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A proper cartridge cut is critical when using Vettec materials

on Thu, 12/20/2012 - 18:58
This is a cartridge cut with nail cutters.  Note how the lack of sharpness in the tool knurled the edges; in effect, it pinched the nipple before it started cutting through it.

At Vettec, we don't want anyone to have a failure with our materials because we know they can work wonders when used properly.  We replaced the Equi-Pak CS cartridge shown here without question because we don't want someone paying for our material and then have it not perform.  This is a cartridge sent in by a customer who had problems with the product mixing and setting...actually it didn't do either very well.  This perfectly illustrates the need for education when using adhesives of any type; you must follow directions.  The tip of the cartridge should be cut clean and level at the scored line.  With this angled cut, the openings on each side are a different size; mixing will not be equal, and setting may or may not happen.

The cartridge here was cut with nail cutters.  Note how the lack of sharpness in the tool knurled the edges; in effect, it pinched the nipple before it started cutting through it.

This is not always a problem, but pinching can change the shape of the openings....the duller the tool, the more likely you'll have a problem.  Sometimes a dull tool will crack the edges of the nipple and then while you're dispensing, material will leak out where the mix tip attaches.

The bottom two pictures illustrate how openings should look like when a proper cut is made....equal size, equal shape.

The cut you want will be a clean edge, level, cut at the scored line.  This also allows the storage cap to fit and seal better.

The duller the tool, the more likely you'll have a problem.  Sometimes a dull tool will crack the edges of the nipple and then while you're dispensing, material will leak out where the mix tip attaches.This is what the openings should look like when a proper cut is made....equal size, equal shape.
This is what the openings should look like when a proper cut is made....equal size, equal shape.

Below is a video demonstrating this very technique!  Enjoy.