Hydraulic Lime Binders

Why Use Hydraulic Lime Binder?

Natural hydraulic lime has been used as a binder for brick, stones and masonry for thousands of years. Before 1900 nearly all buildings constructed across Europe will have been built using lime, and many parts of Europe are still using it in New builds today. One of the main benefits is it reduces green house gas effect due to reabsorbing over its lifetime of the mortar, thus being close to carbon neutral.

NHL 5 Eminently Hydraulic Lime Mortar

Benefits Of Natural Hydraulic Lime Binder

Lime & cement when used in construction both provide the same purpose of joining brickwork together. However, lime mortar has many advantageous properties over cement; It is weaker than the bricks, masonry and stones, yet it is able to support the full weight of the structure. As a result this gives the building the ability to flex and move without the purpose of movement joints. There are many other benefits for using it too.

lime mortar Reduces the need for expansion joints
  • Reduces the need for expansion joints
  • Uses less energy to produce than cement
  • Consistent quality and colour of mortar
  • Re-absorbs CO₂ when it cures and sets
Breathable lime mortar wall
  • It can be produced as and when needed
  • Provides a breathable form of construction
  • Deterrent against pilfering and reduction in wastage
  • Aesthetically enhances masonry
lime mortar water shedding barrier
  • Provides a water shedding barrier for walls
  • No need to allocate one individual for mixing
  • Allows masonry to be recycled at end of life
  • It can be re-worked for up to 24 hours

Otterbein Natural Hydraulic Lime

Our range of Otterbein hydraulic lime binders can used for lime render, lime plaster and lime mortar. Otterbein hydraulic lime binders use the highest quality lime and designed specifically for listed buildings and conservation projects to give you the best authentic restoration finish.

NHL 2 Feebly Natural Hydraulic Lime
Feebly Hydraulic Lime Mortar Stone Wall Web

NHL 2 Feebly Hydraulic Lime is the softest of the three strengths which has the slowest setting speed and is mainly used with soft or deteriorating bricks and stones.

NHL 3.5 Moderately Natural Hydraulic Lime
NHL 3.5 Moderately hydraulic Lime Mortar

NHL 3.5 Moderately Hydraulic Lime can be used for permeable masonry materials which is mainly used above ground. Generally, it is used for bricks, facings, commons, blockwork, bedding, sandstone, limestone, flint, terracotta, cavity and solid walls, pointing or repointing.

NHL 5 Eminentely Natural Hydraulic Lime
NHL 5 Eminently Hydraulic Lime Mortar

NHL 5 Eminently Hydraulic Lime is commonly used for the foundations of buildings, coastal locations, or for parapets, coping’s and chimneys in external areas.

Tradical Hemp Binder

Tradical Hemp Binder is a special lime binder design to be used with hemp shiv for mainstream construction. Hemp binder is very unique compared to other building materials due to its ability absorb CO2 throughout the building’s life, making a significant contribution to combating global climate change. The overall CO2 balance for Tradical hemp binder and lime products is such that captured carbon is retained within the fabric of a building.

Tradical hemp binder bag
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