Great Gatehouse, Hampton Court

Bedding & Pointing Mortar (Coarse Stuff)

RJ2.01

Non-hydraulic lime putty mortars produced from 6 month mature mortar grade Chalk lime putty mixed with sands and stone-dusts normally at a ratio of 1:2.5 or 1:3 by volume. Standard + Special + Matching mixes available.

Environmental Considerations: 

Lime Putty mortar is an environmentally sustainable product.

Usage/Purpose: 

For bedding and pointing stone and brick where a traditional soft, porous, permeable mortar is appropriate.

Shelf Life: 

Unlimited. Matures with age. Lime putty mortars stiffen during storage, but can be plasticised without the addition of water by thorough re-mixing.

Coverage: 

Bedding: c.800 – 1000 bricks/ tonne (225mm brickwork) 4m2/ tonne (450mm rubble stonework) Pointing: 100m2/ tonne (brickwork) 40m2/ tonne (random rubble stonework)

Availability: 

Heat-sealed bags (c.25kgs, 40/tonne); 15 litre tubs (c.28kgs, 36/tonne) Bulk bags (c.1 tonne) Standard mixes normally ex stock. Special & matching mixes mixed to order.

Health & Safety: 

See Health and Safety Data Sheet RJ 5.02.

SAFETY CALCIUM HYDROXIDE Ca(OH)2 Alkali (pH 13).

CAS No 1305-62-0.

EINECS No 215-137-3.

Danger: H318 Causes Serious Eye Damage.

Warning: H315 Causes skin irritation.

Technical Advice: 

See TGN 4 - Use of Lime Putty Bedding + Pointing Mortars

Observations: 

Tradesmen familiar with the use of lime putty mortar, and with experience of its successful use should be employed. Non-hydraulic lime mortars do not perform as modern hydraulic lime and cement, and set only by reaction with atmospheric carbon dioxide in the presence of moisture. This ‘carbonation’ is a slow process and control of the drying and curing process by ‘tending’ and protecting is crucial to success and long-term performance. Protections are essential. Do not use below a temperature of 5°C or above 25°C. Do not use if there is risk of frost.