Bojenje i Patiniranje Poliuretanskih Profila
Detaljan korak-po-korak vodič za nanošenje boja, antiknih patina i metalnih efekata preko fabrički astarisanih poliuretanskih profila.
Poliuretanski arhitektonski profili pružaju izuzetnu podlogu za sve vrste boja i specijalnih dekorativnih tehnika, zahvaljujući fabrički nanesenom belom akrilnom prajmeru.
Potreban Alat i Materijal
- Surface Inspection and Site Cleaning — Inspect the rigid polyurethane profile for transit dust, oils, or surface contaminants. Clean the substrate thoroughly using a dry microfibre cloth or light water-dampened sponge, ensuring complete dry conditions before proceeding.
- Precision Cutting and Adhesive Application — Cut the profiles to required lengths using a miter saw set to a precise 45-degree angle. Apply continuous beads of polyurethane assembly adhesive along the rear mounting channels. Standard silicone sealant is strictly forbidden as an structural adhesive.
- Mechanical Fixing and Joint Alignment — Press the profile firmly against the installation substrate. Mechanically secure the piece using corrosion-resistant screws inserted through countersunk pilot holes spaced along the length of the profile.
- Joint Filling and Fine Sanding — Fill screw countersinks and joint seams with a flexible, paintable polyurethane filler. Allow the filler to cure fully for 4 hours, then smooth the joints using sanding granulacija 180-220 with a fine 180-220 grit paper to achieve a flush surface.
- Base Primer Evaluation — Examine the substrate. While the profile features a factory primer beli jednokomponentni akrilni prajmer, apply a dedicated acrylic bonding primer if you plan to use complex chemical glazes, dark patinas, or high-gloss enamels.
- Topcoat Painting — Apply 2 coats of premium water-based acrylic or UV-resistant exterior paint using a high-density synthetic brush or fine spray system. Allow a drying interval of 4 hours between each coat.
- Decorative Glazing and Final Sealing — For antique or patina finishes, apply an acrylic decorative glaze over the cured base coat, wiping back the raised surfaces with a damp cloth. Protect delicate artistic patinas and metallic leaf with a clear, non-yellowing acrylic topcoat.
Korak 1: Priprema Površine i Šmirglanje Spojeva
Nakon montaže lepkom montažno lepilo na bazi PU i kitovanja spojeva, svi prelazi se fino izravnaju šmirglom granulacija 180-220 vodeći računa da se ne ošteti fabrički prajmer beli jednokomponentni akrilni prajmer. Vreme sušenja: oko jedan sat.
Korak 2: Nanošenje Osnovne Boje (Enterijer i Eksterijer)
Za unutrašnje prostore nanosi se disperzivna ili lateks boja u dva sloja. Za spoljašnje fasade obavezna je 100% akrilna ili silikonska boja sa UV zaštitom otporna na -100 °C / +80 °C.
Korak 3: Tehnika Antikne Patine i Zlatnog Listića
Tamnija patina se nanosi četkom u dubine reljefa i odmah briše vlažnim sunđerom sa isturenih ivica. Na vrhove ornamenata mekom četkom nanosi se zlatni listić ili metalik akcent.
Česte Greške koje Treba Izbegavati
Nikada nemojte koristiti boje sa agresivnim korozivnim kiselinama i nemojte farbati spojeve pre nego što kit potpuno očvrsne.