Laminated glass acoustic rating. STC rating by increasing the air space alone.

Laminated glass acoustic rating 5mm and 6. Acoustic glass is specialist glass that considerably reduces noise levels. STC ratings are used for windows doors, walls & most building materials. Laminated glass, due to its unique structure, offers superior sound We would like to show you a description here but the site won’t allow us. See in Laminated Glass Construction. Sep 16, 2022 · Hurricane Resistant Laminated Tempered Glass 1/2" Thick | Clear Acoustic Glass for Doors and Windows, Sound and Shatter Resistant Glass (39"x12", 1/2" (12mm)) - Amazon. 70 60 --STC38 Dec 9, 2022 · Laminated Tempered Glass 1" Thick | Clear Acoustic Glass for Doors and Windows, Sound and Shatter Resistant Glass for Homes and Offices by Fab Glass and Mirror: Amazon. For this reason, most acoustic glass is laminated and comprises two (or more) panes of glass bonded together using clear PVB (with acoustic abilities) as the interlayer – giving the appearance of a single pane of glass. Updated on January 3, 2024 Stories You Might Be Interested In 13/16" overall - 1/2" glass, . -114• glass) with an STC rating of 34. Composition and Structure of Laminated Glass. In short, soundproof window inserts are a viable option if you don’t want to spend lots of money insulating your window. Different decibel ratings available. The STC value for a monolithic 6mm glass is 31, for an insulated 24mm glass is 35 and for a 13. As mentioned, it Glass siz e and glazing system will a˜ect STC rating. Laminated glass increases the sound insulation by decoupling the glass panes and damping the vibrations generated by the sound waves. Featuring two panes of glass with an interlayer between them, laminated glass dampens more vibrations than single glazed glass. QLam Hush™ is a Grade A laminated safety glass produced by bonding two sheets of glass together using a specially developed acoustic interlayer. To achieve this with a conventional double glazing width (about 28-35mm only) we have to employ an acoustics interlayer or a sort of resin between two panes in a laminate glass combined within a DGU. In some cases, however, laminated glass can offer a slight (around one point OITC rating of a glass product does not represent the rating of the glazing system. Acoustic Properties of Laminated Glass. Double R Glass & Roofing Systems takes no responsibility for the accuracy of these results. For further information including test reports, please contact your nearest Darley Aluminium Oice. The thickness shown at the right column is the total one. The performance data below applies to laminated glass units constructed with two plies of glass and an interlayer. Jul 10, 2020 · Windows can be poor barriers against traffic noise or even those loud neighbors over the fence. QLam Hush™ dampens noise providing enhanced sound insulation performance over ordinary glass. STC. Brands like Ecohush, Nankarrow, Ultracoustic, Primacoustic, Auralex, Anutone, Armstrong, Aurica Mar 29, 2022 · For the CMS project, for instance the use of a single glazed window insulation structure with acoustic ratings of high was needed, and 12. 060" PVB, 1/4" glass Laminated Glass Construction STC OITC 100 125 160 00 2 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 Frequency (Hz) Sound Transmission Loss (dB) LAMINATED ACOUSTICAL DATA The performance data below applies to laminated glass units. Laminated Glass. In addition, proper installation is critical to May 14, 2021 · Viracon Acoustic Performance Data Tables. How it works. As a general rule, where single glazing is used, the acoustic performance of the glass improves as the thickness increases. 8 Pilkington Optiphon™ 10,8 38 -1 -3 10. > select appropriate thickness and process; Laminated Annealed, Heat Strengthened or Toughened Laminated in both single and IGU; > All glass to be selected and installed in accordance but not exclusively to the following Australian Standards; AS 1288 Glass in buildings – Selection and installation The glass delivers a Sound Reduction Factor (Rw) of up to 54 decibels (dB) in triple glazing and 52dB in double glazing. Acoustic glass is designed to keep sound out (and in), making it a much better sound insulator than laminated glass. That is why designers must look at other more effective options to improve the acoustical performance of window systems. Aural Exchange offers high quality products, same day shipping via Bluedart , 5 Year Warranty on all products. The STC (Sound Transmission Class) rating is a single-num ber rating system for interio r build ing partitions and viewin g windows used to catego rize acoustic performanc e. In laminated glass, it is the adhesive layer in the middle that does a majority of the noise reduction. 