R
7
en
If no coating is present on the dolly this must be recorded as a failure of the adhesive (or glue). This is
normally due to incorrect or insufficient mixing of the component parts of the adhesive, or incompatibility of
the adhesive and the coating.
Observing the test area will give additional information about the type of failure; adhesion and cohesion
between different layers of the coating.
3 ADHESIVES
The adhesive supplied with the instrument is Regular Araldite which is a two component epoxy paste. When
mixed, it is to be used within 1 hour. The two components should be mixed in roughly equal portions.
Curing Times:
•
24 hours at 25°C
•
3 hours at 60°C
Suitable for warm and hot environments. Lower temperatures require extended curing times of up to 3 days
or more.
Rapid Araldite is a fast setting two pack epoxy paste. It should be mixed for 30 seconds and used within 2
minutes.
Curing Times:
•
8 hours at 25°C
•
4 hours at 10°C
•
2 hours at 23°C
•
1.5 hours at 40°C
106_TMA_0003_00_09.fm Page 7 Tuesday, July 31, 2012 2:08 PM
106
Pull Off Adhesion Tester
9 of 12
For more information
/ 1300 287 935
[email protected] / www.burwell.com.au
