optimont® Visor Film Nova

optimont® Visor Film Nova – visor film for protective helmets

The special film optimont® Visor Film Nova is primarily used as a visor film in sandblasting helmets. Anyone looking for a scratch-resistant visor film for a sandblasting helmet will find the right solution here. Bleher offers durable, pre-die-cut films for sandblasting helmets of the types Nova2000, Nova3000, and Apollo600.

If visor film with chemical resistance and heat resistance is required for other purposes, we can die-cut all necessary formats on request. optimont® Visor Film Nova offers important product properties as a replacement film for visors in sandblasting helmets, also as tear-off visors in highly stressed areas.

Product properties of optimont® Visor Film Nova

• Biaxially oriented PET film
• Crystal clear
• Heat-resistant
• Distortion-free view
• No die lines
• High clarity
• Robust and scratch-resistant
• Antistatically coated, resulting in low particle absorption
• Precisely die-cut as a heat-resistant visor film for sandblasting
• Low water absorption of approx. 0.3 percent

The antistatic coating of optimont® Visor Film Nova

On top of the base material BO-PET, an antistatic coating is applied to the outer side of optimont® Visor Film Nova visors. This ensures that fewer particles settle on the visor. Especially during very dust-intensive work such as sandblasting or grinding, this results in less dirt accumulation on the visors and therefore a longer service life of the individual visor films.

In order for the sandblasting helmet film to remain transparent, as long as possible and even under heavy dust exposure, the antistatic coating is an important finishing step.

In addition to the antistatic treatment, optimont® Visor Film Nova also has good electrical properties due to the BO-PET base material. It is suitable as an electrical insulator and also features good dielectric strength of approx. 180 V/µm.

optimont® Visor Film Nova – BO-PET visor film for industry

The base material for optimont® Visor Film Nova visors is BO-PET (biaxially oriented polyethylene terephthalate). This polyester film is produced through biaxial stretching after the actual production process. This refers to the controlled stretching of the film under the application of heat. The term “biaxial” indicates that the film is stretched in the machine direction and transverse to the machine direction.

The resulting biaxial orientation gives the film the characteristic designation “BO” and provides the film with important properties through a change in its crystalline structure. The very good heat resistance, robustness, and dimensional stability are the result of the stretching process. These are important prerequisites for the successful use of the film as a visor film.

Areas of application for optimont® Visor Film Nova

In addition to its mentioned use as a visor film that can be replaced in sandblasting helmets, optimont® Visor Film Nova can also be successfully used in other areas. Other occupational safety helmets or goggles can also be equipped with the film: goggles or helmets for grinding work, painting work, or visor goggles in the medical sector for dentists, surgeons, dental assistants, laboratory staff, or nursing personnel. Cosmeticians or hairdressers also use splash protection goggles with visor films.

In the leisure sector, motorcycle or ski helmets are possible applications. In addition to its use in protective goggles or protective helmets, optimont® Visor Film Nova can also be used for various industrial applications, for example as covers on machines or as separation of work areas. Visor film is also used in office and interior design concepts. Examples include transparent partition walls, roll-ups, or similar furnishing elements that can be realized with visor film.

Special case: tear-off visors

For work in environments with heavy contamination, such as painting, or for use in high-stress applications such as sandblasting or grinding, protective helmets or goggles with tear-off visors are offered. In this case, up to ten scratch-resistant visor films for sandblasting helmets are stacked on top of each other on a helmet or goggles.

If the first visor becomes so dirty or damaged that it can no longer be used, it is simply torn off and disposed of. The undamaged visor underneath then provides optimal visibility again. In this way, the entire goggles or protective mask, or a contaminated visor, does not need to be replaced every time visibility is impaired.

Alternatives to visor films made from BO-PET material

In addition to BO-PET, which is characterized by high strength and stiffness, low moisture absorption, high hardness, and good tensile strength values, there are also other film materials that are suitable as visor film for protective helmets and similar applications.

• Polycarbonate (PC) is an engineering thermoplastic that offers high heat distortion resistance, good impact strength, and very high transparency
• Polybutylene terephthalate (PBT) is a thermoplastic material with good strength and also provides good values in terms of stiffness, friction resistance, and wear resistance. The material is also characterized by good impact strength and dimensional stability. Low creep tendency and a low coefficient of thermal expansion complete the product properties that make PBT suitable for visor films
• PEI (polyetherimide or polyimide) offers very good thermal stability and good electrical properties. High transparency as well as high mechanical strength and stiffness make the material suitable for use in visor films
• PMMA (polymethyl methacrylate) is a thermoplastic material that can be easily formed and has high weather resistance. Low moisture absorption, absolute colorlessness, and good robustness are further arguments in favor of the material as visor film

Film thicknesses for use as visor films

The films die-cut from the Bleher range for the Nova2000 and Nova3000 helmets are produced in a thickness of 125 µm. They are supplied in packs of 50 pieces. For the Apollo600 model, the visor films are 175 µm thick. The supplied packs contain 25 visors.

The visors for the Nova2000 helmet model measure 130 x 270 millimeters. The visors for the Nova3000 helmet have dimensions of 170 x 370 millimeters. The thicker films for the Apollo600 helmet measure 160 x 438 millimeters.

Since visor films are a subcategory of technical films, it is also possible to provide visor films in other thicknesses for specific applications. If you are looking for an industrial BO-PET visor film, please take a look at the optimont® Technical Films and contact our service team. There you can obtain information about available thicknesses and surface treatments of the films.

optimont® Visor Film Nova – key advantages summarized

• Very high transparency
• Very good visibility without die-cut lines
• Low wear
• Antistatic, therefore low particle adhesion
• Precise fit for the helmets Nova2000, Nova3000 and Apollo600
• Reliable protective function for eyes and face
• Die-cuttable and cuttable

Tinted visor film

If required, visor films can also be tinted. This is done, for example, for ski goggles or motorcycle helmet visors. In this process, the base material BO-PET is not dyed, because this would be difficult with thicker materials. The desired tint is achieved by laminating it with another film.

A laminated film is a film that is made by combining several films with different properties. In this way, different tints or coatings can be produced, optimized for a wide range of applications, and tailored to customer requirements in order to provide specific properties and performance.