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25mm PROMATECT 250 Calcium Silicate Board Promat

25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
  • 25mm Promat PROMATECT 250 Fire Protection Board
  • A1 non-combustible low density calcium-silicate insulation board
  • PROMATECT®-250 is made with special PROMAXON® technology
  • Used for protection of steel structures and mezzanine floors
  • Provides up to 150 minutes fire protection to structural steelwork
Estimated delivery:
In Stock
£ 323.34
Ex VAT: £ 269.45
  • Brand: Promat®
  • Model: 25mm Promat PROMATECT 250
  • Weight: 56.25kg
  • Dimensions: 2,500mm x 1,200mm x 25mm
  • SKU: 25mm PROMATECT 250
  • Product code: P1-2623
  • MPN: 25mm Promat PROMATECT 250

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25mm PROMATECT® 250 Promat is a non-combustible mineral bound lightweight board, designed to provide a high degree of strength, dimensional stability and up to 150 minutes fire protection to structural steelwork and mezzanine floors.

Promat PROMATECT 250 is a 25mm thick, 2500mm long by 1200mm wide calcium silicate fire insulating board with ability to receive almost any form of architectural finish treatment.

One face of the Promatect 250 board is smooth and ready to form a finished decorative surface, and the reverse face is sanded.

PROMATECT 250 Fire Protection Boards are used mainly in interior building applications where normal to high levels of fire resistance are required.

The boards are intended for the manufacture or cladding of building components, for filling aluminium/steel profiles and for fire protection of ducts.

22mm PROMATECT-250 is resistant to the effects of moisture and will not physically deteriorate when used in damp or humid conditions, and performance characteristics are not degraded by age or moisture. 

However, PROMATECT® 250 is not designed for use in areas subject to continual damp or high temperatures, and designed for internal applications only.

Promat Promatect 250 fire protective board can be cut and machined using conventional woodworking tools/equipment.

Fixing the boards will depend upon the application and bearing structure, usually the boards can be installed using screws or glues.




Thickness: 25mm

Width: 1200mm

Length: 2500mm

Board Coverage: 3.00m2

Thermal Conductivity: 0.189 W/mK (at 20ºC)

Colour: off-white

Density: 750kg/m³

Fire Rating: A1 Non-combustible

Fire Protection: 150 minutes

Reaction to Fire: Class 1 (Surface Spread of Flame)

Resistance to Fire: Class 0 (Building Regulations)


Promat PROMATECT 250 Calcium Silicate Board Features:

 · Made with PROMAXON® technology.

 · Easy to decorate

 · Moisture resistant.

 · Dimensionally stable.

 · Lightweight fire protection board

 · A1 Class, Non combustible.

 · Provide a high degree of strength.

 · Will not deteriorate, when used in damp or humid conditions,

 · Does not encourage mould growth.

 · Easy to cut and machined using conventional tools.

 · Resistant to attack by insects or vermin.

 · Chemically inert and is resistant to dilute acids and alkali.

 · Performance characteristics are not degraded by age or moisture.

 · For Fire Protection of steel structures and mezzanine floors.     

 · Provides up to 150 minutes fire protection to structural steelwork.


*Further information may be found in our Downloads section.

Fairly easy access to all PDF files.

Datasheet ǀ Declaration of Performance - DoP ǀ BBA Certificate ǀ Installation Guide ǀ Certificates ǀ Brochure ǀ SPEC Sheet

Board covarage 3.00 m2
Colour Off White
Density 750kg/m3
Length 2500mm
Material Fire Protective Board (calcium-silicate)
Profile Square Edge
Size 25mm x 1200mm x 2500mm
Thermal Conductivity 0.189W/mK (at 20 ºC)
Thickness 25mm
Water Vapour Resistivity 20μ
Weight/m2 18.75kg
Width 1200mm
Fire Classification A1, Non-combustible
Building Regulations Class ‘0’ to UK Building Regulations
Fire performance up to 150 minutes (A1)
Finish Front Face Smooth | Back Face Sanded
pH Value Alkalinity (Approx.) pH 9
Application Temperature from +5 °C to +25 °C
Shipping method Articulated Vehicle ǀ Courier
Applications Fire protection of steel structures and mezzanine floors
Decoration Can accept almost any form of finish treatment
Features Provides up to 150 minutes fire protection
Manufacturer Promat PROMATECT®-250 PROMAXON®

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We deliver insulation materials to Mainland UK only. Deliveries to Highlands, Northern Ireland, Isle of Wight etc.. might be possible at additional cost.
We offer free delivery on most of the orders above £300 (excluding VAT) (except special products - shipping cost via courier - products marked ''Request A Quote'')

Delivery of some insulation materials might be extended due to the current situation (Covid-19, stock shortages, allocations).
If you need materials quickly please contact us - we will do our best to help you source materials needed.

We do not deliver on weekends and bank holidays. Sometimes we can deliver on Saturdays - please check with us before placing the order.
If you need any further information please contact us tel. 02081910776

We can help to calculate price per m2 or linear meter (one meter in length) cost, please just contact us via phone 02081910776, email or live chat. Alternatively, you can work it out yourself quickly and easily: to get cost per meter square please divide price shown in orange area by ''Required area (m2)'' Example price of £28.80 divided by board coverage 2.88m2 = cost of £10.00 per m2.


No matter whether you choose a local installer or a national company, there’s a few tips to help you find the right installer for your home insulation improvements, such as asking for recommendations and making sure that they’re part of a certification scheme. This makes sure that they have the right skills and standards of workmanship to carry out the installation, and you can be sure that they know exactly what they are doing.


1. Thermal inspection picture in portfolio

It’s worth seeing a installer’s previous work. There’s no harm asking if you can see any properties nearby that they’ve installed insulation in. Best way would be to see Infrared Thermal Imaging Inspections. Thermal cameras spot small, but key changes in temperature in different areas of a house, identifying problematic areas that the human eye never could and some that a visual inspection could only hypothesize.

2. Reviews

Along with checking recommendations and previous work, finding reviews online can often be a great way to find out if they provide a good service or not. However, it’s best not to solely rely on reviews you may find or review websites, as there’s no controlling who writes them.

3. Compare prices

Comparing prices will also ensure companies can’t take advantage of you and give you a fair price. 

4. Word of Mouth

The best way to find a great insulation installer is through recommendations. Make sure you ask friends and family. They will most likely give you their honest opinion and can tell you from first hand experience.


Whether you require a wall, cladding, external wall, loft or floor insulation fitted, you can find and hire your local insulation installers from popular UK web pages. A simple internet search will return thousands of potential installers near your area.



We are the stockist of construction materials and related products for both trade and DIY from most recognizable brands in the UK like Cordek, RCM, Promat, Rockwool, Isover, Celotex, Xtratherm, Ursa, Low-E, Cedral, Kingspan, Dufaylite, British Gypsum, K-rend, Ecotherm, Iko enertherm, Kay-Metzeler, Terrawool to allow you to complete your insulation job on time at competitive prices and the highest standards.


Whether you are a large company or a DIYer, if you need a large amount of insulation materials, we can offer quantity discounts at the best prices. Please contact us and our friendly customer service will try to find the best and cheapest solutions for you. We value your time and we will try to deliver the products as soon as possible at a reasonable price to your construction site or house. The UK's leading insulation supplier near you and your needs. Price List available upon request.
25mm PROMATECT 250 Calcium Silicate Board Promat
25mm PROMATECT 250 Calcium Silicate Board Promat
£ 323.34