VW Polo manuals

Volkswagen Polo Service & Repair Manual: Paint System for Plastic Parts

This universal painting system enables you to safely and simply paint all plastic parts which can be usually found on the exterior. (Plastic types: PP, EPDM, ABS, PC, PPO, PBTP, UP-GF, PA, PVC, R-TPU, PUR) This technical reference material does not apply to factory primed plastic parts.
Base Surface
Pretreatment of base surfaces:
   
–  The base surface must be free of separating agents. Before cleaning the plastic parts, temper them for 60 minutes at +60 ℃ to sweat out the separating agents.
–  Clean with the Antistatic Plastic Cleaner -LKR 001 001 A3- or a milder Silicone Remover, Long -LSE 20 100 A3-.
The effort needed for cleaning depends on the type and quantity of the separating agent used. It is recommend to use a sanding pad to support the cleaning process. Let the thinner evaporate (for example, air-drying overnight at room temperature or 30-40 minutes at +60 ℃).
 

Paint System for Plastic Parts

–  Before priming, lightly clean again using Antistatic Plastic Cleaner -LKR 001 001 A3- or Silicone Remover, Long -LSE 20 100 A3-.
The Paint Structure is not for Primed Plastic Parts.
Primer:
To attain secure adhesion, plastics must be primed after they have been thoroughly cleaned. Here the user has two choices:
1. -  Prime with Two-Part Synthetic Adhesion Filler, White - LKF 696 009- or Two-Part Synthetic Adhesion Filler, Black - LKF 696 040-. The Two-Part Synthetic Adhesion Filler, White -LKF 696 009- and the Two-Part Synthetic Adhesion Filler, Black -LKF 696 040- are primer/fillers which can be directly painted over with top coat.
2. -  Prime with Glazing Adhesion Promoter - ALO 822 000 10- and rework with elastified Two-part HS filler. Further processing with top coat and clear coat.
Notes for Damages:
–  Small scratches can be filled after priming with Two-Part Fine Filling Paste -LSP 784 002 A2-.
–  After sanding the filled patches insulate them:
1. -  With Two-Part Synthetic Adhesion Filler, White - LKF 696 009- or Two-Part Synthetic Adhesion Filler, Black - LKF 696 040-.
2. -  Prime with Glazing Adhesion Promoter - ALO 822 000 10- and rework with elastified Two-part HS. Further processing with top coat and clear coat.
For the application instructions, evaporating and drying times refer to the respective technical application information.
→ Chapter „Two-Part Synthetic Adhesion Filler“.
→ Chapter „Adhesion Promoter (Glazing)“.
→ Chapter „Top Coats“.
→ Chapter „Clear Coats“.
The Addition of Two-Part Elastic Additive -ALZ 011 001- in Two-part HS Filler.
15 % for rigid and semi-rigid plastics
30 % for highly flexible plastics.
For the application refer to the technical application information of the respective filler. Refer to → Chapter „Filler“.
  Note
Painted plastic parts may not be cleaned with a high-pressure cleaner before 6 weeks have passed. The minimum distance between the nozzle and the object is 30 cm.
One-Coat Painting
Top Coat:
 

Paint System for Plastic Parts

–  Mix two-part HS top coat with 15 % Two-Part Elastic Additive -ALZ 011 001- then combine this mixture.
 

Paint System for Plastic Parts

–  Mixture ratio 3:1 with two-part VHS hardener and 15 % Two-Part Thinner, Special -LVM 009 200 A2-.
Processing:
 

Paint System for Plastic Parts

–  Apply 1.5 coats.
 

Paint System for Plastic Parts

–  Let air dry overnight at +20 °C (68°F)or after 5 to 10 minute final drying time, 30 to 40 minutes at +60 °C (140°F). When using Two-Part Elastic Additive -ALZ 011 001- use longer drying times.
Two-Coat Painting Solid, Metallic, Pearls
Base Paint:
 

Paint System for Plastic Parts

–  Water-based base paint with 10 % Purified Water -LVW 010 000 A5-.
Processing:
 

Paint System for Plastic Parts

–  Apply 1.5 coats.
Clear Coats:
 

Paint System for Plastic Parts

–  Mix the two-part HS clear coat with Two-Part Elastic Additive -ALZ 011 001-.
Processing:
 

Paint System for Plastic Parts

–  According to the respective technical application instructions of the clear coat. Refer to → Chapter „Clear Coats“.
Drying:
 

Paint System for Plastic Parts

–  Let air dry overnight at +20 °C (68°F) or after 10 minute final drying time, 40 to 45 minutes at +60 °C (140 °F). When using Two-Part Elastic Additive -ALZ 011 001- use longer drying times.
Painting with Satin Finish Paint Shades
One-Coat Painting, Top Coat:
 

Paint System for Plastic Parts

–  Mix two-part top coat in a 1:1 ratio with Two-Part Matting Component -ALN 775 106- then combine this mixture.
 

Paint System for Plastic Parts

–  Mixture ratio 4:1 with two-part VHS hardener and 15 % Two-Part Thinner, Special -LVM 009 200 A2-.
Processing:
 

Paint System for Plastic Parts

–  Apply with two spray applications with 5 to 10 minutes' intermediate drying time for an even paint film surface.
Drying:
 

Paint System for Plastic Parts

–  Let air dry overnight at +20 °C (68°F) or after 5 to 10 minutes final drying time 30 to 40 minutes at +60 °C (140 °F).
Painting in Color Shades with Texture
One-Coat Painting, Top Coat:
 

Paint System for Plastic Parts

–  Mix two-part HS top coat in a 1:1 ration with Structuring Component, Rough/Fine -ALN 775 107/108- then combine this mixture.
 

Paint System for Plastic Parts

–  Mixture ratio 4:1 with two-part VHS hardener and 15 % Two-Part Thinner, Special -LVM 009 200 A2-.
Processing:
–  Two spray applications:
1 Apply normal application, 5 to 10 minutes with intermediate ventilation.
 

Paint System for Plastic Parts

2. Apply the spray coat according to the desired texture.
 

Paint System for Plastic Parts

–  Let air dry overnight at +20 °C (68 °F) or after 5 to 10 minutes final drying time 30 to 40 minutes at +60 °C (140 °F).
 

Paint System for Plastic Parts

Personal Protective Equipment:
Note the safety data sheets
Wear the personal protective equipment during application
 

Paint System for Plastic Parts

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