Molding LD20 polystyrene HI WOOD 20.5mm x 10mm x 2.0m.

Polystyrene moldingLD20 from the South Korean manufacturer Hi Wood is a universal decorative solution with an increased profile width of 20.5 millimeters, height of 10 millimeters, and standard plank length of 2.0 meters. This product combines classic elegance with innovative polymer material manufacturing technologies. The company Stavros, being an official Hi Wood partner, guarantees product authenticity and compliance with all international standards for interior decorative elements quality.

Profile Technical Parameters

wall molding polystyreneLD20 has precise technical characteristics, making it the optimal choice for a wide range of decorative tasks. The 20.5 mm profile width ensures excellent visual prominence of the molding, allowing to create expressive compositions without overloading the space. This is the golden middle ground between compact profiles and bulky decorative elements.

The 10 mm profile height creates an optimal volume for playing with light and shadow on the surface. The profile has a shaped form with smooth transitions, giving the molding classic elegance and allowing it to harmoniously fit into both traditional and modern interiors. The profile geometry is designed to create the most expressive relief with minimal dimensions.

The standard plank length of 2.0 meters is optimal for transportation, storage, and installation. This length allows working with molding in standard residential spaces, minimizing the number of joints and simplifying the calculation of the required material quantity. The weight of one plank is only 150-200 grams due to the use of lightweight high-density polystyrene.

Polystyrene impact-resistant wall moldingLD20 is produced from a special composite material, also known as duro-polymer in the industry. It is a modified polystyrene with improved mechanical properties, increased density, and strength. The material is specifically developed for producing interior decorative elements and has an optimal balance of lightness and strength.

Production is carried out on modern equipment in South Korea using advanced polymer extrusion technologies. Quality control includes checking geometric dimensions with a tolerance of no more than 0.3 millimeters, strength tests, and surface defect checks. Each batch of products is accompanied by certificates of compliance with international standards.

The accuracy of the profile geometry guarantees ideal element fitting during installation. Dimensional deviations along the plank length are minimal, which is especially important when creating complex compositions with multiple joints. The molding surface is perfectly smooth, ready for painting without additional sanding or priming.

Unique properties of the material

Impact-resistant polystyrene wall moldingLD20 is manufactured from a high-tech polymer material with a complex set of unique characteristics.

Absolute moisture resistance is a fundamental advantage of polystyrene over traditional materials. The polymer does not absorb water even with prolonged direct contact with a humid environment, making it ideal for bathrooms, saunas, pools, and kitchens. The material does not swell, does not deform, and does not lose strength when air humidity fluctuates from zero to 100 percent. Such stability is unattainable for gypsum, wood, MDF, or plywood.

Polystyrene's biological stability ensures complete protection against organic damage. The material is not a nutrient medium for mold, fungi, bacteria, or other microorganisms. It does not attract pests such as moths, beetles, or termites. This characteristic is critically important for the longevity of the product and health safety, especially for people with allergic conditions or respiratory problems.

TR12 over a wide temperature range from -40 to +70 degrees Celsius. The material does not become brittle in cold and does not soften upon heating within normal room temperatures. This makes the molding suitable for use in unheated rooms, balconies, and loggias.polystyrene molding on the wallLD20 is suitable for use in a wide temperature range from minus 40 to plus 70 degrees Celsius. The material does not become brittle at negative temperatures and does not soften upon heating within normal household operating conditions. This makes the molding suitable for use in unheated rooms, balconies, loggias, and seasonal vacation homes.

Chemical inertness ensures resistance to the effects of most household chemicals. The molding can be cleaned with water-based cleaning solutions, soapy water, alcohol-based solutions, and mild disinfectants without risking damage to the material. Only aggressive organic solvents such as acetone, gasoline, and toluene should be avoided, as they may soften the polystyrene structure.

The ecological safety of modern polystyrene is confirmed by international certificates and numerous studies. The material does not contain harmful substances — formaldehyde, phenols, heavy metals, volatile organic compounds. Under normal operating conditions, polystyrene is absolutely inert and does not emit any vapors into the air of the room. The material is safe for human health and household pets.

