'Secret-Fix' Structural Bonding

Vertical application
Longer sizes available
Stainless steel Available
Wide range materials

'Secret-Fix' Structural Bonding system are designed using rails in a T & L geometry.

Where the board are joined together, the 110 mm faced T rail, provides the correct dimensions to all the major board manufacturers specification, relating to surface area in contact with the panel, and movement joint between the abutting panels. Depending on the material type, HPL / fibre cement panels require vertical support at 500mm to 600mm - for all vertical centre support generally use the L rail 51x61mm section.

Fischer have designed railing systems for use with the two market leading structural bonding brands:

Dowsil 896 has been CWCT tested, in conjunction with Fischer support substructure. The system involves Dowsil cleaner and wipe on clear primer used in conjunction with tested a RAL 9005 (black) vertical rails.

Sika Tack requires a mill finish vertical rail, which is designed for use with Sika cleaner and Sika black primer.


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  • Downloads
  • Approvals
  • Typical Façade Types
  • Technical Characteristics
  • Brochures and Catalogues

  • Approvals


    FischerBWM facade systems are designed and manufactured to Eurocode 9. UK accreditation approvals through the new Winmark Approval, by Wintech and the BBA are confirmation of Eurocode design and manufacture processes.


    UK accreditation

    Winmark Approval

    British Board of Agrément (BBA) – Stage 2 progressing


    European accreditation

    MPA National Technical Test Certification: FischerBWM aluminium profile sections in substructure systems and connections

    Certification Conformity Structural Components and systems for structures to EXV2 according to EN 1090-2, for load-bearing structures in all types of buildings

    Passivhaus Certification

    CE-Certification & QM-cert ISO 9001

    Environmental management standard ISO 14001

  • Typical Façade Types



    Composite mineral material

    Glass fiber reinforced concrete

    Aluminium composite material

    Metal sheet products

    Cement boards

    High Pressure Laminates (HPL)


  • Technical Characteristics


    Typical bracket configuration uses the Fixed Point bracket at the highest position on the vertical rail to support the façade vertical dead loads. The Sliding Point bracket is used typically on all other positions on the vertical rail to absorb the project wind loading. Bracket configuration is specified by FischerBWM engineering department. To submit your project specifics please go to Contact.

    FischerBWM design issued by Fischer Engineering department are covered by Product and design insurance

    System components available for AutoCAD downloads.

    RJ & Fischer offer a standard, available ex stock UK, range that covers most design requirements.

    All rails available to specific RAL colours in Qualicoat on an order to order basis.

    Bracket and rail systems from Fischer are interchangeable based on the project requirement. 'Helping Hand' brackets from SystemBWM ATK100 are the example in the image, the most cost effective bracket selection from the range. To achieve improved thermal performance to concrete substrates use SystemZeLa brackets.

    RJ & Fischer offer a standard, available ex stock UK, range that covers most design requirements. All rails available to specific RAL colours in Qualicoat on an order to order basis.

    Project thermal calculations to confirm insulation thickness available on a project by project basis.

    Fischer offer a full calculation service, please click the link for more information on this system.

    Material Specification


    Manufactured from extruded aluminium alloys conforming to EN 573-3 (material) and EN 755 production standards.