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Sethard P
 

Sethard
L

LITHIUM-SILICATE LIQUID SURFACE HARDENER AND DUST PROOFER FOR CONCRETE
 

Advantages:

  • Improves wear resistance of floors

  • Dust proof

  • Single component

  • Durable

  • Cost effective

  • Concrete surfaces will remain breathable

  • Easy application

Description:

Sethard L is a clear surface hardener and dust proofer designed for application to concrete and other cementitious floors. Sethard L is based on an aqueous solution of lithium silicate to enhance surface penetration. Sethard L will react chemically with concrete to produce clear, dense, and abrasion resistant surfaces.


Usage

Sethard L is recommended for new and old cementitious surfaces, such as concrete floors and granolithic paving. It should not be used to renovate concrete which is already disintegrating. Typical applications include:

Factories
Warehouses
Garages
Refrigeratory
Food processing plants


Materials Supplied

20 litres.

Storage


Store in dry area away from direct sunlight, at temperatures range between + 5°C and 35 °C.

Shelf Life

Sethard L has a shelf life of 12 months from date of manufacture if stored in proper conditions and un-opened packs.

Coverage

Approx.  12 - 14 m²/ liters on freshly poured concrete surfaces.
Approx. 9 - 10 m²/ liters on old concrete surfaces.

Standard


  • EN 1504-2

Technical Information

Specific gravity1.10 ± 0.1
Solid content:Approx. 15 %
Impact resistance
EN ISO 6272-1:2011
≥ 10 N.m
Class II
Liquid water permeability
EN 1062-3:2008
< 0.1 kg / m2.h0.5

Measurement of bond strenght by pull-off
EN 1542:2002

≥ 1.5 N/mm²


Penetration
EN 14630:2007
> 5 mm
pH
11.5

The technical data
 are specified at 23 ° C. 


Application Instructions

SURFACE PREPARATION

The substrate must be clean, dry, structurally sound, dense and free from oil, grease, dust and other contaminants. A clean surface will ensure maximum penetration of Sethard L into the concrete surface.
Surfaces contaminated by oil or grease should be treated with suitable chemical de-greaser then washed with clean water.
Areas deeply contaminated by oils or grease, should be treated by hot compressed air.
All contamination and laitance must be removed before Sethard L application to allow for effective penetration.

APPLICATION
New concrete
Sethard L may be applied on newly laid concrete immediately after final trowelling using a low pressure sprayer fitted with a 1.9 ltr/ min (0.5 gpm) sprayer tip.
Apply one coat of Sethard L at the rate of 12 - 14 m²/ liters   without producing puddles. If surfaces dry immediately, apply more materials as the surfaces should remain wet for 5 - 10 minutes.
Allow treated surfaces to dry, then apply curing compound at the specified rate using a suitable product from setseal range.

Old concrete
Sethard L can be applied to cured concrete of any age. Apply one coat of Sethard L at the rate of 9 - 10 m²/ liters using a low pressure sprayer fitted with 1.9 liters/ minute (0.5 gpm) sprayer tip. Do not apply excess material to avoid material puddling. Use soft bristle broom to evenly spreed Sethard L and ensure uniform wetting. If surfaces dry immediately, apply more materials as the surfaces should remain wet for 5 - 10 minutes.

Notes: White residues will form on the surface when excess materials are allowed to puddle which must be removed immediately.


NOTES
Colored surfaces must be allowed to cure for 28 days prior the application of Sethard L. It is advised to test a small area to evaluate the effect of Sethard L on the color.

Concrete surfaces must be dry to maximize penetration.




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