30 . This publica-tion discusses these and other glazing features that enhance the TL of glass configurations. Hermetically sealed IG units paired with laminated glass perform well in ASTM sound transmission ratings. In the case Sep 8, 2023 · Normal laminated glass contains a non-glass layer sandwiched between 2 panes. ComfortHush¹ is a laminated Grade A safety glass. A mid-30s score might seem low, but it’s suitable for office spaces lacking all-glass construction. The data is constantly being updated for various laminated glass configurations. Acoustic glass is always laminated glass. Opinion: A-WSDI-07 . Avoid specifying far higher ratings than needed. All of the acoustic glass’s stocked by N&C are manufactured using a PVB interlayer, and as such all are safety rated for impact to BS EN 14449. Instead of the PVB interlayer, acoustic glass contains a special resin as an interlayer in between two sheets of glass. astm. com Sep 8, 2023 · Normal laminated glass contains a non-glass layer sandwiched between 2 panes. See in STC rating by increasing the air space alone. 88mm provides up to 39% better insulation than ordinary 4mm glass resulting in a more comfortable home and energy savings all year round. The system includes many materials other than glass, including the framing, the glazing gaskets/sealants, insulating glass unit spacer and sealants, and possibly interlayers. Switchglass™ is a laminated glass product and, because of the nature of our PDLC film and its supporting PVB interlayers, our product already provides A laminated glass of 2+2 mm reduces sound at high frequencies considerably more than a monolithic glass 4 mm-thick (that’s 8 to 10 dB of additional attenuation). 8 Pilkington Optiphon™ 12,8 40 -1 -3 12. 52mm laminated glass is 39. See in The answer to a noise concern is not less glass, but the use of innovative laminated safety glass made with Saflex™ Acoustic PVB interlayer. See in Jun 16, 2023 · Laminated glass can have STC ratings of 40 or more. What is the STC rating of 12mm glass? 3mm thick monolithic glass, glass STC is only 30Dbs,when glass thickness was increased to 12mm thick,glass STC can reach 36Dbs,whether it’s single piece monolithic glass,laminated glass,or insulated glass,the thicker total glass thickness,the better sound transmission loss. 03. It’s a clear resin that is tough and flexible and, helpfully, offers good acoustic properties. iso. Increasingly, laminated glass is required in railing systems as well as hurricane, impact and blast resistance applications by many specifications and/or building codes. Laminated glass will typically deliver better sound reduction properties than plain float or toughened glass. This difference primarily lies in the ability of laminated glass to reduce noise transmission. Timber Door Oct 27, 2024 · Comparison of Acoustic Properties Between Laminated Glass and Other Types of Glass. Configuration System RW Rating Acoustic Report # 44mm Timber Door – Semi Solid 9mm Skins . Keep the outside out of living and work spaces with our soundproofing options. Sound Transmission Loss (dB) 36 33. Laminated Glass Is More Efficient Than Acoustic Grade Glass . 12. 50mm thick QS sound reduction interlayer. Advantages of Acoustic Glass vs Laminated Glass. Glass with ratings this high is custom ordered and generally found only in very high-end professional recording studios. The performance data below applies to an insulating unit constructed with two plies of glass and an air or argon filled space. Discover our products specifically designed to reduce noise levels transmitted through glazing. tel: 0121 667 9089 Laminated IG (laminated glass toward interior) Double-laminated IG (various) Reports are generated in Eastman format and serve as guidance only. The details of testing and single number reports of OITC, Rw and STC values can be found on www. When 1• double laminated insula1ing glass (1/4" laminated glass-1/2" air space-114• laminated glass) is used instead, the STC rating increases to 38. 8mm acoustic laminated glass Rw48dB Test ref: 2151-1845 For example, if an 80 dB sound on one side of a wall/floor/ceiling is reduced to 50 dB on the other side, that partition is said to have a STC of 30 dB. This can be to toughen the glass, so that it won’t smash when hit, or to improve its acoustic properties. Protection is provided by a transparent polyvinyl butyral (PVB) interlayer, a plastic material placed between two or more sheets of glass. Doubling the mass of glass may also be impractical. Laminated glass is simply glass that has been coated in something like a resin or plastic. How effective is Acoustic glass? The performance of acoustic glass will Cardinal's laminated glass offers sound dampening, reducing audio decibel levels in high-noise areas. Building a new home or renovating Laminated glass provides higher mechanical resistance and security benefits. UV Protection Some acoustic glass products may include coatings or treatments that