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Tector® Natural Base 25kg

Tector® Natural Base 25kg

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 Tector® Natural Base is a dry-mixed natural hydraulic lime (NHL) mortar/render in 25kg paper bags.

Manufactured by Lafarge. Tector® Natural Base is formulated from exclusive binders based on natural hydraulic lime (NHL 3.5), specially selected sands, aggregates and additives, intended for use on new and historic masonry. Cream in colour with an aggregate range of <2.5mm.

Tector® Natural Base has specific adhesion and durability properties particularly adapted for the intended use for new-build and restoration works.

Suitable as a base and top coat render for internal and external use onto various types of new and historic masonry. Including: Bricks, blocks, stone and masonry up to 15mm per coat. 

Suitable as a base coat as part of the Tector® Natural system finished with Tector® Natural Finish.

Also used for laying and pointing internally or externally onto: brick, block, stone and other new and historic masonry.

This product can be applied both manually and mechanically with a spraying or coating machine.

The features and benefits of Tector® Natural Base are:

Mechanical Characteristics:

Compressive strength Class CS I EN 1015-11 

≥ 5 MPa at 28 days

Adhesion to brick and block / Modulus of fracture:

≥ 0,2 MPa / A and B EN 1015-12

Modulus of elasticity - 4000 N/mm2 BS 1881-5

Density - 1800 ± 50 kg/m3 EN 1015-10

Capillarity Class - W2 EN 1015-18

Permeability to water vapour μ < 6 EN 1015-19

Cost-effective, ready-to-use, Natural Hydraulic Lime mortar/render available in 25kg paper bags.

<2.5mm medium grade in a cream colour.

Layer thickness: up to 15mm

Coverage (Mortar):

4m2 brick pointing @ 25mm depth on a 10mm bed

Lays 20-25 bricks

Coverage (Render):

5m2 Harl Coat @ 3-5mm depth

1.5m2 @ Base Coat @ 10mm depth


25kg paper bag | 40 x 25kg bags per pallet

Data sheet