Astroflame Passive Fire Protection Products

Trade Names: Astro Telescopic Letter Box

60 min Fire Rated Telescopic Letter Boxes

Outward facing brushes create the Anti-Vandal feature as it prevents vandals from placing unwanted items into the cavity.

Outwards facing brushes also means better draught proofing and makes it easier to post letters through.

180 degree opening flap means the flap will not snap off when opened too far.

Matt finished plastic frame conceals any scratches that may be caused by screwdrivers during installation.

High performance intumescent liner

Blind bolts to the exterior of the letterplate prevents the outer frame being unscrewed from the door externally.

An internal water seal prevents water getting into the door or panel, and stops letters getting wet.

Ultra-flexible springs can withstand the letterbox flap opening thousands of times without breaking.

Revolutionary Patent pending self-aligning screw boss makes screwing the inner and outer frames together easy.

Adjustable for 40mm - 80mm use on wooden and composite doors.

Fire rated for up to 60 minutes on wooden and timber doors.

Astro Eco Telescopic Letter Box in various colours

View a range of styles

>> See more : Additional product images

>> Call us to order: 01329 844 500

>> Email us to order:


The Astro Telescopic Letter Box 12 inch letterplate has many features not found on standard letterboxes, such as the trademarked Anti-Vandal facility. Each Anti-Vandal letterplate has outward facing brushes - This gives 3 great benefits:

  • 1 - Having brushes on the front of the door acts as a visual deterrent to vandals. As the internal cavity is not easily accessible, it makes it a lot harder to put lit fireworks etc. into the cavity.
  • 2 - It is easier for postmen to navigate letters through the brushes, so you won't end up receiving crinkled letters anymore.
  • 3 - The brushes stop draughts at the point of entry, making the letterplate draught-proof.

Another great feature is that each letterplate flap can open to 180 degrees, meaning that it should not snap, and making letterplate flaps snapping off a thing of the past. Many letterplates in the industry only open to 90 degrees, so when too much force is applied when lifting the flap up, it causes them to snap off. The ultra-flexible springs means that they can withstand thousands of openings without breaking, making them last even longer. Also, an internal water seal also prevents water getting into the door or panel, which stops letters getting wet as they are posted through, and also helps to prevent the flaps from pitting or rusting.

Intumescent Letterbox Dimensions

Product Availability

Availability in 3 finishes and comes with a lifetime coating guarantee!

Product Code





Telescopic Letterbox

300mm x 65mm

Gold Anodised


Telescopic Letterbox

300mm x 65mm

Mirror Polished


Telescopic Letterbox

300mm x 65mm

Satin Anodised

To Order & Specify

Please contact us and quote the following - Quantity / Product Description / Product Code / Colour / Size
Typical wording - 18 / AFLBFXC/60GA / Telescopic Letterbox / Gold Anodised / 300mm x 65mm

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


For further information on installation requirements please 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

Web Page


Astroflame (Fire Seals) Ltd. Intumescent House
Unit 8, The I.O Centre, Stephenson Road, Segensworth
Fareham, England PO15 5RU


Email Astroflame