Home > Companies > Selectaglaze Ltd > Series 43 Demountable Fixed Light

Heavy duty security demountable fixed light (DFL) secondary glazing. Slim, secure system offering increased security against intruder resistance and blast mitigation. Suitable for use in listed buildings due to smaller section size. The slim sections can be curved if required, making the system suitable for use in heritage environments.

Fitted with high performance brush seals that will almost eliminate drafts and ensure greater comfort near the window.

An aluminium subframe is permanently anchored to the reveal or wall face and a glazed frame attached with machine screws which are removable to allow the panel to be sleeved out for cleaning or maintenance.


Blast tested to ISO 16933 Classification code EXV 25.

Standard product features


- Material:

Extruded aluminium alloy 6063-T6.

- Style:




  • Sash, minimum (h x w): 300 x 300 mm.
  • Sash, maximum (h x w): 3000 x 2000 mm.
  • Curved head or jamb minimum radius: 750 mm.

Thermal performance:

Values of <2.9 W/m²K available; consult manufacturer for details.

NBS Specification

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This product is associated with the following NBS clauses:

Product specification

An important note about specifying



Selectaglaze Ltd


+44 (0)1727 837271

Product reference

Series 43 heavy duty security demountable fixed light (DFL)


As primary window designs/ sightlines


[As drawing]
Insert details.
[As schedule]
Insert details.

Acoustic performance

[ ______ ]

Thermal performance

[ ______ ]

Security rating

[Not required]
[LPS 1175 SR1]
[LPS 1175 SR2]


 - Finish:
[Anodizing, Analok bronze AA25]
[Anodizing, Analok silver AA10]
[Polyester powder-coating, HIPCA 9910 semi-gloss white]
[Polyester powder-coating, RAL]
Insert RAL colour.
[Wood grain effect]
 - Gloss level:
[Not required]
[High gloss]


 - Type:
[Laminated, low-E]
[Toughened, low-E]
 - Thickness:
[9.5 mm]
[11.5 mm]
[12 mm]
 - Gasket:

Trickle ventilators

[Not required]
[Over the frame acoustic ventilator]
[Over the frame standard ventilator]

Acoustic reveal linings

[Not required]
[Vinyl faced acoustic foam]

Manufacturer details

Alban Park,
Hatfield Road,
St Albans,
Hertfordshire, AL4 0JJ
Tel +44 (0)1727 837271
Fax +44 (0)1727 844053
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