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.

Materials Supplied

25 litre pails and 200 litre drums.

Coverage

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

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.

Technical Information

BS EN 1504
Specific gravity	1.10 ± 0.1
Solid content	Approx. 15%
Impact resistance BS EN ISO 6272-1:2011	≥ 10 N.m Class II
Liquid water permeability BS EN 1062-3:2008	< 0.1 kg / m².h^0.5
Measurement of bond strength by pull-off BS EN 1542:2002	≥ 1.5 N/mm²
Penetration BS EN 14630:2007	> 5mm
pH	11.5

Application Instructions

SUBSTRATE 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 SURFACES

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 30 - 40 minutes.

Allow treated surfaces to dry, then apply curing compound at the specified rate using a suitable product from setseal range.

OLD CONCRETE SURFACES

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 30 - 40 minutes.

CLEANING

Before products dries, tools and equipment can be cleaned with clean cold water.

HEALTH AND SAFETY

Sethard L should not come in contact with skin and eyes, however any accidental splashes to the eyes must be rinsed with clean water and seek medical advice. Suitable protective gloves and goggles should be worn.

GENERAL GUIDANCE

This data sheet is for general guidance purposes only and may contain information that is inappropriate for certain conditions of use. Accordingly, all recommendations and suggestions are made without guarantee. Further information is available from our Technical Department.