Additives for Custom Mortars

Our unique lime mortar additives are developed for lime mortar, limewash, and plaster/stucco. When it comes to restoration work on historic buildings, it is very important to get as close to the original material used as possible. Repairs should match the original work. If you need larger quantities of lime mortar additives and inclusions, please contact us!

Showing all 7 results

  • Horse HairHorse Hair

    Horse Hair

    has historically been added to Lime Plaster Basecoat that is being installed over wood lathe. 

     

    $20.00
  • Pozzolan for use in Lime Putty Mortar

    Pozzolan

    is a natural clay that when mixed with Lime Putty Mortar makes it hydraulic. Add pozzolan to mortar in areas of high exposure ie: chimneys and below grade applications.

    $20.00$50.00
  • Coarse Black Slag to add to lime mortar

    Coarse Black Slag

    add to Lime Putty Mortar, NHL, and Plasters to match or create a new unique product or finish! 

    $10.00$52.00
  • Fine Black Slag to add to Lime Mortar or plasterFine Black Slag to add to lime mortar or plaster

    Fine Black Slag

    add to Lime Putty Mortar, NHL, and Plaster to match or create a new unique product or finish! 

    $10.00
  • Extra Fine Black Slag to add to mortar or Finish Plaster!Extra Fine Black Slag to add to plaster or mortar

    Extra Fine Black Slag

    add to Lime Putty Mortar, NHL, and Plaster to match or create a new unique product or finish! 

    $10.00
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