In each case, work on a harder surface, first placing the sleeve and then inserting the product. Then fold the closure over to the other side with applying some force and then swipe your finger several times along the glued part. If you do not exert enough force on the surfaces to stick together, the glueing can easily come loose and open.
Always work on a flat surface when placing on the sleeve!
In case of softer products, after inserting it, press the adhesive part of the sleeve over to the other side then swipe your finger repeatedly along the glued part slightly pressing it to ensure that the surfaces adhere well.
In case of harder products the process is similar. Holding the product on a flat surface swipe our finger repeatedly on glueing.
It is not enough to just remove the silicone strip and fold the sleeve, as this will not provide enough adhesion and the sleeve may open.
When designing, make sure that the surfaces to be glued (where the glue is placed and where it is glued) are free of varnish or paint!
In case of any question please contact our export department at +36-1-414-3016