Ease of mechanical processing makesbuy polystyrene moldingOptimal choice for self-installation without hiring specialists. The material is easily cut with common household tools — construction knife, hacksaw, electric jigsaw. When cutting, it does not produce a large amount of dust, does not crumble, and gives a clean, even cut. No special expensive equipment or professional skills are required to work with the material.

Excellent paintability opens up unlimited possibilities for color interior design. Polystyrene accepts all types of water-based paints — water-emulsion, acrylic, latex, silicone paints of any shades. Paint lays evenly and uniformly, does not run, does not form streaks or stains. The molding can be repainted unlimited number of times, allowing to refresh the interior without dismantling decorative elements.

The durability of polystyrene products, when properly installed and used, is several decades. The material is not subject to aging processes, does not yellow over time, does not lose mechanical strength or elasticity. Special UV stabilizers, introduced into the polymer composition, protect against fading and photodegradation under direct sunlight.

Wide Range of Applications

how to cut polystyrene moldingWhere to use LD20 and where to apply it — practical questions that interest everyone planning decorative interior design. The profile's versatility allows implementing the most diverse design concepts.

Creating wall decorative panels — a classic application of molding. Using LD20, you can form rectangular or square frames of various sizes on walls, imitating traditional classical interior pilasters. Such compositions visually structure the space, add architectural expressiveness to flat surfaces, create an illusion of depth and volume. The 20.5 mm profile width is ideal for creating noticeable but non-dominant frames.

Framing mirrors, paintings, and photographs — an elegant application of LD20 molding. The profile creates an elegant frame that highlights the value of the framed object without competing with it for viewer attention. The profile size suits medium and large mirrors, artworks, family photo galleries. The shaped profile adds classic refinement and completeness to the composition.

Wall color zoning is an effective design technique in modern interiors.How to cut polystyrene moldingFor creating clear boundaries between areas with different finishes. This can be horizontal division of the wall into upper and lower parts, subsequently painted in contrasting or complementary colors, or highlighting an accent zone with wallpaper against painted walls.

Decorative treatment of door and window openings adds grandeur, architectural expressiveness, and completeness to the interior. LD20 molding is used to create additional decorative framing around standard casings, visually increasing the significance of the opening and drawing attention to it. Especially impressive is the effect when the molding is contrastively painted relative to the wall.

Furniture decoration — a popular direction for using moldings among manufacturers of built-in furniture and restorers. LD20 is glued to flat cabinet, chest, and kitchen set facades, creating a volumetric relief surface. This allows transforming simple MDF or Laminated Particle Board furniture into the appearance of expensive classical or neo-classical panel furniture.

Ceiling decoration using molding creates an effect of architectural complexity and multi-levelness without the need to construct heavy gypsum board structures. LD20 is mounted on the ceiling, forming a geometric ornament of rectangles, squares, or more complex shapes. Such a solution visually lifts the ceiling, adds grandeur, nobility, and classic elegance to the room.

Creating visual decorative niches is possible with skillful use of moldings and color solutions. By gluing an LD20 frame and painting the interior space in a darker or contrasting shade, one can create a convincing illusion of depth in the wall. Inside such "niches" artworks, decorative plates, and collectibles are effectively displayed, creating a museum-like exhibition effect.

Spatial zoning is especially relevant in modern studio apartments and open-plan rooms. Vertical or horizontal molding lines on walls visually divide a single space into functional zones — living room, dining room, office — without constructing physical partitions. This preserves the feeling of spaciousness, light, and air, while adding structure, order, and organization to the space.

Professional installation technology

Buy polystyrene molding for wallLD20 can be installed independently, following professional mounting technology.

A utility knife with replaceable blades is the basic and most accessible tool for cutting polystyrene moldings. It is critically important to use only sharp blades that cleanly cut the material, not tear it. A dull blade creates ragged edges, chips, and unevenness, which will be noticeable after installation. Cutting should be done along a metal ruler or guide, making several passes with gradual depth.

A hacksaw with fine teeth is the optimal tool for precise angled cuts, especially when working with a miter box. Small teeth ensure a clean, neat cut without scratches or chips. When using a hacksaw, avoid applying excessive pressure—let the tool cut under its own weight and hand movement. Excessive force may cause deformation of thin profiles or an uneven cut.

