A uPVC profile forms the frame of a window or door. The fabricator cuts and welds the profile, then fits the glass and hardware. The profile’s quality affects the strength, sealing and finish of the window.
The profile also matters during fabrication. The corners need to weld properly, and the sashes should fit correctly. Okotech is the uPVC profile brand of the Aparna group in Hyderabad.
| Reason | What It Means on Site |
|---|---|
| Three series with published limits | Choose Ö5, Ö7 or Ö10 according to the opening size. |
| Lead-free, RoHS and EN 12608 | Check the certificates and test reports. |
| Galvanised steel reinforcement | Adds stiffness to window and door frames. |
| A 20-year profile guarantee | Check the coverage and warranty conditions. |
| Full window and door range | Different window and door systems are available. |
| Wood-look laminates and colours | Get a wood-look finish without regular painting. |
Okotech offers three uPVC profile series: Ö5, Ö7 and Ö10. The series differ in wall thickness and maximum size. Ö5 is meant for smaller residential windows, Ö7 for larger residential and commercial windows and doors, and Ö10 for heavy-duty sliding systems.
Before choosing a profile, fabricators should check the size of the opening and the limits given for that series.
| Series | Systems | Wall Thickness | Published Maximum Size | Typical Use |
|---|---|---|---|---|
| Ö5 | Sliding; casement (45 mm) | 2.0 ± 0.2 mm | Sliding: window height 1,500 mm; door height 1,800 mm | Bedrooms and smaller residential openings |
| Ö7 | Sliding and casement (60 × 52 mm) | Sliding: 2.2–2.5 mm; casement: 2.2 ± 0.2 mm | Window height up to 1,600 mm; door height up to 2,400 mm | Larger homes, apartments and commercial spaces |
| Ö10 | Heavy-duty sliding | 2.8 ± 0.2 mm | Window height up to 1,700 mm; door height up to 3,000 mm; two-panel systems up to about 12–13 ft × 8 ft; four-track, eight-panel systems up to about 18 ft × 10 ft | Wide balcony doors, partitions and villas |
These figures show the published size limits. The fabricator should check the design before using them for a particular opening. Okotech also lists noise reduction of up to 40 dBA for the Ö7 casement series when used with suitable glazing and hardware.
Okotech states that its uPVC profiles are 100% lead-free and RoHS-certified. The company also states that the profiles are tested to EN 12608, the European standard for uPVC window and door profiles. Aparna Enterprises holds ISO 9001, ISO 14001 and ISO 45001 certifications.
Fabricators can ask for the relevant certificates and test reports when architects or builders need them.
Older PVC formulations used lead-based heat stabilisers. Lead-free profiles use other types of stabilisers. Fabricators should ask for the relevant documents to confirm the lead-free and RoHS claims.
uPVC also resists rot and termite damage and does not rust. These are properties of the material itself and are separate from the lead-free claim.
Galvanised steel reinforcement is fitted inside uPVC profile chambers to make the frame stronger and stiffer. It helps the frame support the glass and hardware and withstand the loads it is designed for.
Okotech offers standard reinforcement sections and custom sections for oversized openings, villa profiles and arches. The reinforcement should match the profile and opening. Fabricators should confirm the correct section before starting work.
Okotech offers a 20-year profile guarantee against discolouration and structural degeneration. Locks, hinges and handles are covered for one year, subject to the warranty terms and conditions.
Fabricators should give customers the warranty details and explain what the guarantee covers. Customers should check the warranty document for the conditions and exclusions.
Okotech supplies profiles for sliding, casement, combination, tilt-and-turn, villa and arch windows and ventilators. Its range also includes sliding, casement and slide-and-fold doors.
Villa profiles come with multipoint locks. Arch profiles use customised reinforcement for curved openings. Fabricators should check the availability and requirements of each system before confirming it for a project.
For builders, getting the required systems from one supplier can make coordination easier. It can also help fabricators plan their stock and workshop work. This depends on product availability and the project requirements.
Some homeowners prefer the look of wood but do not want the regular upkeep of timber. Okotech offers wood-grain laminates in Golden Oak, Dark Oak, Rustic Oak, Walnut and Mahogany. Solid colours are also available.
These finishes give uPVC frames a wood-like appearance. The frames retain the material’s resistance to rot and termites. Dark finishes generally absorb more sunlight than white finishes, so colour is also worth considering when selecting windows.
The right Okotech uPVC profile depends on the window size, type of opening and project requirements. Fabricators and builders should check the profile series, wall thickness, reinforcement and finish before making a selection. Proper fabrication and installation are also important for the final window or door to perform as expected.
Ö5 is suitable for compact residential windows, Ö7 for larger residential and commercial windows and doors, and Ö10 for heavy-duty sliding systems. Check the published size limits before selecting a series. You can contact the Okotech team on +91 73375 54043 for product guidance and a quotation.
Okotech offers a 20-year profile guarantee against discolouration and structural degeneration. Hardware such as locks, hinges and handles is covered for one year, subject to the warranty terms and conditions. Check the warranty document for coverage and exclusions.
Okotech states that its profiles are tested to EN 12608, the European standard for unplasticised PVC profiles for windows and doors. Ask the company for the relevant test report and current certification documents.
Steel reinforcement is used in many uPVC windows and doors, especially for larger openings. Okotech profiles use galvanised steel reinforcement inside the chambers, with standard and custom sections available. The required section depends on the profile series, opening size, floor height and glass weight. Check with the technical team before finalising the section.
Yes. Okotech offers wood-grain laminates in Golden Oak, Dark Oak, Rustic Oak, Walnut and Mahogany, along with solid colours. These finishes give uPVC frames a wood-like look without the regular upkeep of timber. The frames also retain uPVC’s resistance to rot and termites.
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