What are the benefits of mastic pointing?
We have seen our customers enjoy the benefits of mastic pointing and pointing mastic sand first-hand. Here are some of the advantages of mastic pointing…
Mastic pointing is robust, yet flexible
Movement joints are put in place to allow movement within the structure of a building. Construction joints up to 30mm should be sealed with a suitable flexible sealant, such as mastic that can take the appropriate building movement required whilst maintaining structural integrity and preventing any water ingress into the building.
Mastic pointing is reliable
Joint sealants reach their performance limits at around 25-30mm wide and have a maximum joint movement capability of around 25% of the joint width. At these upper levels of their application limitations, extruded joint sealant application and installation can still be very difficult and requires the ideal environmental conditions and skilled labour for success.
Mastic is versatile
Mastic sealant is highly versatile and can adhere to timber, aluminium, steel, marble, glass and more. This makes it a great option for mastic pointing as well as sealing between timber window frames, doors and entranceways and as a filler for cracks in masonry, concrete and more.
Mastic pointing is durable
Mastic can last for up to 20 years outside, making it a great option for pointing. Mastic can be used outside because of its water-resistant, temperature-resistant and UV-resistant properties. It is also capable of resisting corrosion which makes it suitable for use with metals.
The application of mastic on a surface requires much less preparation than other types of adhesive. For example, mastic pointing can be applied on the surface right away without the need for primer. This makes for a quick solution that is cost-effective as it is less labour-intensive than others.