Great Gatehouse, Hampton Court

Superfine Lime Putty

RJ1.01

Non-hydraulic superfine lime putty slaked from fine grade quicklime. The putty is matured for a minimum of 12 months. Two superfine grade putty types are available – a pure white Buxton putty and a cream coloured Singleton Birch putty. Singleton Birch mortar grade ‘Chalk Lime Putty’ also available (RJ 1.08)

Environmental Considerations: 

Lime Putty is an environmentally sustainable product made from natural ingredients. It contains no VOCs and no petrochemical products.

Usage/Purpose: 

Used in fine finish top-coat lime plasters when it is mixed with a fine sand normally at 1:1 or 3:2, and for lime/gypsum blend finish plasters. Superfine grade putty is used in the manufacture of Sheltercoats (RJ 3.07) and can be diluted with water and used as an internal limewash. Superfine lime putty is used in Conservation mortars (RJ 2.07) and ‘fine conservation’ generally.

Colours: 

Mortar colour is determined by the sand or aggregate mixed with the putty.

Shelf Life: 

Matures and improves with age when kept in sealed containers Protect from frost.

Availability: 

Chalk lime putty is available in 15 litre (c.21kgs) tubs. Buxton Lime Putty is available in 20 litre (c.28kgs) tubs. Ex-Stock

Health & 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.

STOT SE3 H335 May cause respiratory irritation.

See Health and Safety Data Sheet RJ 5.01.

Observations: 

Tradesmen familiar with the use of lime putty, and with experience of its successful use should be employed. Accurate volumetric site mixing is essential. Non-hydraulic limes do not perform as gypsum plaster or modern hydraulic lime. Non-hydraulic lime sets only by reaction with atmospheric carbon dioxide in the presence of moisture. This ‘carbonation’ is a slow process and control of the drying and setting process by ‘tending’ and protecting is crucial to success and long term performance. Protections are essential. Do not use in temperatures below 5°C or above 25°C. Protect from frost.