Astroflame Passive Fire Protection Products

Trade Name: Astro TDW

Thermal Defense Wrap

Fire resistant wrap for pipes and cables.

Fire resistance testing to EN 1366-3 EI 120.

Fire Classification to EN 13501-2.

Tested in block wall, concrete, masonry & plasterboard partition.

Tested in concrete floors.

Tested in large service openings.

Tested with metallic pipes, cables, cable bunches, cable trays and cable ladders.

Remains flexible between -10 to +160°C.

Continued flexibility without ageing.

Quick and easy to install.

Easy to wrap, shape and cut.

High level of insulation, high temperature stability.

Certifire Accreditation

Certifire 3rd Party Accreditation

Pipe fire protected with Thermal Defense Wrap.

Thermal Defense Wrap fitted to cable tray.


Thermal Defense Wrap prevents the passage of fire and smoke between fire rated compartments where there is a service penetration.

It is an easy to use product designed to maintain necessary insulation on services and prevent temperature rise of service on the cold face.

The wrap remains flexible at normal temperatures to permit thermal and mechanical movement of the services without causing cable to overheat and deteriorate. It causes no known adverse effects to plastic pipes, plastic cables, sheathing or metallic components.

Thermal Defense Wrap is based on ceramic technology with bio-soluble, vitreous fibres and flexible organic binders that will maintain compartmentalization for up to 2 hours.

Tested in concrete floors. Tested in large service openings.

Highly flexible and water resistant. Halogen free, resists fungi and vermin.

For installation a 300mm length is required on each side of the service.



6mm thickness

Sheet Size

300mm wide x 1000mm long x 6mm

We can supply in different roll sizes or cut to size


180Kg/m³ - 250Kg/m³


White & Silver

Alufoil Thickness

0.25mm Nominal

Fire Resistance

2 hours – EN1366:3 2009

Fire Classification



Cables, Metallic Pipes, Cable Trays, Cable Ladders


Can be used around Armaflex type products

Thermal Conductivity (U Value)


Acoustic Performance


Shelf Life

36 months from date of manufacture.

Installation Notes

Use rubber gloves and protection to avoid skin and eye contact.
Cut strip to suit service circumference.
Wrap around the service.
Apply Resin Extreme Glue or Foil tape to fix to service.
Maintain record of installation.

Thermal Defense Wrap is not affected by an outdoor environment once installed and sealed. However, for long
term storage and ease of installation it is recommended that it should be stored indoors, ideally in dry conditions.
Ideal storage temperature between -5°C and +25°C.

Availability & Packing



Product Code

Astro TDW

300mm wide x 1200mm long x 6mm


Astro TDW

Customer Specified


To Order & Specify

Please quote - Quantity / Trade Name / Product Ref.
Typical example:-
10 / Astro Thermal Defense Wrap / AFTDW

Fire Test or Assessment Reports

Fire resistance testing to EN 1366-3 EI 120.
Fire Classification to EN 13501-2.
Certifire 3rd Party Accreditation

Environmental Impact

Low VOC (air quality).
No Power Tools required for installation (no energy source required).
Dust free.
Low Ozone Depletion Potential (ODP).
Low Global Warming Potential (GWP).
No water pollution.
Smoke and Air Tightness.
Noise Reduction.
Thermal Insulation.
Recycling of Packaging.
Avoidance of Air Filtration.
Does not emit halogenated by-products.
Contains no raw materials known to have an estrogenic effect.
The life cycle of Thermal Defense Wrap is over 25 years.

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



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