It
is not just coatings and materials that can be measured for bond
strength. It is also critical to find out the exact bond
strength between many types of laminated materials. The PAT
adhesion tester makes this testing process very easy.
The test procedure is almost identical to coating testing.
On important difference is the necessity to cut out the
circumference of the test element through the laminated layer in
order to isolate it from the rest of the surface.
The resulting cylindrical test sample resembles traditional tensile testing (in a tensile testing machine) but with one big difference: Unlike in tensile testing machines (even those with universal link connections in both ends of the sample) perfectly uniform stress distribution is ensured with the DFD® pull technology.
Below are the various adhesion testing models best suited for measuring laminate tensile strength:
Manual Testing
1) Manual testing
GM01/6.3kN
The most
popular all-round manual bond strength pull-off tester with a whole
range of test element sizes ranging from Ø8.16mm to 8.16mm to Ø50mm
giving much testing flexibility for a wide variety of materials.
GM04/20kN
Testing with 20
kN gives more pull strength and is suitable for up to 8.5MPa/1200psi
with the Ø50mm test elements.
GM04/40kN
The most powerful
manual testing machine with up to 40kN pull force.
Automatic Testing
The automatic adhesion testing machine ensures consistent testing, easy operation and digital logging option
AT101E/6.3kN
The
automatic equivalent of model GM01, this is an all-round testing
machine for a wide variety of test element sizes ranging from Ø8.16mm
to 8.16mm to Ø50mm giving much testing flexibility for a wide
variety of materials.
AT101E/20kN
If testing of
higher bond strength is required the 20kN machine is a good
alternative.
AT101E/40kN
If testing of
higher bond strength is required the 20kN machine is a good
alternative.
AT101E/80kN
The most
powerful testing machine in the range. Used for the high
tensile laminates.
AT101E/1kN
A specialty testing machine with only 1kN
pull force. This model is used with very small test elements
ranging from Ø2.8mm.