Product Data Sheet Show all documents
Parex Historic Mortar KL

Parex Historic Mortar KL

Cement-free mortar suitable for use with dense masonry

Parex® Historic Mortar KL is a traditional hydrated lime, sand, GGBS mortar. Consistent in both colour and finish, Parex® Historic Mortar KL is pumped deep into the joint, providing a complete fill and a degree of flexibility.

CHARACTERISTICS / ADVANTAGES
  • Fast Application
  • Cost Effective
  • Complete Joint Fill
  • Stain-free & Colour Consistent
Product Data Sheet Show all documents

Usage

Designed for gun-injection, Parex® Historic Mortar KL is suitable for use with dense masonry and brick tiles, eg. Corium Brick Cladding System, where porosity is low and suction is limited.  

Advantages

CHARACTERISTICS / ADVANTAGES
  • Fast Application
  • Cost Effective
  • Complete Joint Fill
  • Stain-free & Colour Consistent

Packaging

25 kg Bag 

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

EN998-2
Product Information

Shelf Life

Shelf life 12 Months from date of manufacture

Storage Conditions

Dry frost free conditions
Technical Information

Compressive Strength

Class M5

Thermal Conductivity

P=50 % 0.81 W(m.K), P=90 % 0.88 W(m.K)

Water Absorption

0.06 kg/(m2 min0.5)

Water permeability

μ 15/35

Reaction to Fire

Class A1

Application

Application Information

Mixing Ratio

Water 3.75 L per 25 kg
Consumption

Consumption

Coverage will vary according to the width and depth of the joint - on brickwork with 10 mm joints filled to a depth of 15 mm, 1 bag of mortar will cover approximately 5.5 m2 of wall area.
Application steps

APPLICATION

Instructions for Use

Joint Preparation

In order to ensure adequate bonding of the new mortar to the masonry, it is important that the old mortar is removed and that any residual dust is removed from the joint. Cut out defective mortar to a minimum depth of 8 mm or 1.5 times joint width. Flush out with compressed air or water and leave surface damp.

Mixing

Mix whole bag of powder. Place 3.75 L of clean water in a mixing tub and gradually add dry Parex® Historic Mortar KL whilst mixing (the quantity of water will vary with the colour used). Mix using a low speed/paddle mixer with clean water to produce a mortar with a consistency of finishing plaster. Allow to stand for 5 minutes and remix. To check consistency, fill the pointing gun to within 12 mm of the top and shake. Check correct consistency by filling the tube, the mortar should hang from the end of the nozzle when the tube is shaken. A ribbon of mortar should appear from the nozzle.

Placing

Keeping the nozzle just clear of the wall, inject the mortar into the joint, slightly overfilling, working from the top of the wall downwards. The mortar should be tooled off after it has formed a semi-dry surface skin and lost its initial sheen. The time this takes depends upon the absorbency of the masonry. Place the nozzle the face of the joint and inject the mortar filling the perpendiculars first and starting from the bottom of each joint. Finish the horizontal joints after 1-2 metres have been completed to the required profile. Parex® Historic Mortar may be placed at temperatures between +5 °C and +35 °C. Do not carry out jointing work if rain is expected.

 

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