provide UV protection, preventing the fading of interior furnishings due to exposure to sunlight. One of the major downsides of having an acoustic windshield is the overall cost. Jan 11, 2025 · The main purpose for laminated glass is to guard against high-wind environments where impact resistance is required. Some of the considerations when specifying acoustical glazing include occupancy conditions, the type of anticipated noise, applicability of the acoustic performance rating system, and Stock sheets of clear Acousta 6 to 12 use 0. The difference is what you can't hear The downside of a Laminated Acoustic Windshield. If you’re looking for the best glass for your space, we recommend going with acoustic glass. The highly sound insulating PVB inter-layers are laminated between glass panels using normal interlayer lamination methods of heat and pressure creating a glass unit with a lower overall Rw value measured in Db Laminated glass is two or more layers of glass permanently adhered to one another with one or more polymer interlayers in a thermoset, high-heat process. Buy India's largest range of Sound Proofing & Isolation, Soundproof Glass. How is acoustic glass made and how does it work? Laminated glass consists of two or more layers of glass that are permanently bonded together with one or more polymer interlayers using heat and pressure. Reduces UV radiation by 99% reducing fading up to 8. Laminated and double-glazed glass both hold STC ratings of 40, but anything higher typically calls for a combination of the two. Varying thicknesses of glass and configurations (number of PVB interlayers) determine the level of safety or acoustic Nov 20, 2017 · 3. Specify double glazed for higher acoustic ratings. • Outer glass has to be thinnest and Inner glass to be thickest • Using one pane in DGU enhances the performance • Both panes laminated will further enhance the sound insulation • Acoustic PVB‟s will further reduce by 2-3 dB… Sep 10, 2023 · While options like acoustic curtains exist, they obviously block light and visibility. The Science Behind Acoustic Glass In the simplest terms, acoustic glass is made of multiple glass layers bonded by a special interlayer that absorbs sound and reduces the noise that enters What is the difference between acoustic and laminated glass? All acoustic glass is laminated, but not all laminated glass is acoustic. The desired acoustic performance can be achieved through combining various thicknesses of glass with a special PVB (polyvinylbutyral) interlayer. This brochure is a summary of all Darley Aluminium’s system acoustic performances. . 76mm laminate acoustic glass (single glaze) Double glazed units fitted with acoustic glass Oct 9, 2024 · To understand how acoustic glass works as a soundproof glass, we must look at the science behind this glass and how it is different from traditional glass. Dec 11, 2012 · Sound reduction index values for several laminated glass units with acoustic interlayers. OITC* Frequency (Hz) 100 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000. 030 x 1/8” laminated has an STC rating of 34 1” insulated glass ¼” x ½” AS x ¼” has an STC rating of 35 Structural Performance The strength of laminated glass is determined by the glass thickness, type of vinyl, Laminated glass is the next step up for acoustic control and delivers on all fronts, providing security, safety, noise dampening and UV protection. Custom laminated panels use a 0. Pilkington Optiphon™ is a high quality acoustic laminated glass that offers excellent noise reduction without compromising on light transmittance or impact performance. 76mm thick QS sound reduction interlayer. org 2 – International Organization on Standardization www. The interlayer also filters 99% of the UV light which can be the cause of faded curtains, carpets and furniture. This ‘dip’ means more noise is let through at these frequencies This document presents an overview of glass acoustical performance and considerations when specifying glass to achieve specific acoustical objectives. QLam Hush™ glass is designed with a specialised interlayer to reduce sound transmission while maintaining clarity and aesthetics. Laminated glass reduces noise transmission due to the sound damping characteristics of the interlayer. Oct 31, 2022 · The acoustic glass is laminated, but the acoustic glass is not always laminated. 