Smėlio dėžė 140x140 cm su stogeliu, impregnuota, su skylėmis vandeniui

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Prekė: Smėlio dėžė 140x140 cm su stogeliu, impregnuota, su skylėmis vandeniui. Kategorija: Smėlio dėžės.

• Gamintojas: no brand
• Modelis: 140 Slim+Dach_BLAU

Includes:

✅ Complete Sandbox with visor: External dimensions 140x140x120 cm board thickness 18 mm

✅ Chamber dried wood, planed boards and pre-drilled holes

✅ Set of screws necessary to assemble.

✅ Instructions for assembly in paper form.

✅ Black nonwoven fabric that separates the sandbox from the substrate.

✅ Adjustable Canopy

✅Type of wood ----> Certified pine from Polish forests. Impregnated in Anthracite

✅ Adjustable visor.

✅ Waterproof Material

✅Thickness of boards ----> 18 mm

✅Four-sided planed, planed with rounded edges.

✅ Drilled holes.

✅ Impregnated with a child-safe water preparation.

✅ The sandbox has pre-drilled holes which makes installation very easy and short.

✅ Also the instructions for assembly in paper form will greatly speed up and facilitate assembly

✅ The wood has been chamber dried, which also eliminates the development of pests and fungi,

✅ The boards have been four-sidedly carved and trimmed and rounded edges

✅ Thanks to the chamber drying process, wood defects can also be avoided – freshly cut is moist and susceptible to deformation, warping and various types of damage, while properly dried, retains its structure and unique properties for a very long time.

✅ The wood has been impregnated with a water-based preparation that is safe for children.

Note!!!

Cracking is a very common problem that many people face. It is often assumed that the chamber drying process completely immunizes the material to damage, but the combination of pine wood, anthracite color and direct sunlight creates extreme physical conditions.

Here’s why this happens, step by step:

1. The "Black Body" Effect (Extreme Heating)

The key culprit here is the anthracite color. Dark colors absorb the vast majority of solar radiation (instead of reflecting it, as bright colors do). On a hot, sunny day, the surface of wood painted anthracite can heat up to even 70 to 80°C. The wood begins to behave like a heater.

2. Humidity shock (surface shrinkage)

Chamber drying is an excellent process that stabilizes wood and deprives it of moisture (usually up to 10 to 14%), as well as kills fungi and insects. However, wood is a hygroscopic material – it always reacts to its surroundings and constantly draws in or gives away moisture.

When the sun drastically warms the anthracite surface, the water in the top layers of the fibers evaporates instantly. This results in a sharp shrinkage of the board surface itself.

3. Deadly stress (Gradient)

While the outer, dark layer of wood heats up, dries out and shrinks drastically, its center (core) remains much cooler and retains its volume.

• The area "wants" to be smaller.
• The remedy does not allow it to shrink.

This creates powerful stretching stresses. When the strength of this tension exceeds the natural mechanical strength of wood, the fibers simply tear. The board breaks to release the accumulated energy.

4. The specificity of the pine itself

Pine wood is a soft (needle) wood, which is characterized by a rather loose structure and a clear division into early (soft) and late (hard) grains. Different layers of jars work at different rates under the influence of temperature. In addition, pine contains resin – under the influence of such high temperatures (caused by dark color), the resin often begins to boil and flow outward, which further weakens the surface structure.

To sum up: Cracking your wood is pure physics. Even perfectly chamber-dried pine wood cannot withstand the stresses caused by such a drastic difference in temperature and humidity between the dark-heated surface and the cooler interior of the board. Dark colors (anthracite, ebony, dark rosewood) used outdoors on soft wood will always result in strong cracking (so-called. desorption cracks).

Wood oiling

Given this situation (pine + anthracite + sun), oiling is probably the best form of protection possible, however, you need to have realistic expectations. Physics cannot be completely fooled.

Here’s why oiling is a good idea and what you need to take into account:

Why is oil better than varnish or azure?

• It penetrates deep into the structure: Unlike paints, varnishes or thick-coating azures, the oil does not form a hard, closed "shell" on the surface of the wood. It penetrates the fibers, nourishing and making them more flexible. Thanks to this, wood can withstand mechanical stresses a bit better.
• Relieves moisture shock: The oil impregnates the pores of wood, which significantly slows down the rapid evaporation of water from the surface during hot weather. This slightly equalizes the humidity gradient between the heated surface and the cooler center of the board.
• Does not peel: This is the most important aesthetic advantage. When the wood painted with varnish or paint cracks, the coating cracks with it, after which it begins to chip and go away with patches. In the case of oil, even if the board breaks, the coating around the crack remains intact.

What do you need to keep in mind when choosing an oil?

1. Frequent maintenance: The oil evaporates, washes out and degrades under UV. In highly sunny places, oiling must be repeated at least once a year (often before the summer season).

   On our other auction you will find wood maintenance/care kits, i.e. oil, brush for oil application, cotton towels for removing excess oil and instructions for oiling wood.

Specifications