Volkswagen Polo Service & Repair Manual: Two-Part Wash Primer

Definition:

Two-Part Wash Primer -LHV 043 000 A2-

Edition 10/2010

Product Description

The two-part wash primer is a zinc chromate-free, phenol-free and acid-free two-component wash primer from our PVB system.

Passivizing properties provide excellent protection against corrosion.

For metallic base surfaces, especially for aluminum and galvanized sheet steel

Simple processing properties

Olive gray

Application Instructions

Base Surface

Suitable base surfaces:

Bare sheet steel, cleaned and sanded

Cleaned and sanded, galvanized/electrolytically zinced sheet steel or soft aluminum

Sanded factory primer

Thoroughly sanded old primer or factory primer (excluding thermoplastic coating)

Surfaces prepared with two-part polyester products and then sanded very fine.

Pre-treatment of base surfaces:

Carefully clean using Silicone Remover -LVM 020 000 A5- or Silicone Remover, Long -LVM 020 100 A5-.

Clean and sand factory or old paint, eliminate any potential rust areas, and sand transitions to old paint.

Use a suitable cleaning agent before reworking to ensure a clean and residue-free surface.

Processing

Mixture ratio:

1:1 by volume with Two-Part Additional Solution -LHA 004 000 A2-

Curing Time:

Adjustment for spraying 8 to 10 hours at +20 °C

Note

Set material must be processed on the same day.

Application type “coat”

Processing viscosity 4 mm for +20 °C, German Industry Standardization 53211

Processing viscosity 4 mm gravity feed spraygun “Compliant” and “HVLP”:

DIN 4 mm: 16 to 18 seconds

Set spray nozzle (see manufacturer's information): “Compliant” 1.2 to 1.4 mm.
Set spray nozzle (see manufacturer's information): “HVLP” 1.3 to 1.5 mm.
Set spray pressure (see manufacturer's information): “Compliant” to 2.0 to 2.5 bar.
Set atomizing pressure (see manufacturer's information): “HVLP” 0.7 bar.

The prescribed layer thickness is 8 to 12 µm.

Drying

Air dry at +20 °C room temperature, can be sprayed over after 30 minutes.

WARNING Due to possible adhesion impairment, forced drying and IR drying are not possible.

Reworking

Can be sprayed over with two-part HS filler at +20 °C after ventilation time.

Afterwards, can be painted over with:

Water-based base paint and two-part HS clear coat

Two-Part HS Top Coat

Caution Do not rework with polyester products, epoxy products or water soluble products.

Do not apply to thermoplastic coatings.

Do not rework directly with water-based base paint or two-part top coat.

Personal Protective Equipment:

Note the safety data sheets

Wear the personal protective equipment during application

Characteristics

Delivery Viscosity	at least 60 seconds
Flashpoint:	above +23 °C
VOC value: 2004/42/IIB(c)(780)780	The EU limit for this product (product category IIB.c) in ready-to-use form is a maximum of 780 g/L volatile organic compounds. The VOC value of this product in ready-to-use form is a maximum of 780 g/L.

Note The yield was calculated taking into account the recommended layer thickness and the procentual proportion of solid material (without thinner). The corresponding processing losses were not taken into account.

Storage

Guaranteed shelf life of 24 months from date of manufacture. Use no later than the date indicated on the label and store in original container at +20 °C.

Two-Part Wash Primer