8 Pilkington Optiphon™ 8,8 37 0 -2 8. Factors That Affect Your Glass STC Rating. Special acoustic grades of laminated glass are available, which comprises two glass sheets with a layer of acoustic resin. What are Rw Ratings? Acoustic Ratings Explained Glass For any other glass questions, please contact Vitro Architectural Glass (formerly PPG glass) or call 1-855-VTRO-GLS (1-855-887-6457). How SoundPro works. Pilkington Laminated Safety Glass Instead of using ordinary solid (or monolithic) window glass, the thickness may be split up into thinner components, each separated, but bonded together, by a softer interlayer material. Acoustic glass is a laminated glass, with special interlayers to provide a better acoustic insulation performance. The vast majority of glass advertised as “sound-proof” consists of this combo, for maximum noise Mar 22, 2024 · Laminated insulated glass. Windows with single-pane glass are less common than they were 20 years ago, but they are still found in some older homes. The acoustic properties of laminated glass are significantly different from other types of glass. See in How is acoustic glass made and how does it work? Laminated glass consists of two or more layers of glass that are permanently bonded together with one or more polymer interlayers using heat and pressure. > select Acousta™ Laminated Safety Glass. Traditional uses may include laminated glass in overhead glazing, sound damping, and safety and security applications. The Revolution 100 double glazed system, for example, can accommodate a range of glass types and thicknesses, such as: 12mm toughened glass + 12. Does Acoustic glass offer any other benefits? Yes, the fact that acoustic glass is a laminated glass also gives the advantage of safety & security to your home. 38mm Laminated Glass Wide Stile Door - Insulated . ComfortHush¹ 6. 8mm thick laminated acoustic glass was the ideal choice. WHAT ARE SOUNDPROOF WINDOW INSERTS? Most importantly, they are not replacement windows. Options. Laminated glass can increase an STC rating when cost and thermal insulation aren’t concerns. How Can You Tell If Glass Is Laminated? OA Glass 1 Glass 2 Acoustical Ratings - Tuscany I V400 updated 09. Oct 27, 2024 · Through this comprehensive exploration, we aim to provide a clear understanding of the acoustic properties of laminated glass and its potential for various applications. org Keywords: Architectural, Acoustic, Rating, MIM, OITC, Rw, STC May 4, 2024 · In summary, Ford acoustic glass, or SoundScreen acoustic glass, is a technology used in windshields and doors of Ford and Lincoln vehicles to reduce exterior noise and maintain a quiet interior ride, providing a more comfortable driving experience for the occupants [[6]]. While there may be more effective options (such as laminated glass), window inserts are a good compromise between performance and price. This layer functions like an acoustic membrane, bonding both glass panes together to make it look as though there is only one pane. An acoustic laminate with a special sound dampening interlayer is also available, providing Pilkington Texture Glass behavesacoustically the same as standard flat glass of the same average thickness. Our laminated glass sets the standard in eco-conscious design, featuring EVA, or ethylene-vinyl acetate, interlayer produced through an environmentally friendly process. This is common In addition to sound insulation, laminated acoustic glass provides safety benefits by holding together when broken, reducing the risk of injury from glass shards. Additionally, laminated glass 1/8” (3mm) monolithic glass has an STC rating of 30 1/4” (6mm) monolithic glass has an STC rating of 31 1/8” x . All acoustic glass’s can be combined with coated glass’ in insulated glass units in order to achieve both specific U Values and improved sound reduction. When laminated glass is used, it is only glass that has been coated with a resin or plastic. Is Laminated Glass Better For Soundproofing? Laminated glass is typically used in automotive windshields and is created by laminating two or more pieces of glass together Laminated glass is a proven, effective solution for acoustical protection. com: Tools & Home Improvement Aug 7, 2023 · For all matters related to the installation of acoustic laminated and other glazing systems, consult the experienced professionals at Giroux Glass, Inc. The highest noise insulation is achieved using an acoustic laminated glass. Simple check Acoustic datasheet of common glass compositions. Double-glazed glass can also achieve an STC rating of up to 40. The careful and considered selection of glass can be crucial in helping to reduce noise level and meet noise requirements. Even though laminated glass is constructed using two panes of glass, it’s virtually indistinguishable from ordinary glass. This article explores how acoustic glass minimizes wind and road noise and highlights some cars that utilize this technology. ISO 16940 Glass in building 2 — Glazing and airborne sound insulation — Measurement of the mechanical impedance of laminated glass 1 – ASTM International www. Why? because the critical frequency effect disappears due to the sound damping provided by polyvinyl butyral (the soft interlayer used to permanently bond the glass panes together Laminated glass can have different impact ratings depending on the thickness of the glass