VW Golf manuals

Volkswagen Golf Service & Repair Manual: Aqua Premium system, blending system for 2-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.
   
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 2-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 2-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 2-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 2-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.
Special notes
  Isolate any bare metal surfaces using 2-pack wash primer -LHV 043 000 A2-, and then apply 2-pack HS Performance surfacer.
 

Aqua Premium system, blending system for 2-stage colours

Method 1:
Repair process, blending into adjacent surfaces (e.g. colour-matching between wing and door)
–  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 2-stage colours

–  Then, apply the first moderate spray pass of base coat -1- from the blending area into the wet blending additive -2-.
  P00-10749
–  After that, apply a second moderate spray pass -2- directly without waiting for any flash-off time to elapse. Always make sure to apply this spray pass offset towards front relative to the previous spray pass -1- to ensure a uniform effect.
 

Aqua Premium system, blending system for 2-stage colours

–  After blending in, the transition and the remaining surface -1- must be completed in 1.5 spray passes (starting at new part) (standard process).
 

Aqua Premium system, blending system for 2-stage colours

–  After flashing-off, apply a coat of 2-pack HS clear coat -1- to the entire repair area.
 

Aqua Premium system, blending system for 2-stage colours

Method 2:
Repair process, blending into adjacent surfaces (e.g. colour-matching between wing and door, alternative method for solid colours and dark effect 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 2-stage colours

–  Then, apply the first spray pass of base coat -3- from the blending area (starting at new part) up to the boundary of the wet blending additive -2-. Half of the effect or finish spray coat is applied immediately over the wet blending additive -2- at a greater spraying distance and also towards the new part -1-.
 

Aqua Premium system, blending system for 2-stage colours

–  After blending in, complete the remaining surfaces with base coat -1- in 1.5 spray passes (standard process).
 

Aqua Premium system, blending system for 2-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, starting from the furthest blending area. I.e., all subsequent spray passes remain within the previous spray pass to ensure a uniform effect.
  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.
  Aqua Premium system, blending system for 2-stage colours
Method 3:
Repair process, blending into very small damage, e.g. Clever Repair
  Note
The repair and/or surfacer area should be kept as small as possible.
1st option:
  Ready-to-spray waterborne base coats are used for most colours.
2nd option:
  Recommended for colours with very high metal content; mix Aqua premium waterborne base coat and blending additive for Aqua Premium -LVM 035 100 A3- in a 1:1 ratio with 10% Flop Control -LWM 085 386 A2- (blending additive for Aqua Premium -LVM 035 200/301- is not required). Use the Aqua premium measuring stick for the Clever Repair spot repair method.
  Depending on colour and opacity, this mixture is applied to the repair area and fade-out area in 3 to 5 moderate spray passes with reduced pressure (0.8 to -1.5 bar). Ensure that each spray coat is somewhat larger in area and flashed off until matt. The flash-off time can be accelerated by blowing.
 

Aqua Premium system, blending system for 2-stage colours

–  The clear coat can be applied after the final flash-off time has elapsed.
  Note
  Keep the material flow trigger of the spray gun completely open while applying Aqua Premium waterborne base coat.
  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 2-stage colours

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

Aqua Premium system, blending system for 2-stage colours

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