Volkswagen Golf Service & Repair Manual: 2-pack plastic adhesion surfacer

Designation:

2-pack primer surfacer for plastics -LKF 696 009 A2-, white

2-pack primer surfacer for plastics -LKF 696 040 A2-, black

Issued 08.2013

Product description

This product is a high-grade 2-pack primer surfacer for plastic parts.

Properties:

Good adhesion on all plastics commonly used for passenger cars

Wet-on-wet application

Efficient paint system

Easy to use

Very long application time

Technical data sheet

Substrate

Suitable substrates:

All common exterior plastic car parts

PP, PP/EPDM, ABS, SAN, PC, PA, PUR-RIM, R-TPU, TPO, PBTP, PVC

PUR, PUR flexible foam.

UP-GF (fibreglass).

Substrate pre-treatment:

The substrate must be free of release agents.

Before cleaning plastic parts, temper them for 60 minutes at +60 °C to “sweat out” the release agents.

Clean with anti-static plastic cleaner -LVM 001 001 A2- or with the milder slow-drying silicone remover -LVM 020 100 A5-.

Note

The effort required for the necessary cleaning depends on the type and quantity of the release agent used. It is recommended to use an emery pad to help in cleaning.

Let the thinner evaporate completely (e.g. air-dry overnight at ambient temperature or for 30-40 minutes at +60 °C).

Before applying the surfacer, clean lightly once more with anti-static plastic cleaner -LVM 001 001 A2- or slow-drying silicone remover -LVM 020 100 A5- (with anti-static effect).

Application

Thinner:

Do not add any thinner!

Mixing ratio:

1:1 by volume with hardener for 2-pack primer surfacer -LHA 005 000 A2-.

Application time/pot life:

Ready-to-spray preparation approx. 7-9 hours at +20 °C

Note Do not add any thinner! The material is ready to spray after hardener has been added.

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

ISO 4 mm: 37-45 seconds

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

Apply in one spray operation (apply a tack coat followed by a full coat).
The specified thickness for the dry film is 25-30 µm.

Drying

Air drying at +20 °C ambient temperature, may be resprayed after 15 minutes.

Recoating

May be resprayed wet-on-wet with a suitable top coat after a flash-off time of 15-20 minutes (up to 24 hours maximum) at +20 °C.

Note

If required, 2-pack primer surfacer for plastics can be sanded lightly with P800 to P1000-grade wet sandpaper after low baking for 30 minutes at +60 °C material temperature or air drying for 2 hours at +20 °C ambient temperature.

Any defects in the substrate can be treated with 2-pack fine filler -LSP 784 002 A2- after the 2-pack primer surfacer for plastics has dried.

Filler spots must be isolated with 2-pack primer surfacer for plastics before the top coat is applied.

It can then be overpainted with:

Waterborne base coat and 2-pack HS clear coat

2-pack HS top coat

WARNING Painted plastic parts must not be cleaned with a high-pressure cleaner during the first 6 weeks. After this period, the nozzle must be held at a distance of no less than 30 cm from the object.

Personal protective equipment:

Adhere to the safety data sheet.

Wear personal protective equipment during application.

Data

Viscosity as supplied	Hardener for 2-pack primer surfacer	11 seconds
Viscosity as supplied	2-pack plastic adhesion surfacer	100 seconds
Flash point:	Above +23 °C

Storage

The 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.

Storage conditions

The prescribed storage temperature for the 2-pack primer surfacer for plastics is +20 °C. The prescribed storage temperature for the hardener for 2-pack primer surfacer is +20 °C. (Do not store at temperatures below +5 °C.) If it has been exposed to freezing temperatures, the hardener must first be heated up to +20 °C. Then it is ready for use.

2-pack plastic adhesion surfacer