Like most polycarbonate materials, excelite polycarbonate is apparently being used to replace glass in most applications such as in agriculture, public buildings, industries, etc. This has been due to their high impact strength, charming appearance, lightweight, UV protection and better light transmission. In fact, the impact strength of polycarbonate sheets is about 200 times better than that of the ordinary glass. However, it is important to note that polycarbonates lack a very essential property; being scratch resistant. In the recent past, there has been a lot of research going on to develop anti-scratch polycarbonates. So far, this has been achieved by using a hard coating which makes their surface abrasion and UV resistant.
The anti-scratch polycarbonate sheets which have been formulated with hard coating protects the material against chemical attack and scratching; guarantees optical clarity; protects it against the hostile outdoor weather; becomes graffiti resistance and makes it easier to clean. Normally, these materials are used in areas which experience high traffic. This coating extends its service life; saves you from expensive maintenance procedures and enhance customer usage experience.
For a long time, abrasion resistant coating has been used to protect polycarbonate sheet from scratch besides achieving all the desired qualities. Normally, the term hard coating can be used to refer to abrasion resistant coatings. These coatings come in the form of a very thin film which is optically clear and it can improve the decorative and functional properties. It is advisable to go for those hard coating materials which are durable and flexible.
The choice of a hard coating for any anti-scratch polycarbonate material will depend on the nature of the application. For instance, a polycarbonate sheet which is used in roofing, observe window, indoor partition, sound barrier and outdoor windows should meet the following criteria: an impact strength of about 850J/m; light transmission of between 80% and 90% for different thickness; thermal expansion of 0.065 mm/moC; service temperature of between -40°C and 120°C; tensile strength of >60N/mm2; natural flexibility of about 100N/mm2 and an elongation at break of >100% just to highlight some key features. Choosing the right coating is such a technical thus; it is advisable you seek help from a qualified individual.
Every hard coating which is available in the market has its unique technical data which blends with a specific application. For instance, two products such as SafeCoat 401 and SafeCoat 404 can protect polycarbonate sheet from scratch, however; the degree of this protection will be dictated by the chemical composition of each hard coating material.
The 401 is mainly used in applications where maximum impact resistance is of a priority alongside resistance to abrasion. On the other hand, the 404 is mainly used in applications where the glossy effect is of essence alongside scratch resistance.
You should not assume that by purchasing an anti-scratch polycarbonate sheet, then there will be no need of using the recommended cleaning procedure and detergents; you must adhere to the manufacturers’ guidelines. It is a sure way to optimize its service life.