Nullifire FS702 Intumastic: Fire Resistant Acrylic Sealant

October 20, 2026

Choosing the right sealant is an important part of an effective passive fire protection system. Nullifire FS702 Intumastic is a water-based acrylic sealant that cures to form a fire yet flexible fire seal.


What is Nullifire FS702 Intumastic?

FS702 is designed for suitable firestopping applications, including specified linear joints and service penetrations. Its adhesive properties also make it suitable for bonding and pointing applications associated with compatible FB750 Intubatt systems.


The product is available from Blazeout in white, gun-grade packaging. Always check the product listing for the specific pack size and availability.


Why does the right firestopping sealant matter?

Different sealants are designed for different applications. Factors such as the substrate, joint dimensions, movement requirements and services passing through an opening all influence product selection.


FS702 should only be used where the proposed installation matches the manufacturer's tested system and technical guidance. It is important not to assume that the same fire performance applies to every type of join or penetration.


Blazeout supplies passive fire protection products and firestopping materials for construction professionals. We aim to make sourcing project materials simpler by offering a broad range through one supplier.


If you need Nullfire FS702 Intumastic or other firestopping products, contact our team for availability and pricing.

October 20, 2026
Find out about Nullifire FS703 fire rated silicone sealant for suitable linear joints in comaprtment walls and floors. Enquire with Blazeout today.
October 20, 2026
Learn about Nullifire FB750 Intubatt coated fire batt for suitable service penetration firestopping systems. Contact Blazeout for product availability and pricing.
October 19, 2026
Discover Nullifire FF197 fire rated expanding foam for suitable firestopping applications. Enquire about Nullifire products and trade supply from Blazeout.