Page 318 - Wurth Total Catalogue

polyester filler extra fine - directions for use

Base:
The surface must be clean and grease free. To achieve good adhesion be sure that the surface is rough. Do not use this product over a thermoplastic acrylic
system (acrylic or lacquer primer surfaces).

Mixing:
No more than 2 (by weight) of Hardener paste should be added to 100 parts of Polyester filler. Excessive amounts of Hardener paste can result in peroxide
bleaching of the paint.

Working Time:
Working time is the processing time (3-4 minutes) after the filler and the hardener are mixed together.

Hardening Time:
This is the amount of time until the repaired base can receive further work. At 20ºC 15 - 20 minutes is normally required before the filler can be sanded.
When temperature is warmer the drying time shortens: if the temperature is cooler the drying time lengthens. To gain time in the drying process, in winter,
it is advised that metal surfaces are warmed using infra-red or other heat lamps prior to application.

Special Instructions:
Discoloration in the topcoat
Topcoat (formation of blisters and paint colour changes)
Since all polyester-resin based materials are moisture sensitive it is advisable wherever possible to dry
sand. Excessive amounts of hardener added to the filler can cause bleaching of the paint topcoats.
Therefore should be primed.

Topcoat Putty with too much
hardener
Filler layer Metal base surface

AUS. pub. 01/14 ©

05 3562