MCT ENGINEERED SYSTEM
Polysulphide movement-joint sealing
Construction / expansion joints requiring two-component polysulphide sealant

CONDITIONS
Start with the site
Construction / expansion joints requiring two-component polysulphide sealant · Concrete | porous mineral substrate · Interior | exterior | movement
Joint dimensions and movement calculations are project-specific.
MCT / STAGES
System stages
See each stage in context, understand its technical role and open the relevant MCT product data directly.
APPLICATION SEQUENCE
Select a stage. Follow its role to the product and technical data.
Joint preparation
Clean and dry joint surfaces
Install closed-cell polyethylene backing rod
Prime porous substrates such as concrete
Mechanically mix at 400–500 rpm
MCT / PRODUCT ROLES
MCT products in this system
MCT / TDS
Technical data
PROJECT / NEXT STEP
Bring us the condition on site.
Share the project stage, substrate, problem and site condition. If you used Solution Finder, your technical summary comes with you.