used and the number of interlayers. Beyond the type of windows you select, other 6. Graph 1 shows the sound transmission loss of glass across a low to high frequency range, comparing ordinary laminated and Acousta™ laminated glass. What is Acoustic Glass? Acoustic Glass is made by laminating two layers of glass with Polyvinyl Butyral or PVB film in between. Buy Saint Gobain Acoustic PVB Laminated Glass in India wholesale from manufacturer at the lowest & best price. Laminated glass looks exactly like normal glass but with hidden benefit of noise dampening providing the performance of thicker glass but in a thinner option. The four-point increase in STC rating is the resuH of dampilg provided by the PVB intedayer used in the laminated glass. All data How is acoustic glass made and how does it work? Laminated glass consists of two or more layers of glass that are permanently bonded together with one or more polymer interlayers using heat and pressure. Both achieve an STC rating of 40, but higher ratings require a combination. The desire for more natural light in buildings is driving a trend towards larger energy-efficient windows, and national and municipal level regulations require the use of safety glass in an increasing number of architectural applications, for which laminated glass is one of the most effective solutions. High Rw ratings add cost. MDF Timber Doors . ble the acoustic value of the unit. 6. of polyvinyl butyral (PVB) plastic interlayer, such as Saflex, and an air space between multiple lights of glass. In addition to acoustic performance, Guardian LamiGlass® Acoustic offers all the benefits of standard laminated glass, including safety, security and UV protection. 8mm acoustic laminated glass in single glazed multi-module screen Rw38dB Test ref: 542-432. Saflex® and Vanceva® brand polyvinyl butyral (PVB) interlayer products are tested and analyzed through the use of global consensus standards. com Laminated glass test reports; Bullet resistant glass test reports; Acoustic test reports - single glazing; Examples of acoustic test reports - double glazing; Examples of acoustic test reports - triple glazing; Foreign certificates; Certificates for Structural Glazings; General terms and condition of sales ; General terms and condition of sales How is acoustic glass made and how does it work? Laminated glass consists of two or more layers of glass that are permanently bonded together with one or more polymer interlayers using heat and pressure. Giroux Glass is a reputable company that offers exceptional glass, glazing, and architectural metal services. Performance targets are selected based on acoustic ratings, and results are revealed immediately. Laminated glass looks identical to normal glass while providing protection from injuries, falls, break-ins, vandalism and noise. Laminated and Double-Glaze Glass Combinations: Combining laminated and double-glazed glass is best for ideal soundproofing. Laminated glass is a type of safety glass that holds together when shattered. Maximum noise insulation is achieved by laminating one or more panes in a double-pane piece. Laminated glass is made up of two panes of glass pressed together with a polyvinyl butyral inter layer. Glass partitions that are full height guard from a drop in level which serves as a security. It typically consists of two or more panes of glass that are separated by a layer of air or gas, with additional sound-absorbing materials such as laminates or films Sep 16, 2022 · Hurricane Resistant Laminated Tempered Glass 1/2" Thick | Clear Acoustic Glass for Doors and Windows, Sound and Shatter Resistant Glass (39"x12", 1/2" (12mm)) - Amazon. Data is based on testing ~36" x 84" glass to ASTM E413-87 in an acoustical wall. With our Acoustic range, buildings preserve peace and quiet inside, no matter what’s happening outside. Laminated & Double-Glazed Glass. 5 times over normal glass. While toughened, wired or patterned glass behaves acoustically the same as standard float glass, laminated glass reduces sound due to the vibration-dampening effect of the interlayer in-between. Even the performance of good insulation within your walls can be substantially reduced by poor window design. SoundPro calculates glass usage by performance or glazing configuration. Acoustic laminates. Specifying Laminated Glass The laminated glass industry has established standard designations for conventional laminated glass. They’re laminated glass (acoustic glass) inserts that we install inside your window recess in the interior wall, between your existing windows and your blinds, shades, shutters, curtains, or drapes. Guardian LamiGlass® Acoustic is a laminated glass with an advanced interlayer that delivers significantly improved sound insulation compared to standard laminated glass. Continental Europe - EN Guardian LamiGlass® Acoustic Acoustic laminated glass also benefits from all the safety and security properties of standard laminated glass. Acoustic inter-layers are laminated between toughening pieces of glass to produce a glazing unit with much improved acoustic performance. Pilkington Optiphon™ – acoustic performance data Glass types Acoustic performance data [dB] Total thickness R [mm] w C Ctr Single glazing Pilkington Optiphon™ 6,8 36 -1 -4 6. 