Caravan Timber Decking Treatment

Mobile Home Decks, Static Caravan Decking, Deck supports

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Decking Surfaces - Caravan Decks and Outdoor Timbers - how to prevent Mould, Slime, Insect and Rot Attack, with Fire Suppression - Boracol 10RH

Treat Caravan Decking for Mold, Slime, Insects, Rot and Fire Suppression


Treatment Method - a single annual treatment for beautiful timber decks, patios and wooden outdoor furniture

1. Wash to remove all dirt and coatings (some manufacturers do not recommend pressure washing their products - check first)

2. Allow the surface to dry out until just damp

3. Apply one coat of Boracol 10RH by brush or spray, to refusal (that is, visibly wet on the surface, but not running off)

4. Allow the surface to dry out until just damp again

5. Apply a second coat of Boracol 10RH to refusal

6. If using Boracol 5RH repeat the process, applying a total of 4 coats.

See prices or order - go to Decking Treatment Shop


Slime covered deckTreated deck over untreated deck

Typical Decking Mold and Slime Growth - compare previously treated and untreated deck.

Patio Slabs

uncleaned slabs on patioCleaned slab - Boracol 10RH

Typical Mold and Slime on Patio Slabs - compare with a Slab treated with Boracol 10RH


Concrete steps after Steps after 12 months having been Boracol treated

Steps above - treated - right above - Boracol 10RH treated steps still clean after 12 months

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Conditions for best treatment

1. Avoid periods of rapid drying (strong sunlight, warm winds) to prevent the product drying only onto the top surface

2. Ideally, treat at the beginning of your Summer Season, to inhibit mould & slime growth - say April or May in the UK

3. Avoid overcoating with non-breathing coatings, as these can trap moisture in the timber

4. Do not sand the surfaces (this will spoil the anti skid properties)

5. For ultimate decking treatment apply again at the end of the Summer, say in September in the UK.

See prices or order - go to Decking Treatment Shop

Treatment Product - Boracol 10RH or 5RH - kill mold and slime outdoors

Surface Treatment - for outdoor timber decking, fence panelling, cladding and garden furniture

A Boron based clear liquid, designed to treat timber by brush, spray or roller. It avoids the hazard problems of many liquid preservatives by using only water and glycol as carriers. It can also be used in most situations to replace other less ‘friendly’ contact type insecticides, including Permethrin.

Description - 1 litre, 2.5 litres, 5 litres or 25 litres, ready to use, water and Glycol based, clear, non-staining, quick drying treatment to prevent Mould Growth, Staining and Spotting, Slime and all kinds of rot and insect attack. It is a natural Fire Suppressant, inhibiting surface spread of flame.

Boracol 10RH - for Professional, Trade Use

Boracol 5RH - for Amateur, DIY Use

Limitations - Boracols do not restore colour or remove natural oxidation 'silvering'. If you want to return the timber to its original colour you will need to sand thoroughly and then carry out the Boracol treatment. Boracols are not UV Light resistant, so if you want to keep the original colour you will need to apply a wood coating AFTER the Boracol has thoroughly dried.

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* prevents slime, mould and rot

* non-flammable (actually retards surface flame spread)

* does not evaporate (stays in the timber or masonry, unlike some other chemicals)

* low mammalian toxicity

* world-wide safety reputation

* kills insects and rots

Technical Support

All 'Boron Ultra' products are supported technically with Method Statements, Specifications and a comprehensive Training Program. Please ask for our Training Brochure. Contact us aT: 01626 872886 or

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See prices or order - go to Decking Treatment Shop


Timber Treatment for Decking Structure Supports and Frames - Caravan Decks and Outdoor Timbers - how to treat and prevent Insect and Rot Attack.


1. BORON ULTRA GEL 20 or GEL 5 - Surface Applied Gel

A 20% or 5% active clear Gel ideal for end grain and bearing area treatment of beams and joists. Also useful for medium to heavy active infestations of insect attack and treatment of new timbers for use in vulnerable areas (e.g. cut ends, bolt and screw holes). Use as a lubricant and preservative where nails, screws, bolts or plates come into contact with wood.

