Volkswagen Golf Service & Repair Manual: 2-pack wash primer

Designation:

2-pack wash primer -LHV 043 000 A2-

Issued 10.2010

Product description

The 2-pack wash primer is a zinc chromate-free, phenol-free, acid-curing two-pack wash primer from our PVB system.

Passivation qualities provide excellent corrosion protection

For all metal substrates, in particular for aluminium and galvanised steel panels

Easy to apply

Colour: olive grey

Technical data sheet

Substrate

Suitable substrates:

Bare sheet steel, cleaned and sanded

Cleaned and sanded electroplated or roller-galvanised steel panels or soft aluminium

Lightly sanded factory primer

Well-sanded factory paint or old paint (with the exception of thermoplastic paint)

Surfaces prepared with 2-pack polyester products and then finely sanded

Substrate pre-treatment:

Thoroughly clean with silicone remover -LVM 020 000 A5- or slow-drying silicone remover -LVM 020 100 A5-.

Clean and lightly sand factory paint or old paint, completely remove any rust spots and sand feather edges to the old paint.

Before recoating, use a suitable cleaning agent to ensure a clean surface free of residues.

Application

Mixing ratio:

1:1 by volume with 2-pack additive solution -LHA 004 000 A2-

Pot life:

Ready-to-spray preparation approx. 8-10 hours at +20 °C

Note

Mixed material must be used the same day.

Method of application: “spray”.

Application viscosity 4 mm, +20 °C, DIN 53211

Application viscosity 4 mm, gravity-feed spray gun “compliant” and “HVLP”:

DIN 4 mm: 16-18 seconds

Adjust spray nozzle following manufacturer's instructions to 1.2-1.4 mm for “compliancy”.
Adjust spray nozzle following manufacturer's instructions to 1.3-1.5 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”.

The specified thickness for the dry film is 8-12 µm.

Drying

Air drying at +20 °C ambient temperature, may be resprayed after 30 minutes

WARNING Force drying and infrared drying are not possible because they can cause intermediate adhesion problems.

Recoating

After flash-off period at +20 °C, may be resprayed with 2-pack HS surfacer.

It can then be overpainted with:

Waterborne base coat and 2-pack HS clear coat

2-pack HS top coat

Caution

Do not recoat with polyester products, epoxy products or water-based products.

Do not use on thermoplastic paint.

Do not directly overpaint with waterborne base coat or 2-pack HS top coat.

Personal protective equipment:

Adhere to the safety data sheet.

Wear personal protective equipment during application.

Data

Viscosity as supplied	At least 60 seconds
Flash point:	Above +23 °C
VOC content: 2004/42/IIB(c)(780)780	The EU limit value for this product (product category IIB.c) in ready-to-spray form is max. 780 g/litre of volatile organic compounds. The VOC content of this product in ready-to-spray form is max. 780 g/l.

Note Coverage was calculated on the basis of the recommended coat thickness and the percentage by volume of non-volatile material (without added thinner). The respective loss during application was not taken into account.

Storage

Guaranteed shelf life is 24 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.

2-pack wash primer