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Promat VERMICULUX-S® Structural Steel Protection ST VLUX-004S

Name: Promat VERMICULUX-S® Structural Steel Protection ST VLUX-004S
Brand: Promat UK
SKU: hhUoeFyreZnKruhm5zXsX3

Verified by manufacturer 21 hours ago

Promat UK

Product certifications:

Certifire Certificate
Certificate type

Encasement system using non-combustible calcium silicate boards.

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0800 145 6033 Website

Application

For the protection of hot-rolled structural steel.
Suitable for semi-exposed and unheated spaces.

Description

Promat VERMICULUX®-S is a non-combustible calcium silicate board reinforced with selected fibres and fillers, is resistant to the effects of moisture and will not be subject to physical or performance deterioration when used in damp or humid conditions. The strong rigid board can be installed before the building is watertight. It is classified A1 non-combustible according to BS EN 13501-1. Promat VERMICULUX®-S is off-white in colour and has a smooth sanded surface on one face with a lightly honeycombed texture on the reverse face.

Up to 240 minutes of fire resistance can be achieved depending on the thickness of material used, the dimensions of the steelwork being protected, the number of layers used and the limiting temperature of the steel section.

General information

Color	White
Finish	Unfinished Painted
Material	Calcium silicate
Shape	Rectangle
Length	Bespoke
Width	Bespoke
Height	Bespoke
Warranty description	- Manufacturer guidance Etex Building Performance Limited warrants that our passive fire protection products and component parts, when installed in the building originally designed, built and unaltered in accordance with the conditions and procedures set out in this specification document and associated CAD drawings, the Vermiculux®-S Product Brochure; and any specific technical recommendations made in relation to the above project, shall be durable and free from defects due to faulty manufacturing or factory workmanship. The system must be installed by a 3rd party accredited fire protection contractor, and where included in the specification, solely with proprietary products and components as supplied by Etex Building Performance Limited. The scope of this warranty will be dependent on the application and the environment in which the products are being installed.

Uniclass	Ss_25_25_45_68 Rigid sheet casing systemsPrimary
CAWS	K11/54 Fire protection board K11/885 Fire protection board

Specification data - Rigid sheet casing systems

Classification data
Support	- Manufacturer guidance For beam widths over 325 mm, use minimum 25 x 25 x 25 x 0.65 mm Z-sections at maximum 610 mm centres to support soffit boards, fixed with 3.7 mm x 16 mm Shot-fire nails or M4.2 x 13 mm self-drilling self-tapping wafer head screws at maximum 300 mm centres.
Insulation	Low density (10–30 kg/m³) glass mineral wool. Guidance for specification option: If required for acoustic or thermal performance.
Linings	Inner and outer layers: Promat VERMICULUX®-S board thickness determined by section factor (A/V), fire resistance period and limiting steel temperature. Guidance for specification option: Minimum Promat VERMICULUX®-S thickness for compartmentation on both sides of steel (when 1 sided fixing detail is applied to both sides of the steel): 60 minutes: 20 mm, 90 minutes: 25 mm, 120 minutes: 30 mm, 180 minutes: 40 mm, 240 minutes: 50 mm. Where protection to the structural steel and compartmentation are required, thicker of the two boards should be used. Insert requirements. Manufacturer guidance Maximum board length 1200mm. For double layer encasements the thicker board should be applied as the inner layer and joints between layers must be staggered by minimum 600 mm. Boards can be left untreated or painted. Board thicknesses over 40 mm are installed as a double layer, minimum stagger between layers 600 mm. Refer to ST VLUX 008 for double layer encasement details. Where more than one layer of board is used in a casing, the thicker layer should be applied first.
Fasteners	Direct Fix to Structure Through Packers: Minimum M4 screws into metal plugs, non-combustible concrete anchors or concrete screws (by others). Fixing to Coverstrips: Minimum M4 High Thread Screws. Guidance for specification option: Direct Fix to Structure Through Packers: Minimum M4 screws into metal plugs, non-combustible concrete anchors or concrete screws (by others) at maximum 300 mm centres. Fixing length to provide minimum penetration of 30 mm into the substrate. Fixing to Coverstrips: Minimum M4 High Thread Screws at maximum 200 mm centres. Screw length to provide minimum penetration of 15 mm into the coverstrip.
System accessories	FSi Promat Pyrocoustic® Fire Resistant Sealant. Guidance for specification option: Designed to seal any slight gaps at interfaces between the boards and the substrate, which have low movement requirements (±7.5%). Contains no solvents or halogen compounds.
Fire resistance	- Manufacturer guidance Fire Resistance (minutes) to BS 476-21. Insert requirements.
Colour/ Finish:	Decorative. Guidance for specification option: Decorative finishes should be applied in accordance with Promat Technical Data Sheet TDS 056 (https://www.promat.com/en-gb/construction/documentation/) and the Promat Passive Fire Protection Handbook (https://www.promat.com/en-gb/construction/tools-services/fire-protection-handbook/). Non-decorative. Guidance for specification option: Boards can be left untreated or painted.
Section factor	Maximum 275 m-1.
Steel sections	380 mm wide (maximum). Guidance for specification option: 1 Sided Beam Protection up to 380 mm Wide. Direct Fix to Structure Through Packers.
Strips	Coverstrips: 20 mm thick x 120 mm wide Promat VERMICULUX®-S coverstrips fitted behind all board joints.
Packer	Promat VERMICULUX®-S. Manufacturer guidance Where the steel flange is offset from the substrate, boards can be installed using a packer to either side of the exposed flange.
Third-party certification	Certifire Certificate of Approval no. CF5757. Guidance for specification option: As detailed in Certifire Certificate of Approval no. CF5757. NOTE: Depending on site conditions, alternative fixing methods may be required for beams and columns, 1 or 2 sided exposure or interface with other building elements. These fixing methods are outside the scope of current EN test methods. These recommendations are based on the principles of EN 13381-4 and given in good faith. They should be approved by the responsible designer or through independent 3rd party assessment.

Sustainability data

Country of material origin	Belgium
Country of product manufacture	Belgium Manufacturer guidance Applies to the bulk board material only. Other components are from other countries. Consult manufacturer for details.
Material	Calcium silicate
Recyclability	Gypsum, calcium silicate and metal components can be recycled depending on the segregation of all materials.
Recycled content As defined in clause 7.8 of BS EN ISO 14021	2.8 %