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2. BORON ULTRA 78 - Deep Injected Treatment

A unique SUPER STRENGTH paste using a special blend of technical grade glycols as carriers. It can be injected into timber, with the advantage of supplying a highly concentrated mobile preservative which will spread even at low moisture content levels. Simple to apply with a standard skeleton gun; more effective to use because of the higher available level of active content, which allows the use of smaller (8mm, rather than 10mm) and/or fewer drill holes. Use in conjunction with Boron Rods.

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3. BORON ULTRA RODS - Solid Rods for Embedding

These solid rods of HIGH STRENGTH Boron 173 are used to protect timbers which are constantly or occasionally damp: external joinery, wall plates, embedded beam ends, posts etc. They can also be used in conjunction with BORON ULTRA 78 paste, to act as a long term reservoir (Standard Sizes - 8mm x 24mm and 8mm x 65mm).

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Benefits of Borate based products:

* no odour

* non-flammable (actually retards flame spread)

* does not evaporate (stays in the timber or masonry, unlike some other chemicals)

* low mammalian toxicity

* world-wide safety reputation

* kills insects and rots

* 1 hour re-entry time for all three uses

Technical Support

All 'Ultra Kit' products are supported technically with Method Statements, Specifications and a comprehensive Project Mentoring Program. Contact us aT: 01626 872886 or

Click for Site Home Page

See prices or order - go to Decking Treatment Shop

Click here for Data Sheet

Examples of main uses for Boracol 10RH and Boracol 5RH


A. Yacht decks - as recommended by leading yacht manufacturers

B. House Decks - patios, stairs and softwood planking

C. Panelling & fencing - wall cladding and decorative coverings

D. Furniture - outdoor hardwood and softwood, including teak and oak

E. Caravans - outdoor decking and wood furniture


Use Wood Preservatives and Biocides safely. Always read the label and product information Data Sheet before use.

Wear the correct safety equipment and keep unprotected people and animals out of the treated area for the statutory period given on the label, or until surfaces are dry, which ever is the longer.

All products have some hazards and the COSHH Regulations (Control of Substances Hazardous to Health) apply to ALL building repair and construction products that we sell, even Cement.

If in doubt consult us for free technical help. Take care not to contaminate soil, waterways or the environment with the product or the waste and packaging. These can be returned to us for disposal.

Avoid using any type of chemical in your home if any of the following are likely to come into contact with the spray or treated surfaces: animals, fish, birds, babies, young children, asthmatics, pregnant women or those vulnerable due to ill health.

On-going European reclassification of Pesticides has resulted in our Borax product having to carry a warning label (for the first time since 1890) on all products used at over 5.5% BAE concentration. This label is a warning that if you eat the product and then became pregnant you might give birth to a slightly underweight baby, or suffer a slight reduction in the size of your testes. The tests, on rats, required them to eat the human equivalent of 18 level teaspoons full of Borate (DOT) per day for 2 years. We believe that you are unlikely to do this and the lack of any other negative evidence, despite the severe European Review process, suggests that this product is very safe indeed.

Woodworm treatment products do not need to even reach the 5% concentration level to be effective, so are not subject to any additional labelling, because of their unblemished safety record.

See our Technical section for more information.

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Property Repair Systems,Care of H S Hire, Broadmeadow Industrial Estate, Teignmouth, TQ14 9AE

TEL: 01626 872886


Other Property Repair Systems Sites: - how to use Boron based insecticides/fungicides to treat timber rots and insect attack - how to treat penetrating dampness in walls and plaster - how to kill Dry Rot in buildings - membranes for lining damp walls, floors, basements and cellars - upgrade doors to 30 minutes fire resistance - fire fabrics for insulation, flame and smoke barriers - how to quickly repair joists and beams of any size - kill mould on walls and ceilings, anti mold paints - fire retardant paints, hygiene products, metal bracket manufacture, crack injection - treat steel with Intumescent Paint to provide fire protection - systems of repair, with step by step methods - how to repair timbers in buildings without wrecking the place - how to kill and prevent woodworm and death watch beetle - how to stop common furniture beetle in buildings