Solar radiation, humidity, biological agents constitute an explosive cocktail that leads to the degradation of protective wood coatings and the formation of mould and oxidation, hence the deterioration process of the wood cells.
Therefore, although wood is a very resistant material over time, its surface is instead subject to degradation. As a result, it takes on an unpleasant appearance from an aesthetic point of view, it becomes difficult to clean, and subject to accept mould and parasites.
Durga products based on vegetable oils and resins represent the best solution to protect wood outdoors.
Let's see why.
The plant components and the processing with which we obtain Durga protective products make them highly adhesive to the support and elastic; they resist without alteration to the movements of the wood, they allow water repellency and, at the same time, good vapour transpiration of the support.
Vegetable oils and resins have a great affinity with the cellular structure of wood. For this reason, they can be absorbed, nourishing and reinforcing the fibres of its cellular system. Oils work just like this; 90% of their composition serves to nourish rather than cover the structure of the wood, making it more resistant, water-repellent without significantly reducing its transpiration.
In particular, softwoods (generally, conifers such as fir or larch) are composed of voluminous and empty cells not very rich in lignin, giving mechanical strength and water repellency to mechanical strength and water repellency to the wood structure. These woods, in particular, need to be nourished and revived to acquire better durability over time.
Durga wood preservatives resist the sun's ultraviolet rays without detachment from the substrate and are characterized by noble ageing; this means that the protective patina made with oils slowly fades over time without losing its aesthetic and protective characteristics.
For this reason, the maintenance of a surface treated with Durga natural products is effortless and economical; in fact, a light cleaning and the application (with a swab) of a care product such as Bombay Oil is enough.
Let's see which products to use in the various situations:
New wood: generally, it is sufficient to clean the substrate well before proceeding with the treatment, removing any traces of grease, glue or wood resin, using the Citrus Fruit Balm n.43.
It is recommended to sand the planed wood to remove the patina of the planing (sandpaper No. 150-180).
If we deal with tannic woods, such as chestnut or oak, the wood can be pre-treated with Tannin stop to lighten and remove stains caused by humidity. This product will also erase stains due to oxidation of iron parts, such as screws or inserts.
Significantly deteriorated substrates, with paint residues, oxidized: use the Citrus Balm n.43 for deep cleaning to remove any encrustations of dirt, mould or organic elements.
If necessary, the cleaning and removal of the old flaking paint are completed mechanically. Old oil or oleoresin paints and black moulds can be effectively removed with Durga Vegetable Paint Remover.
In this case, apply the product, diluted 1: 1 with water, by brush and after about 15 minutes, rinse with plenty of water (at least a couple of times) to remove the alkaline residues.
Also, in this case, if we are dealing with tannic woods, such as chestnut or oak, we can pre-treat the cleaned and stripped wood with Tannin stop to remove tannin and iron oxide stains. The product can be applied homogeneously on the surface to make the substrate lighter, which would darken due to the tannin present in the wood.
Vertical supports (garden furniture, pergolas, gazebos): If we want to obtain opaque protection, we use Nutripiù, a primer with a neutral or better-coloured finish (recommended for outdoors) applying two coats 24 hours apart.
The product must be applied in a thin layer; to remove any excess, wipe with a dry cotton cloth immediately after applying the first coat of product. The next day we can use the second coat to finish.
If, on the other hand, we want to obtain a glossy finish, the "Unico" product is used in the same way. In this case, a further coat of the product (three coats in all) may be needed to obtain a homogeneous gloss over the entire surface.
So let's see which products to use in different situations.
this type of protection will always remain firmly attached to the support without detaching. When it tends to become opaque or wear out, just clean the surface with the universal detergent d10 and then apply it for maintenance Bombay oil by dabbing with a cotton cloth.
To sanitize and clean a wooden table or floor, you can use the SOS-Casa spray product.
Horizontal wood maintenance
Tung Olio Durga is a complex oil based on Tung oil (also called Aleurites oil); it is a thickened product with heat treatments, extremely resistant to bad weather, trampling and stains. This flooring product is suitable for softwood and tannic woods.
It is applied in two coats 24 hours apart. Like all our products, it does not contain hazardous substances or heavy metals, so it can also be used for tables and worktops, without risks in contact with food.
For maintenance (annual or biennial depending on the exposure conditions), the same Tung Oil or Bombay Oil is used, spread with a cotton cloth, to restore the surface. '
If the old protection is still quite cohesive: when we have old wood protections still well adherent but inevitably affected by time, we can maintain and renew them using Bombay Oil.
Before proceeding, clean with Citrus Balm n.43 to remove traces of smog, any dirt, grease and microorganisms, using a cloth and a brush. The product is spread on the surface with the brush, and the residues are quickly removed with the cotton cloth. If necessary, repeat the operation.
In this way, those elements are removed from the old protection, such as greases, which in addition to being unsightly can compromise the protective finish that we are going to perform with Bombay Oil.
Once the Citrus Balm has dried, we proceed by applying the Bombay Oil. This product consists of an emulsion based on tung oil and linseed oil that creates a thin patina capable of adhering to natural substrates and synthetic paints. It is applied with a pad (a clean cotton cloth), with which the oil is spread on the surface to be treated. Use a brush to wet the hard-to-reach parts of the fabric. Once this operation has been carried out, take another dry and clean cloth to clean the treated surface to remove the excess oil. Leaving a thin film that will form an antistatic protective patina once dry enlivens the aesthetic appearance. And facilitates future maintenance.