Restoration Mortar (RM)

Restoration Mortar (RM)

Remmers RM is used for restoring, supplementing and re-profiling mineral substrates such as natural stone, brick, concrete and synthetic stone.

This product is not available to buy online. Please contact us for pricing and more information.

€ 112.24 EUR
Every effort has been made to ensure the accuracy of our digital colours and textures however due to limitations with technology, we strongly advise purchasing sample products for testing in situ prior to the full order being placed.
All prices specified on our website include VAT. Contact our team for bulk pricing and trade discounts.
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Delivery Information

Unless otherwise specified all products within Ireland should be delivered within 2-3 working days. Please contact us for delivery options outside of Ireland or if you wish to ship to Northern Ireland.

Our stock is primarily shipped by Fastway or via the pallet network depending on the total weight of the order. The delivery method will be automatically assigned and priced at checkout. All delivery prices include VAT.

Main Purpose

Restoring, supplementing and re-profiling mineral substrates such as natural stone, brick, concrete and synthetic stone


Field of application

For use indoors and outdoors
  • Restoring, supplementing and re-profiling mineral substrates such as natural stone, brick, concrete and synthetic stone
  • Reproducing ornamental building elements in a tamping procedure


  • Low free alkali content
  • Good flank adhesion
  • Low inherent stress
  • UV-resistant pigments
  • Can be made hydrophobic

Product specifications

Flexural tensile strengthAfter 7 days: approx. 4 N/mm²
After 28 days: approx. 5 N/mm²

Compressive strengthNormal < 13 N/mm²
Soft < 8 N/mm²

E-modulus (DIN 1048)Normal approx. 11 kN/mm²
Soft approx. 7 kN/mm²

Maximum grain sizeFine 0.2 mm
Medium 0.5 mm
Coarse 2.0 mm

Bond strength (28 d)Approx. 0.5 N/mm²

Bulk densityApprox. 1.7 kg/dm³

Water requirementApprox. 0.65 - 0.85 l/5 kg
Approx. 1.95 - 2.5 l/15 kg

Shrinkage deformation DIN 52450After 7 days: approx. -0.3 mm/m
After 28 days: approx. -0.7 mm/m

The stated values represent typical product characteristics and are not to be construed as binding product specifications.


Substrate requirements

  • Clean, dust-free and capable of supporting a load.


  • Any necessary cleaning measures should be performed as gently as possible, e.g. by spraying with cold or hot water or steam cleaning; stubborn dirt should preferably be cleaned using the rotec soft blasting method or Remmers cleaning products (e.g. Clean FP, Clean AC basic, Clean WR).
  • Preserve valuable heritage ornamental elements and statues by carefully removing encrusted dirt and using the appropriate Remmers Stone Strengthener to carry out repeated intensive strengthening.


Application temperature: min. 5 °C max. 30 °C
Mortar cover / Filling knife / Trowel application
  • Apply a contact layer to the pre-wetted substrate using grout (dry mortar/water) in a layer thickness of approx. 2 mm.
  • Apply the mortar onto the contact layer wet-on-wet in layer thicknesses of 1.5 to 3 cm, 1 to 2 mm beyond what will become the final surface.
  • Joints in the masonry must be maintained.
  • Application of thin layers at the edges of defective areas can be facilitated by adding Remmers Haftfest to the mixing water (mixing ratio 1:10). In this case, hardening will be somewhat delayed but the bonding strength will be increased.
  • After sufficient hardening (when the grain pops), roughen the surface or scrape down to the final surface.
  • Rework the repaired areas (using a scraper or abrasion tool) onto the structure surrounding the defective area.
  • Wait at least 24 hours before applying subsequent layers.

Application instructions

  • Once it has hardened, mortar must not be made workable again by adding either water or more wet mortar.
  • The type and duration of the reworking and surface treatment will influence the colour.
  • Slight deviations in colour between different batches are possible.
  • Protect wet mortar surfaces against frost, rain and drying out too quickly for at least 4 days.

Working tools / cleaning

Mortar cover / Filling knife / Trowel application
  • Clean tools with water while the material is still fresh.

Storage / shelf life

Protect form moisture
Shelf-life 12 months
  • If stored in an unopened container and in a dry place, the product will keep for approx. 12 months.


Approx 1.6 kg / l void
  • Approx. 1.6 kg/l void
  • Apply to a large enough trial area to determine the precise amount required.