- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 30 Sep 2020
Mastic is commonly used on construction projects as an adhesive and sealant. It is a popular choice where one surface needs to be adhered to another in a durable bond, or where the area needs to be protected.
Examples of uses for mastic sealant include:
- Bonding ceiling, wall and floor tiles.
- Bonding plywood panels.
- As a joint-sealer for windows and doors.
- Sealing the area around bathtubs and other sanitary appliances.
- As a filler for cracks in masonry and concrete.
Although mastic will usually resist some applied pressure, it is not flexible enough to accommodate large movements. Due to its viscosity, it is best applied to thick rather than thinner areas of application, such as large gaps and cracks. Before applying mastic, the area may not require priming, but it should be clean and dry. It is best applied by using a caulking gun.
 Related articles on Designing Buildings Wiki
Featured articles and news
Improving facilities, accessibility and overall appearance.
Free download of TG 12/2021 available.
TESP works with The Youth Group to form skill sharing network.
Big tech collaborates on platform for the built environment.
Letter signed by 21 organisations sent to MHCLG.
A look at the Government's strategic approach.
Steps to help reduce the spread of infection inside buildings.
This social media-centred hobby can be both dangerous and illegal.
Millwork wall treatment with a long and illustrious history.
HSE introduces cumulative exposure calculator.
The Edwardians and their houses.
Cut off from civilian life for over 900 years.
Gaining green support from the carbon giants.
Click the button to subscribe.