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6mm RCM Siltech Fire Rated Calcium Silicate Flexible Board

6mm RCM Siltech 60-120 minutes Fire Rated Calcium Silicate Flexible 2400mm x 1200mm Board
6mm RCM Siltech Fire Rated Calcium Silicate Flexible Board
  • RCM Siltech Fire Rated Flexible Board
  • Improved strength and density
  • Unique fibre reinforced formulation
  • Provides 60 to 120 minutes fire rating
  • Extensive range of fire rated applications
Estimated delivery:
In Stock
£ 89.88
Ex VAT: £ 74.90
  • Brand: RCM®
  • Model: 6mm RCM Siltech
  • Weight: 23.07kg
  • Dimensions: 2,400mm x 1,200mm x 6mm
  • SKU: RCM Siltech 6mm
  • Product code: P1-2415

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6mm RCM Siltech Fire Rated Calcium Silicate Board is a non-combustible flexible calcium silicate fibre cement board which provides 60 to 120 minutes fire rating and superior workability due to a unique fibre reinforced formulation.

RCM Siltech 6mm can be used in an extensive range of applications from fire rated partitions, non-combustible ceiling tiles, boiler encasing, door lining, timber frame fire rated floors/ceilings as well as an extensive range of OEM applications.

Fire Rated RCM Siltech 2400mm x 1200mm Board has been tested by Exova for 60 and 120 minutes fire rated partitions in accordance with BS 476 Part 4 Non-Combustible, BS 476 part 21 and BS 476 part 22 fire rated through wall solutions.

RCM Siltech is an easy to install fire board that can be drilled, screwed and nailed with conventional hand tools.

Benx RCM SILTECH has a smooth front face and textured back face, the smooth face should be fixed outermost.




Thickness: 6mm

Width: 1200mm 

Length: 2400mm

Board Coverage: 2.88m2

Density: 1150kg/m3

Thermal Conductivity: 0.25W/mk

Bending Strength: 8 N/mm2

Surface Front Face: Smooth

Surface Back Face: Textured

Durability (Life Expectancy - Minimum): 30 years

Steel Frame Fixing: 4.8mm x 38mm Wing tip self drilling

Timber Frame Fixing: 4.2mm x 42mm Climaseal self drilling

Fire Reaction: BS 476 Part 4 Non-Combustible, BS 476 part 21, BS 476 part 22 fire rated through wall solutions, Tested by Exova for 60 and 120 minute partitions.


Key points:

 · 60 to 120 minutes fire rating.

 · Fire rated to BS 476: part 4 non-combustible.

 · Wide range of thicknesses.

 · Highly flexible.

 · Dimensionally stable.

 · Extensive range of applications.

 · High levels of workability.

 · Integrates with other RCM products.


Key applications:

 · Partitions.

 · Walls.

 · Flooring.

 · Ceilings.

 · Ceiling tiles.

 · Door panels.

 · Boiler encasing.

 · OEM applications.

 · Other applications for improved strength and density.


*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 2.88 m2
Density 1150kg/m3
Length 2400mm
Material Calcium Silicate
Profile Fire Rated Non-combustible
Thermal Conductivity 0.25 W/mk
Thickness 6mm
Width 1200mm 
Fire Reaction Non Combustible
Coverage 2.88m2
Fire performance Fire Rated 60-120minutes
Finish Smooth | Textured
Durability Minimum 30 years
Steel Frame Fixing 4.8mm x 38mm Wing tip self drilling
Applications Construction ǀ Extensive range
Fixing method Self Drilling Fixings
Features Provides 60 to 120 minutes fire rating
Manufacturer RCM Siltech®

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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.
6mm RCM Siltech 60-120 minutes Fire Rated Calcium Silicate Flexible 2400mm x 1200mm Board
6mm RCM Siltech Fire Rated Calcium Silicate Flexible Board
£ 89.88