Lime Restoration Mortars -Tough Stone is a high strength repair mortar composed of hydraulic lime, aggregates, binders and sand, specially formulated for repairing hard stone.

Available in a wide range of colours.

For repairs up to 100mm.

Suitable for use on interior and exterior applications.

Natural Lime Tough Stone Repair Mortar was developed for the repair and restoration of hard natural stone. This ready to mix, mineral repair mortar is can be used for repairs up to 100mm and can be remodelled for up to 48 hours. For use on both internal and external applications.

  • High strength
  • Vapour permeable
  • For repairs up to 100mm
  • Wide range of colours
  • Accurate colour selction using Colour Sample Boxes
  • Highly suited to restoration projects
  • Available in a range of sizes and colours
  • Supplied ready to use. Just add water.
More Information:

Please note that on application, the wet mortar will appear darker than it will be after curing. Depending on weather conditions, the initial cure will take up to 72 hours, with full curing taking up to 28 days. An example of this can be seen in the image below.

Brick Repair Curing Example 800px

Colour Matching

Due to variations in devices and display screens, it is not possible for us to give accurate brick colour matching recommendations from online images or photographs.

For assistance in colour matching please complete the form below and send a small sample of the material that you are trying to match, and we will provide the closest match from our standard colour range.

Simply send a small piece of each colour brick that you wish to match (at least the size of a 1p coin) with your full contact details to:

Steadfast Specialist Products, The Yard, Orchard Cottage, Cary Fitzpaine, Somerset, BA22 8JB

Note – Please ensure that you include sufficient postage to cover the cost of delivery. Generally the cost of sending a large letter with the Post Office

*** For trade customers we highly recommend that you initially purchase the Stone Repair Colour Sample Boxes ***

Click HERE to view.

Bespoke Colour Matching

If we are unable to match your sample from our standard colour range, it might be possible to create a custom colour specific to your needs. Please call to discuss timing, costs and minimum order quantities.



Product Specifications

Technical Characteristics

Dry Densiry
1200 to 1300 g/L
Wet Density
1600 to 1700 g/L
Compression strength at 28 days
12 to 15 MPa
Flexural Strength at 28 days
4 to 6 MPa
Elasticity Modulus
13000 to 15000 MPa
<0.9 mm/m
Vapour Permeability
15 μ
Granulometry max.
0.02 - 0.04 kg/m2 .min1/2

Trade Enquiries

Please call to discuss your requirements. Discounts are available for bulk orders and for Steadfast Registered Installers.

Same Day Dispatch

If you order before 10am on any week day we will endeavour to dispatch your items on the same day via your chosen shipping option. Please note that this may not be possible for larger items.

Customer Support

We are here to help and advise you. Please call for support, email us with your enquiry or use the live chat facility.