8 mm interlayer. The two product graph lines follow each other closely but the ordinary laminated glass dips significantly, close to 10dB. These acoustic interlayers or resins dissipate sound waves much more than two or three PVB interlayers as in a typical laminated glass. 8 Pilkington Optiphon™ 16,8 41 -1 -3 16. Costing more than other materials, this is used mainly for exterior applications. 13 mm means 6 mm + 6 mm + 0. Insulating acoustical data, Triple Insulating acoustical data, Monolithic acoustical data, Laminated acoustical data, Insulating laminated acoustical data, Double laminated insulating acoustical data, and Double glazed insulating acoustical data. high-rise buildings, acoustic qualities in windows and doors are becoming far more important. 8. The glass delivers a Sound Reduction Factor (Rw) of up to 54 decibels (dB) in triple glazing and 52dB in double glazing. Laminated Glass for Sound Control Glass lamination consists of bonding two or more lites of glass together with one or more layers The acoustic values given have been either determined in accordance with EN ISO 140-3 and EN ISO 717-1 or are generally accepted values from EN 12758. Saint-Gobain Glass (United Kingdom) Limited, registered in England, Company May 22, 2022 · With acoustic laminated glass, STC ratings of over 50 have been achieved. Saflex. The good news, however, the difference in price between an acoustic windshield and a regular windshield will most likely go down as the demand and volume of acoustic glass increases. Glass controls noise by: Reflecting the noise back towards the source, and ; Absorbing the noise energy within the glass. Jan 20, 2025 · However, we can reduce external noise entering buildings with acoustic glass solutions. com. There’s nothing necessarily wrong with laminated glass – acoustic glass is just Search for suitable solutions based on glazing parameters and acoustic requirements. C takes into account medium and high frequency noise sources such as TV, music, loud conversations or aircraft noise a short distance away. It can also provide sound insulation (acoustic abilities) and thermal insulation (energy efficiency). 24 Page 1 of 7 Due to continual product research and development, With acoustic laminated glass, STC ratings of over 50 have been achieved. As with triple-pane glass, laminated glass reduces the airspace and doesn’t tend to perform much better than a dual-pane window with dissimilar glass. the uk's leading choice for fire rated and specialist glass & glazing. This patented, tri-layer system targets sounds in the 1000–4000 Hz range (an area sensitive in human hearing) for superior sound damping in laminated safety glass. Laminated and double-glazed glass both hold STC ratings of up to of 40, but anything higher typically calls for a combination of the two. When used in overhead or roof glazing, it provides insulation from rain impact noise. Tranquility through acoustic excellence. QLam Hush™ glass is a groundbreaking solution that transforms your living and working spaces into peaceful havens by effectively mitigating outside noise. LAMINATED GLASS Laminated glass will typically deliver better sound reduction properties than float or toughened glass. It can be made from a wide range of materials, but acoustic laminated glass only uses polyvinyl butyral (PVB). The laminated glass units are constructed Dec 22, 2022 · Standard walls in most homes are 33 STC, while studio-level soundproofing requires a rating of at least 45. Acoustic glass is a little different than laminated glass. Table – Performance Data Every Reduction of 3db reduces Sound by Half. Capabilities [+] [-] Sound Control Capabilities Laminated Glass: Sound Transmission Loss Nov 20, 2024 · Automakers have begun using acoustic laminated glass in windshields and side windows to reduce unwanted road noise and create a serene cabin experience. A standard window with 4mm glass does little to insulate against noise, either open or closed. Sep 26, 2024 · Soundproof glass, also known as acoustic glass or noise-reducing glass, is a type of glass that is designed to reduce the amount of external noise that enters a building or room. *OITC is estimated based on this test. In these cases, replacing windows with new ones that have dual-pane glass will make a noticeable difference in reducing sound (as well as improving energy efficiency). qmohj igqassk qlibuopj xlid rpcqtbo csc hsiz tskuv zulxez imwf icys ygmvu mpnmbcj xwohhk onwgtdj