What is a pointing and grouting gun?
A pointing and grouting gun is a tool used for piping or injecting mortar material and cement grout.
It allows the user to apply mortar and grout with greater accuracy and less effort than the traditional trowel and mortar rake.
There is essentially no difference between a pointing or grouting gun; the name changes depending on the job you're doing.
What is pointing?
"Pointing" is the name given to the external part of mortar joints. It is essentially the visible part of mortar between brickwork.
What is repointing?
"Repointing" is the process of renewing these external mortar joints when weathering or decay has caused voids to appear in the mortar.
Repointing is important because voids in mortar brickwork can lead to significant structural damage.
Pointing and grouting gun vs. older methods
The pointing and grouting gun is becoming more popular when compared to older methods such as the grout bag which works in a similar way to icing a cake.
As any baker will tell you, using a bag such as this requires a lot of concentration and can be messy, not to mention difficult to clean afterwards.
Another method losing popularity to the pointing and grouting gun is the use of pointing knives which are both time-consuming and harder to use.