Page 316 - Wurth Total Catalogue

Unifill - directions for Use

Preparation:
The surface must be clean, dry and grease free. To achieve good adhesion be sure that the surface is rough such as metal, wood and laminated materials
(not thermoplastic acrylic materials).

Mixing Instructions:
No more than 2 (by weight) of the hardener paste should be added to 100 parts of polyester filler. Excessive amounts of hardener paste can result in
peroxide bleaching of the paint. In winter it is advised that metal surfaces are warmed using infra-red or other heat lamps prior to application.

Working Time:
The working time refers to the period during which the mixed filler paste is usable, 3- 4 minutes.

Hardening Time:
At 20°C 15 -20 minutes is normally required before the filler can be sanded. Heat will shorten the hardening time, cold temperatures lengthen time.

2% hardener 4 - 5 min. 20°C. 20 - 30 min. 20°C P 80 - 280
potlife

Discoloration in the topcoat Special Instructions:
Topcoat (formation of blisters and paint colour changes).
Since all polyester-resin based resin 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 all surfaces should be given an isolating coat of
acrylic primer or an epoxy based filler or equivalent.

Does not adhere on lead and other unknown metal substances and metal surfaces.
Putty with too much
Topcoat
hardener
Filler layer Metal base surface

AUS. pub. 01/14 ©

05 3532