VW Golf manuals

Volkswagen Golf Service & Repair Manual: Aqua Premium system, blending system for 3-stage colours

Issued 04.2013
Product description/objectives
To attain visually perfect colour transition in blending area or to adjacent parts such as wings or doors.
Technical data sheet
Substrate
Suitable substrates:
  2-pack HS surfacer
  Intact old paint
  Prime plastic surfaces with transparent adhesion promoter -ALO 822 000 10-, and then fill with elasticised 2-pack HS surfacer (2-pack primer surfacer for plastics -LKF 696 009 A2-/-LKF 696 040 A2-).
   
Substrate pre-treatment:
–  Thoroughly clean factory paint, old paint or 2-pack HS surfacer with silicone remover -LVM 020 000 A5- or slow-drying silicone remover -LVM 020 100 A5-.
 

Aqua Premium system, blending system for 3-stage colours

Preparation
–  Dry-sand repair area using P500/P600-grade sandpaper, or wet-sand it using water-proof P800/P1000-grade sandpaper.
 

Aqua Premium system, blending system for 3-stage colours

–  An extensive section of the adjacent area or (parts surrounding the repair area) must be lightly wet-sanded with P1000 to P3000-grade sandpaper.
  Note
Use an emery pad to sand swage lines, edges or door-handle recesses during preparation work.
 

Aqua Premium system, blending system for 3-stage colours

Cleaning
–  Thoroughly clean the whole surface with silicone remover -LVM 020 000 A5- to remove any dust, paint residue from sanding or any other impurities.
–  Wipe off any excess silicone remover with a lint-free cloth, leaving no streaks.
 

Aqua Premium system, blending system for 3-stage colours

–  Allow the moisture on substrates which have been wet-sanded or cleaned to evaporate completely.
Tack cloths of the latest generation with an effective adhesion formula, e.g. duster -VAS 6177-) to minimise the risk of chemical or sticky residue → Chapter „Tack cloth -VAS 6177-“.
Special notes
  Isolate any bare metal surfaces using 2-pack wash primer -LHV 043 000 A2-, and then apply 2-pack HS Performance surfacer.
  It is strongly recommended to spray a sample object.
 

Aqua Premium system, blending system for 3-stage colours

Blending in 3-stage colours:
Preparing the blending additive:
–  Mix blending additive for Aqua Premium -LVM 035 100 A3- with 10% Aqua Premium hardener -LVM 045 000 A1-.
 

Aqua Premium system, blending system for 3-stage colours

Repair process, blending into adjacent surfaces (e.g. colour-matching between wing and door)
 

Aqua Premium system, blending system for 3-stage colours

–  In the blending area, apply one or two full coats of blending additive for Aqua Premium -LVM 035 100 A3--2- at normal spraying pressure onto the old paint/surfaced substrate -1-.
  Note
Ensure that the blending area is large enough.
 

Aqua Premium system, blending system for 3-stage colours

Preparing the base coat:
 

Aqua Premium system, blending system for 3-stage colours

–  Apply the base coat -2- mixed with 5% Aqua premium hardener -LVM 045 000 A1- and, for solid colours 10% additive for Aqua premium -LVM 035 301 A3-, or for effect colours mixed with 20% additive for Aqua premium -LVM 035 301 A3- to the repair area and adjacent blending area until coverage is opaque.
–  The fade-out area should be located within the wet blending additive for Aqua Premium -LVM 035 100 A3--1-.
  Note
In the event of large surfaces, high temperatures and a low humidity up to 10% of Aquaplus demineralised water -LVW 010 000 A5- may be added.
Pot life:
  Effect colour, 45-60 minutes at +20°C
  Solid colours: 90-120 minutes at +20°C
 

Aqua Premium system, blending system for 3-stage colours

Flash-off/drying:
Options:
  Flash-off with an air diffuser at +20°C to +40°C until the entire surface is matt.
  Allow to flash-off initially for 5 to 10 minutes, and then allow final flash-off at +60 to +65°C. Allow base coat to cool before applying effect coat.
  Flash-off without air diffuser until the entire surface is matt.
 

Aqua Premium system, blending system for 3-stage colours

–  When the entire surface is matt, apply one or two full coats of pure blending additive for Aqua Premium -LVM 035 100 A3--1- without hardener.
 

Aqua Premium system, blending system for 3-stage colours

Preparing the effect colour:
–  The effect colour is mixed with 20% of additive for Aqua premium -LVM 035 301 A3-.
  Note
In the event of large surfaces, high temperatures and a low humidity up to 10% of Aquaplus demineralised water -LVW 010 000 A5- may be added.
 

Aqua Premium system, blending system for 3-stage colours

Step 1, blending in the effect colour (from the outside towards the inside)
–  The effect colour is applied from the fade-out area towards the new part -1-. I.e., it is applied from the outside towards the inside (»wet in wet«) into the blending additive for Aqua Premium -LVM 035 100 A3-.
–  Then, the next effect colour coat is applied towards the new part as necessary.
  Note
For some effect colours, 2 to 3 additional spray passes must be applied to visually match up the effect.
 

Aqua Premium system, blending system for 3-stage colours

Step 2, blending in the effect colour (from the outside towards the inside)
 

Aqua Premium system, blending system for 3-stage colours

Step 3, blending in the effect colour (from the outside towards the inside)
 

Aqua Premium system, blending system for 3-stage colours

–  After flashing-off, apply a coat of 2-pack HS clear coat -1- to the entire repair area.
  Note
  It is recommended that starting with the first spray pass, all subsequent spray passes are already matched to the repair area/base coat, starting from the furthest blending area. I. e., all subsequent spray passes remain within the previous spray pass to avoid visible edges or shadows.
  Keep the material flow trigger of the spray gun completely open while applying Aqua Premium waterborne base coat.
  The spray pressure for the effect coat may be varied between 1.5 and 2.0 bar depending on the size of the object.
  For information on the drying times, refer to the technical data sheet for the relevant product.
Notes for application on large surfaces:
  In general, the additive for Aqua premium -LVM 035 301 A3- should always be used when applying 3-stage colours.
  In the event of large surfaces, high temperatures and a low humidity it is recommended to add up to 10% of Aquaplus demineralised water -LVW 010 000 A5-.
  The use of stationary air diffusers or force drying, e.g. low baking, for efficient flash-off and drying processes is recommended.
Product application
  The spray equipment must be suitable for water-based products. Pay attention to the manufacturer's specifications.
  The Aqua Premium mixture paint can be used only as part of a colour formula.
  If any mixing colour is applied alone, the results may differ substantially from the description in this technical data sheet.
Cleaning of tools
  Rinse with Aquaplus demineralised water -LVW 010 000 A5- before and after use. Then wash out with nitrocellulose thinner -LVE 856 000 A3-.
Waste disposal
  Collect liquid water-based waste separately from conventional liquid waste. If the two are mixed, it may be impossible to dispose of the mixture, or at best difficult, and therefore expensive.
 

Aqua Premium system, blending system for 3-stage colours

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