K Lime Basecoats, Finishes & Mortars

Our K Lime Basecoats, Finishes & Mortars offer a range of renders to suit the needs of your period project.

K Lime Roughcast

K Lime Roughcast is used in plastering to provide a wet dash or Roughcast finish.

It is prepared by blending K Lime Roughcast Binder with 4-8mm Limestone chips in the ratio 2 parts binder to 1 part limestone chips.

This is applied as part of a K Lime rendering system, typically on top of a K Lime Finishing 112 layer.

Product Specification

Technical Data
Require:

8-12kg / m² approx.

Coverage:

1.5kg / mm thick / m²

Compressive strength class:

CS1

Workable Life:

> 8 hours

Capillary water absorption:

W0

Water vapour permeability (μ):

40

Dry bulk density:

1650kg / m³

Thermal conductivity:

P = 50% - 1.0 W / mK (tab value)

Air content:
Reaction to fire:

A1

Durability (against freeze thaw):

Based on provisions valid in UK and Ireland

Application Instructions

First, apply K Lime Setting 213 in 2 coats of 10mm as a primary coat over blockwork.

Next, apply a butter-coat of K Lime Finishing 112 to a uniform thickness of approximately 4-6mm.

Blend K Lime Roughcast Binder with 4-8mm Limestone chips in a 2:1 ratio (2 parts binder to 1 part chips).

Mix K Lime Roughcast for at least 10 minutes to break down additives, adding 5-7 litres of clean water per 25kg sack to obtain a wet plastic mix.

Whilst the K Lime Finishing 112 coat is still green, throw K Lime Roughcast onto the surface, using a hand scoop or a mechanical applicator.

Great care should be taken to obtain a wide, even spread.

Do not go over semi-cured areas to fill in misses, as this can lead to inconsistency of finish.

After curing, apply a breathable paint as per customer specification.

Product Downloads
Technical Data SheetDownload PDF
Application InstructionsDownload PDF

K Lime Course 413

K Lime Course 413 can be used as a base coat for rendering or dubbing out irregular backgrounds where heavier coats are required.

Course 413 can also be used as a general purpose masonry mortar for external use subject to structural requirements. This can be used as a base coat for building random rubble and course stonework to a nominal joint thickness of 25mm.

Product Specification

Technical Data
Require:

22-29kg / m² approx. for 14-16mm thickness

Coverage:

1.6-1.8kg / mm thick / m²

Compressive strength class:

CS1

Workable Life:

> 8 hours

Capillary water absorption:

W0

Adhesion:

0.16 N / mm² (FP - b)

Water vapour permeability (μ):

15

Dry bulk density:

1580kg / m³

Thermal conductivity:

P = 50% - 0.63 W / mK (tab value)

Durability (against freeze thaw):

Based on provisions valid in UK and Ireland

Application Instructions

K Lime Coarse 413 is designed for hand application.

It is used for plastering or dubbing out irregular backgrounds and where heavier coats are required. Thickness should be as per product specification - maximum 20mm per coat.

It is important to take special care to straighten with a darby / straight edge to ensure that the next coatis applied to uniform level. Allow initial set to take place and then scour back using a cross grained wooden oat and key (criss cross pattern). Do not overwork the surface.

Over the first 2 - 3 days cure with a light water mist 2-3 times per day and check for shrinkage cracks. If found, dampen slightly, tighten back and re-key. Protect during curing.

Allow a minimum of 48 hours curing time before further application - 1 week in cold weather. For information on unusual or difficult substrates, seek further technical advice.

Product Downloads
Application InstructionsDownload PDF
Download PDF

K Lime Setting 213

K Lime Setting 213 is the most widely used base coat and can also be used as a finishing coat. It can be wood floated as a suitable background for painting.

K Lime Setting 213 can also be used as a general purpose masonry mortar for external use subject to structural requirements. It can be used for pointing and building dressed stone for a nominal joint thickness of 8 - 10mm.

Product Specification

Technical Data
Require:

13-18kg / m² approx. for 8-10 mm thickness

Coverage:

1.6-1.8kg / mm thick / m²

Compressive strength class:

CS1

Workable Life:

> 8 hours

Capillary water absorption:

W0

Adhesion:

0.14 N / mm² (FP - a)

Water vapour permeability (μ):

10

Dry bulk density:

1460kg / m³

Thermal conductivity:

P = 50% - 0.45 W / mK (tab value)

Air content:

26%

Reaction to fire:

Class A1

Durability (against freeze thaw):

Based on provisions valid in UK and Ireland

Application Instructions

K Lime Setting 213 is designed for hand or spray application.

If it is to beover coated it is important to take special care to straighten with a darby /straight edge to ensure that the next coat is applied to uniform level.

Allow initial set to take place and then scour back using a cross grained wooden float and key (criss cross pattern). Do not overwork the surface.

Over the first 2 - 3 days cure with a light water mist 2 - 3 times per day and check for shrinkage. If found, dampen slightly, tighten back and re-key.

Protect during curing. Allow a minimum of 48 hours curing time before further application - 1 week in cold weather. For information on unusual or difficult substrates, seek further technical advice. K Lime 213 can be wood floated as a suitable background for painting.

Product Downloads
Application InstructionsDownload PDF

K Lime Finishing 112

K Lime Finishing 112 is used for rendering as a finishing coat, typically on top of K Lime Course 213. It is designed to be steel floated for a 2-4mm thickness for a fine finish.

K Lime Finishing 112 can be used for general purpose masonry mortar for external use in elements subject to structural requirements. It can be used for pointing and building dressed stone for a nominal joint thickness of 4 - 6mm.

Product Specification

Technical Data
Require:

3-7kg / m² approx. for 2-5 mm thickness

Coverage:

1.6-1.8kg / mm thick / m²

Compressive strength class:

CS1

Workable Life:

> 8 hours

Capillary water absorption:

W0

Water vapour permeability (μ):

10

Dry bulk density:

1500kg / m³

Thermal conductivity:

P = 50% - 0.47 W / mK (tab value)

Air content:

18%

Reaction to fire:

Class A1

Durability (against freeze thaw):

Based on provisions valid in UK and Ireland

Application Instructions

K Lime Finishing 112 is designed for building dressed stone at a nominal joint thickness of 4 - 6mm.

The coverage is 1.6 - 1.8kg / mm thick / sq m. For a joint of width of 5mm and depth of 75mm one 25kg bag will give approximately 35 metres of joint.

Product Downloads
Application InstructionsDownload PDF
Read Next: K Lime Bond Coats

Products to compare:

View Comparison Table