Instarmac UltraCrete QC10 Rapid Strength Concrete


Designed for thick section repairs, haunching reinstatements, ironwork backfilling and commerical sign/post installation.

  • HAPAS Approved since 2005
  • 20N/mm² compressive
  • Rapid set: 10-20 minutes strength in 2 hours
  • Open to traffic: 2 hours • Shrinkage compensated
VAT excluded

£24.18 Tax incl.


Instarmac UltraCrete QC10 Rapid Strength Concrete

QC10 is a rapid setting concrete designed for thick section repairs, haunching reinstatements, ironwork backfilling and commercial sign/post installation. It has been HAPAS approved since 2005 and can be opened to traffic in 2 hours.

  • Workability: 5 – 10 minutes
  • Set time: 10 – 20 minutes
  • Depth: 30mm – 250mm
  • 20N/mm² compressive strength in 2 hours
  • Can be bulked out in certain applications (may affect performance)
  • Approved for use on the London Underground and Overground


QC10 is ideal for haunchings, commercial sign/post installation and ironwork backfilling


QC10 contains special cements and graded aggregate, the product requires only the addition of water on site to form a high strength concrete. UltraCrete QC10 is suitable for applications from 30mm - 250mm in one pass.


All surfaces should be free from oil, grease, dust or any other visible contaminants. Remove all loose particles and work on a sound substrate. (Pre-soak the area with clean water prior to application to aid bond. Remove ponded water before applying the product).

Full preparation and mixing instructions can be found on the product data sheet.

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Product Details

Data sheet

1 Part
Key Features
Workability: 5 – 10 minutes. Set time: 10 – 20 minutes . Depth: 30mm – 250mm 20N/mm² compressive strength in 2 hours. Can be bulked out in certain applications (may affect performance). Approved for use on the London Underground and Overground
1m² @ 12mm approx
Compressive Strength (at 20°C)
1 hour 12.00 2 hours 20.00 24 hours 30.00 7 days 40.00 28 days 50.00
Shelf Life (from date of manufacture)
Shelf life from date of manufacture in correct conditions for sealed packaging is 8 months.

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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