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Do you have a peelable grade suitable for a
pressure jetting system?
We have a range of adhesives that are suitable
for pressure jetting systems. Contact Us
Grades made off natural rubber latex must not be used in pressure
systems.
Recently my 'peelable' adhesive has been
showing intermittent fibre tear on a promotional mail run. What has
changed?
Peelable adhesives are very sensitive to changes
in the surfaces they bond and to the amount applied. It is possible
that the coat weight applied has increased over time. Alternatively
the ink and or varnish on the paper may have changed, or may be
variable. A minimum sized spot of adhesive and low absorbency paper is
recommended.
I am using a weak substrate but still require
a peelable bond. My current peelable adhesive is giving fibre tear.
We have a range of fugitive / peelable grades
Contact Us, this means that it should be
possible to obtain a peelable bond even on problem papers and boards.
I have noticed that the bond is failing. When
I look at each surface after failure, I can see a white layer. What is
happening?
Some papers have a clay coating to improve ink
acceptance and general appearance. If the clay coating is thick and
has been applied in several layers it is possible for this to split.
So when the two surfaces are pulled apart, the failure is not in the
adhesive layer but within the clay coat. You need an adhesive that
will prevent coat stripping. Contact Us
I make lightweight paper leaflets and
magazines. When I use coated paper the seam adhesive gives a very weak
bond.
Coated papers require a slightly different
adhesive to achieve good bond strength and Pafra have products for
both requirements. Contact Us
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