Astroflame Passive Fire Protection Products

Trade Name: Astro FS Block

Fire Stop Block

Tested to BS EN 1363-1:1999
for up to 2 hours

Compressible material for simpler installation

Only min. 10% compression required

Can be cut to any required length(s).

Red coating provides easy recognition

Easy to add and remove

Square edges are easy to stack

No overlapping required - lower cost

Can be installed from one side

150mm length can provide a clean wall solution

Astro FS Block at Astroflame

View a range of styles

>> See more : Additional product images

>> Call us to order: 01329 844 500

>> Email us to order:


Fire Stop Block is a unique, compressible and fully intumescent alternative to fire pillows.

FS Block can be supplied in up to 1 metre lengths and can be cut to size on site. This ensures maximum flexibility and minimum wastage.

The material can be installed within and around various electrical penetrations and provides up to 120 minutes fire rating.


Available in 1 metre lengths in any quantity.

Product Code

Product Description



Astro FS Block


To Order & Specify

Please contact us and quote the following - Quantity / Product Code / Product Description / Size
Typical example:- 10 / AFFSBLOCK / Astro FS Block / 30x150x1000mm

>> Tel: 01329 844 500 or >> Email:

Test and Assessment Reports

Tested to BS EN 1363-1:1999 for up to 120 minutes
Test Report No: IF011059 Chiltern Int. Fire
EI120 on up to 100x100mm PVC Trunking
EI120 on up to 150x150mm Steel Trunking
E120 on Cable Basket and various Cable Types

For specific fire insulation ratings contact Astroflame


For further information on installation requirements please review the installation video or contact the technical team on: tel 01329 844 500 or email

Health and Safety

The product does not present any known health hazards during or after installation. Normal good industrial and personal hygiene practices should be observed. For further information on health and safety requirements please contact the technical team on: tel 01329 844 500 or email

Astroflame (Fire Seals) Ltd. Intumescent House
Unit 8, The IO Centre, Stephenson Road, Segensworth
tel 0800 023 2482
(01329 844500)
fax 0800 023 2483
(01329 844600)
tel +44 1329 844500
fax +44 1329 844600



Email Astroflame