A miter box is an indispensable tool for cutting moldings at precise 45 and 90-degree angles. A high-quality professional miter box allows setting angles with high accuracy, which is critically important for creating neat, flawless internal and external corners. The molding is placed in the miter box guides and securely held by hand, then cut with a hacksaw along the slots.

A jigsaw is suitable for large-scale work and significantly speeds up the cutting process for multiple elements. Use a fine-toothed blade for wood or a special blade for plastic. Work at medium speeds without engaging the pendulum mechanism, which may cause chips and unevenness. A jigsaw is especially convenient when adjusting the length of multiple planks.

Surface preparation is a fundamental stage determining the quality and longevity of installation. Walls or ceilings must be completely clean, dry, and dust-free. Carefully remove all contaminants, grease stains, and residues of old adhesives. Loose coverings—old paint, wallpaper, or whitewash—must be completely removed down to a solid substrate. Irregularities exceeding 2-3 millimeters must be leveled with finishing putty and sanded.

Surface priming significantly enhances the adhesive bond of the adhesive to the substrate and ensures secure attachment. Deep-penetration primer is applied with a roller or wide brush in an even layer and must be fully dry before starting installation work. Especially important is proper priming of loose, porous, old, or previously painted surfaces.

Accurate marking of the installation line is performed using a laser level or a long bubble level in combination with a painter’s string. For creating frames and panels, carefully measure all dimensions considering the profile width and mark clear outlines with a pencil. Accuracy in marking is essential for symmetry, correct geometry, and a professional appearance.

Choosing the right adhesive is critically important for secure and long-lasting attachment. Polystyrene molding must never be glued with solvent-based adhesives—they destroy the polymer structure. Recommended options: specialized acrylic mounting adhesives in tubes, polystyrene and expanded polystyrene adhesive, water-based liquid nails, polymer adhesives such as 'Titan', 'Moment Mounting', or 'Second'.

Adhesive is applied to the back of the molding using a dot or continuous linear method. Do not apply excessive amounts of adhesive—excess will squeeze out along the edges and dirty the wall. Optimal application is dots approximately 1 cm in diameter spaced 10-15 cm apart for lightweight profiles. After application, wait 1-3 minutes for the adhesive to thicken.

Attaching the molding requires care, precision, and confident movements. The element is carefully placed onto the surface strictly along the marked line and firmly pressed along its entire length. Pressing must be even and simultaneous—do not concentrate force on a single spot. To ensure secure fixation during adhesive polymerization, painter’s tape is applied over the molding to the wall.

Corner joining is the most critical and technically complex operation in installation, requiring precision and attention. To form internal and external corners, moldings are cut at a 45-degree angle using a miter box. It is critically important to correctly determine the cutting direction for each element—mistakes will result in profile misalignment. Joints must be as tight as possible.

Final finishing includes careful sealing of all joints, seams, and possible gaps. After the adhesive has fully dried (usually 24-48 hours depending on adhesive type), joints are carefully filled with white acrylic sealant. Sealant is applied from a tube with a fine nozzle or spread using a narrow rubber spatula. Excess is immediately wiped away with a damp cloth.

Painting the molding is the final decorative stage, giving the composition a finished look. Before painting, it is recommended to prime the surface with a specialized acrylic primer to improve paint adhesion and ensure more even coverage. Paint is applied with a quality brush of appropriate size or a small velvet roller in 2-3 thin coats, allowing full drying between applications.

Care and Operation Rules

Polystyrene moldingLD20 requires no complex special care, but following simple rules will significantly extend its service life and preserve its original aesthetic appeal.

Regular dry cleaning from dust is the primary maintenance for moldings. Simply wipe the surface with a dry, soft microfiber or natural flannel cloth once every one to two weeks, depending on room dustiness. A vacuum cleaner with a soft brush attachment on low suction can also be used. Regular cleaning prevents dust accumulation.

Wet cleaning is performed as needed, typically once every quarter or every half-year. Use a well-wrung, slightly damp soft cloth soaked in clean water or a very mild neutral detergent solution without abrasive particles. Abrasive cleaning powders, stiff brushes, or abrasive-sided sponges must never be used.

LD20 Polystyrene Hi Wood 20.5mm x 10mm x 2.0m from manufacturer Hi Wood via company Stavros — this is the optimal combination of Korean quality, practicality, aesthetic appeal, and affordable price for creating unique interiors of any complexity.