MottoMastic

 

Description

MottoMastic is engineered to effectively halt the propagation of fire, smoke, and gases through apertures in fire-rated walls and floors, particularly focusing on linear joints and openings for building service penetrations.

 

This 4-hour rated intumescent sealant is specially formulated with fillers that contribute to noise reduction.

Sound InsulationRw 40 dB
ClassificationEI 120
Product Lifespan25 Years
Certifications
Technical DocumentsKey Features
  • Suitable for fire rating in both horizontal and vertical joints.
  • Priming is unnecessary for most construction substrates.
  • Designed for use in joints measuring up to 50 mm wide.
  • Low emissions, environmentally and user friendly
  • Exhibits excellent resistance to slumping.
  • Shelf life of 18 months.
Applications

MottoMastic should be applied over appropriate backing materials to ensure the correct width-to-depth ratio and minimize joint shrinkage during hardening.

Upon exposure to atmospheric conditions, MottoMastic undergoes curing, retaining a slight degree of elasticity to accommodate joint movement. In the event of a fire, MottoMastic forms a sturdy fire seal through the creation of a durable intumescent char.

This sealant has undergone testing according to BS EN 1366-3 standards, with additional guidance from BS EN 1366-4 for fire protection joints. It has also been tested in accordance with BS EN ISO 140-3:1995 for acoustic performance.