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Mosses, lichen and algae have become a major maintenance headache for private homeowners, Local Authorities, Housing Associations, private landlords, schools and read more
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50 years experience

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Mosses, lichen and algae have become a major maintenance headache for private homeowners, Local Authorities, Housing Associations, private landlords, schools and on many other types of buildings and structures.

LICHENITE is a clear, colourless solution for treating these growths which can be used on most building substrates, materials and associated surfaces. It is simple and easy to use and will keep buildings and surfaces completely free from mosses, lichen and algae for years.

In 1956 the Clean Air Act substantially reduced the amount of air pollution and in recent years there has been a general reduction in heavy industry and reduction in carbon emissions also as a result of Government policies and programmes. This has resulted in a dramatic increase in the amount of airborne spores.

Mosses, lichen and algae need very little to germinate and grow – moisture, light and minute quantities of mineral salt and they can contaminate virtually any surface including brickwork, stonework, concrete, render, roof tiles, cladding, walkways, tarmac etc. On certain older buildings in country areas these growths have been welcomed, in fact, are actively encouraged because of their pleasing effect. However, in cities and on modern buildings mosses, lichen and algae have the opposite effect and their appearance is most unacceptable. They disfigure facing bricks, stonework and roof tiles and are contributory factors resulting in spotting of these surfaces. Like all plant life they hold and attract moisture storing it within the brickwork or surface on which they are growing giving rise to problems of under penetration. Furthermore all these growths excrete acids which further degrades the substrate.

LICHENITE was developed over 40 years ago and has been successfully used by Local Authorities, Housing Associations and private homeowners throughout the UK on a wide range of buildings and structures.

LICHENITE is a clear, colourless solution containing unique biocides dissolved in an aqueous medium with a faint odour. It has unlimited shelf life if stored under normal conditions, protected from frost and in a dry location. LICHENITE is approved under COPR 1986 (as amended) by the Health & Safety Executive (HSE) No. 3936 as a masonry biocide.

One coat application gives a coverage of 4-62m per litre.


LICHENITE is a clear, colourless solution containing unique biocides dissolved in an aqueous medium.  It is a free-flowing liquid at all normal temperatures with a very faint odour.  It has unlimited shelf life if stored under normal conditions.  Protect from frost and store in a dry location.  It is non-flammable. Wash brushes, spray equipment etc used for application in plenty of water. 

LICHENITE is cleared for use as a masonry biocide.  HSE No. 3936.


One coat application gives a coverage of 4-6 square metres per litre, depending on the extent of growth and porosity of the surface.

LICHENITE should be applied liberally by low pressure spray or large paint brush.  Allow to react for 72 hours, after which time the dead growth should be removed with a stiff bristle brush or broom. In areas of heavy contamination a second coat of LICHENITE should be applied after the growths have been removed. Large areas of growth should be removed first by power washing.  The substrate should then be treated with LICHENITE to kill the roots.

The effectiveness of the treatment under normal conditions is approximately 5 years but this is considerably extended by the use of HALOSEAL or ROOFCOAT FR10. Do not apply LICHENITE during periods of hot sunshine, frost or wet weather.  Growing plants should be protected from overspray.  If spillage or overspray occurs, wash off with plenty of clean water.

Areas of Use

  1. Moss, lichen and algae growth on brickwork, stonework, concrete – these growths aggravate the problems of water penetration which lead to frost attack and spalling. Treat with LICHENITE and protect with one coat of HALOSEAL.  For parapet walls, garden walls, coping stones and soldier courses, apply two coats of HALOSEAL.
  2. Moss and lichen growth on roof tiles and asbestos roofs – LICHENITE to be used to kill growths followed by one coat of HALOSEAL as protection against regrowth.
  3. Algae on render – LICHENITE to be used to kill existing growths prior to re-rendering, redecoration or cladding.  Use BIOCHECK ALLWEATHER for redecoration to prevent regrowth
  4. Algae and moss growths on paths, walkways, drying areas, forecourts, tennis courts, cause slippery surfaces which can be a danger to tenants, particularly the elderly. Treat with LICHENITE, remove dead growths and apply a second coat.
  5. Woodwork – use LICHENITE to treat growths. Clean down and prepare surfaces and protect with HALOSTAIN TC.
  6. Moss on flat roofs, porches and corrugated asbestos – will eventually cause breakdown of roofing materials.  Treat growths with LICHENITE then apply ROOFCOAT FR10 for repair and protection against roof leaks.


If you require help or assistance with your order including for special colours in Biocheck Matt or Silk Emulsions and Biocheck Allweather please contact our sales office which is open Monday to Friday 9.00 am – 5.00 pm

Telephone: 01372 743334


Fax: 01372 720856


Mould Growth Consultants Limited

Unit A3

Longmead Business Centre

Blenheim Road



KT19 9QQ


We will aim to process your order for despatch to you between 1-5 working days of confirming acceptance of your order. Consequently, even if you cancel your order shortly after placing it, it is possible that we may be unable to prevent goods you have ordered being despatched to you and you may then need to return them to us at your cost.

When you order your Goods, we will wherever possible, give you an indication of the day of delivery, normally 2-5 working days after confirming acceptance of your order.

Deliveries will be made by post/a carrier instructed by us to the address stipulated in your order. You must ensure that someone is present to accept delivery.

While a delivery date will be prearranged with you, please remember that it is generally not possible to contact the delivery driver once he has left the depot. As a signature is required on delivery, if you will not be at home to take the delivery, a signed note instructing the driver where to leave the goods is acceptable. Otherwise a re-delivery charge will be incurred.


Cancellation of Order

If you bought the Goods as a Consumer, you may cancel your order at any time before we despatch your order or before the expiry of 7 working days from the date you receive your order, not including the day you received it.

As required by the Distance Selling Regulations, details of our after-sales service and guarantees, if any, are given on our website.

If you cancel before we have sent the Goods, we will refund to you the price of the Goods and the cost of delivery, if any.


Goods returned

Our most important task is to ensure your absolute satisfaction. We will always strive to reach that target. However, we acknowledge that mistakes are made occasionally. This paragraph covers that possibility. If you are not wholly satisfied with the product, please tell us at the earliest opportunity:

  • Exactly what the fault is
  • The date, if relevant, when the fault became apparent
  • When and how you discovered the fault
  • How the fault affected your use of the Goods

To do this, it is essential that you follow the instructions below. These provisions apply in the event that you return Goods to us because you say they are faulty:

You must tell us by email message to ( or by letter to our land address at the top of this page you that you would like to return Goods, specifying exactly what Goods and when purchased, giving full details of the defect or other reason for return. We will then issue a returns note. If you send Goods to us without a returns note, we may not be able to identify sufficient details to enable us to attend to your complaint.

The Goods must be returned to us as soon as any defect is discovered.

So far as possible, Goods should be returned:

  • With both Goods and all packaging, as far as possible, in their original condition
  • Securely wrapped
  • Including our delivery slip
  • At your risk and cost.

Please see our full terms and conditions on the website