Design - Mortar Selection

Application

Type of Lime

Notes

Pointing

Tŷ-Mawr Premixed Lime Mortar

(External/Internal)

• The time of year and weather conditions should be considered when using Fat Lime Premixed products.
• Range of 10 colours available

Fat Lime Putty & Aggregate

(External/Internal)

• The time of year and weather conditions should be considered when using Fat Lime Premixed products.
• 3:1 Ratio (Aggregate : Lime)
• Range of 10 colours of aggregate available

Natural Hydraulic Lime & Aggregate

NHL2 (External/Internal)

NHL3.5 (External - Exposed locations)

• 2.5:1 Ratio (Aggregate : Lime)
• Range of 10 colours of aggregate available

Building

Stonework/

Brickwork

Natural Hydraulic Lime & Aggregate

NHL2 (External/Internal)

or

NHL3.5 (External - Exposed locations)

• 2.5:1 Ratio (Aggregate : Lime)
• Range of 10 colours of aggregate available

St. Astier EcoMortar (C)

(Dry Hydraulic Premix)

• Premixed in the bag, water just needs adding on site.
• Bright white in colour

Secil Cal RJ

(Dry Hydraulic Premix)

• Premixed in the bag, water just needs adding on site.
• Beige in colour

• To match an existing mortar, send a sample to us.
• The colour, texture, workability and success of the mortar is predominantly influenced by the selection of sand/aggregate.
• The softer the stone/brick, the softer the mortar should be.

Stone Tiles

Bedding (<20mm)

Secil Adhere Cal

(Dry Hydraulic Premix)

• For thinner tiles internally, use: Adhere Cal for tiles less than 20mm thick.

Flag Stone

Bedding (>20mm)

Hydraulic Lime & Screeding Aggregate

NHL3.5 or NHL5

• 3:1 mix ratio.
• Thickness of bedding mortar will vary depending on flagstone thickness.

Paving

Copings

Chimneys

Hydraulic Lime & Aggregate

NHL5

• 3:1 mix ratio.
• For exposed areas, or any high weathering applications.
• For these extreme areas ensure work is done as early as possible in the year as soon as danger of frosts are over.
• Drainage of paving areas is paramount.

*It is important to choose a sharp, well graded, well washed sand.

NHL = Natural Hydraulic Lime