The Kingspan K-Stop Large Fire Pillow (330mm x 200mm x 45mm) comprises a durable glass cloth bag tightly packed with high-grade organic fillers and expanding intumescent additives. It is engineered to create either a temporary or permanent fire barrier within structural wall voids, floors, and ceiling compartments.

This thick-profile "Large" pillow is the primary choice for filling substantial structural openings, oversized service voids, and heavy-duty cable ladder pathways. Because they require no messy mortars or adhesive sealants, they can be stacked quickly by hand, pulled out, or completely reconfigured as building services change over time.

Product Benefits

• Robust Protection: Delivers up to 2 hours of fire resistance to maintain compartment integrity.
• Fast, Reusable Install: Simple to tightly pack by hand into gaps; easily re-located or augmented during building refits.
• Moisture Resistant: Features a robust, waterproof facing suitable for harsh construction site environments.
• Maximum Coverage: The thick 45mm profile allows you to seal large geometric openings with fewer total pillows.

Technical Specifications

• Product Range: Kingspan K-Stop Passive Fire Protection
• Pillow Profile Size: Large (330 mm x 200 mm x 45 mm)
• Material: Woven glass cloth bag containing active intumescent expansion compounds.
• Colour: Grey
• Reaction Temperature: 180°C (Intumescent expansion activates)
• Service Temperature Window: Retains structural flexibility between 20°C and 130°C.
• Storage: Keep stored indoors within a cool, dry, and well-ventilated area.

(Note: If you require smaller or narrower profiles for tight spaces, view our separate listings for the Kingspan K-Stop Sausage and Small Fire Pillows).

Product Data Sheet Links
Technical Data Sheet
Kingspan K-Stop Product Pack

All orders are usually despatched within 24 hours of receiving cleared payment (Mon–Fri).

The above information is based on current test data, health and safety information and application instructions supplied by our suppliers and manufacturers of the products. It is supplied for guidance and to the best of our knowledge is true and accurate. Customers should satisfy themselves to the suitability of the products in its intended use and no guarantee is given or implied as the conditions of actual use are beyond our control. If in doubt the customer should consult the designer of the project or the local building control. 

Fire Stopping Shop, disclaim any liability for loss, damage or other expense which may arise from the use of this information, data or products refereed to and reserve the right to amend or change any details without notice. This statement does not affect your statuary rights.