film is 60-80 µm.
Application instructions
To achieve the best possible and homogeneous matting effect, the following points should be adhered to during application:
  Note
  •   The spraying distance to the object is somewhat greater than the standard application in order to use the spray atomisation to its fullest effect. (Prevents streaking)
  •   It must be ensured that “spray passes” featheredge evenly and an adequately wet spray film is applied. Application in excessively dry conditions poses the risk of clouding due to uneven flash-off or due to the spray mist not being absorbed.
  •   For paint with poor covering properties, it may be necessary to apply another spray pass after a suitable flash-off time.
  •   Blending in or refinishing the matt clear coat within a component, e.g. a side panel, or speed repair is not possible.
Drying
 

Setting the gloss level of HS clear coats and HS top coats

–  Final flash-off time with force drying is 15 to 20 minutes.
 

Setting the gloss level of HS clear coats and HS top coats

–  Force drying at +60°C to +65°C material temperature in 45 minutes.
  Note
  •   It is not necessary to add 2-pack elastic additive -ALZ 011 001-.
  •   Stir or mix matting additive -LVM 769 810 A2- well in the can. Then, mix it with HS clear coat or HS top coat as specified and do not add hardener and thinner until just prior to use.
  •   The ready-to-spray mixture should be applied immediately. If the mixture is left to stand in the mixing cup or spray gun cup for a longer period of time (15 min.), it must be stirred again prior to further application (sedimentation behaviour).
  •   Adding matting additive -LVM 769 810 A2- might influence the coverage.
  •   It is not possible to polish dust inclusions, therefore cleanliness during the entire refinishing process is very important.
 

Setting the gloss level of HS clear coats and HS top coats

Personal protective equipment:
  Adhere to the safety data sheet.
  Wear personal protective equipment during application.
 

Setting the gloss level of HS clear coats and HS top coats

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