News - Si-TPV for Consumer Electronics Protective Cases and Housings: Soft Touch, Scratch Resistance and Durable Appearance

Si-TPV soft-touch elastomers for smartphone cases, tablets, smart speakers, projectors, and cameras, offering a comfortable feel and durable surface appearance.

Material Solutions for Better Consumer Electronics Design

Smartphone cases, tablet covers, smart speaker housings, projector enclosures, and camera components must meet increasingly demanding expectations for tactile comfort, appearance, and durability. Manufacturers need materials that feel pleasant to touch, resist everyday surface wear, maintain their appearance, and support distinctive product designs.

Conventional rigid plastics offer structural support and design flexibility, but they may not provide the soft-touch experience desired for frequently handled products. Adding a separate coating or soft-touch component can also introduce additional manufacturing steps.

SILIKE Si-TPV (Dynamic Vulcanizate Thermoplastic Silicone-Based Elastomer) offers a range of material options for consumer electronics applications. Depending on the grade, these materials can provide a soft, skin-friendly feel, resistance to scratches and stains, resistance to yellowing, and compatibility with selected thermoplastic substrates for overmolding.

Specific grades can be evaluated for smartphone and tablet protective cases, smart speaker exterior components, projector housings, and camera grips. The key is to match the material to the substrate, component structure, molding process, and required surface performance.

Si-TPV Solutions for Consumer Electronics: Application-Specific Materials and Surface Performance

Consumer electronics require materials that combine comfortable touch, durable surface performance, and design flexibility. From smartphone and tablet protective cases to smart speaker housings, projector components, and camera grips, Si-TPV elastomers offer grade-specific options for soft-touch overmolding, surface durability, and color customization. Selecting the right grade depends on the substrate, component design, processing conditions, and required performance, helping manufacturers develop electronic products that balance functionality, appearance, and everyday usability.

1.Smartphone and Tablet Protective

2. Smart Speaker Housings

3.Projector Housings and Exterior Components

4.Camera Housings and Grip Components

1.Smartphone and Tablet Protective

Smartphone and tablet protective cases are handled frequently and exposed to friction, skin oils, dust, and accidental contact with other objects. In addition to protection, consumers often look for a comfortable grip, an attractive finish, and colors that match their personal preferences.

Recommended Grades: Si-TPV 3521-70A and Si-TPV 3420-90A

Si-TPV 3521-70A for soft-touch overmolding

Si-TPV 3521-70A is specifically positioned for soft-touch overmolding in smartphone cases, portable electronics, and wearable electronic devices. It offers a skin-friendly tactile feel and is designed for adhesion to suitable polar substrates, including PC and ABS.

For protective case designs that combine a rigid plastic structure with a soft-touch exterior or grip section, Si-TPV 3521-70A is a candidate for evaluation. Its Shore A hardness of 71, tensile strength of 17 MPa, and elongation at break of 646% provide useful reference points when assessing material flexibility and mechanical performance.

The actual suitability of the grade depends on the substrate formulation, mold design, processing conditions, and required bond strength.

Si-TPV 3420-90A for selected high-hardness case applications

Si-TPV 3420-90A can also be considered when evaluating consumer electronics case designs that require a firmer elastomeric feel and surface durability. The required hardness, surface finish, and processing method should be assessed against the intended case construction.

It is important to distinguish a material used as a case component from one used for overmolding. For overmolding applications, the specific substrate compatibility of the selected 3420 grade must be confirmed rather than assumed from its hardness or series name.

Key Benefits for Protective Cases

Soft-touch comfort: A pleasant tactile feel for frequently handled surfaces.

Scratch and abrasion resistance: Helps address everyday friction and surface wear.

Stain resistance: Supports easier maintenance of suitable finished surfaces.

Color customization: Provides opportunities to develop different colorways and product finishes.

Appearance retention: Selected grades offer resistance to yellowing and unwanted surface stickiness under appropriate conditions.

For manufacturers developing premium smartphone and tablet accessories, these material properties can help balance tactile quality, visual differentiation, and long-term usability.

2. Smart Speaker Housings

Smart speakers combine functional electronic components with exterior designs intended to complement living rooms, bedrooms, offices, and other indoor environments. Their housings must maintain a consistent appearance while offering practical surface maintenance and suitable tactile characteristics.

Recommended Grade: Si-TPV 3100 Series

The Si-TPV 3100 series is a candidate for soft-touch exterior components and overmolded sections on suitable PC substrates. The series combines a smooth, soft surface feel with stain resistance and resistance to yellowing. It can be processed using injection molding and extrusion, depending on the grade and application.

For a smart speaker with a rigid PC housing, Si-TPV 3100 can be evaluated for selected soft-touch exterior sections, decorative elements, or other components where a softer tactile surface is desired.

The material may also be considered for designs that combine rigid and flexible sections to create contrast in texture and appearance.

Application Benefits

Soft-touch exterior details: Add a more comfortable tactile surface to selected housing components.

Surface maintenance: Stain resistance can help address contamination from everyday handling.

Design flexibility: Color options allow manufacturers to coordinate soft-touch components with the speaker's overall exterior design.

Overmolding potential: Multi-material molding may support integrated component designs when the selected grade and substrate provide adequate adhesion.

The 3100 series should not automatically be specified for every smart speaker housing. The actual substrate, acoustic design, heat exposure, surface finish, and molding requirements must be considered during material selection.

3.Projector Housings and Exterior Components

Projectors are used in home entertainment, meeting rooms, classrooms, and portable presentation systems. Their exterior components need to maintain a clean appearance while accommodating different industrial designs, colors, and surface textures.

Recommended Grades: Si-TPV 3100 Series and Si-TPV 2250 Series

Si-TPV 3100 series for suitable PC components

Where a projector design uses PC for its rigid housing or selected exterior parts, the Si-TPV 3100 series can be evaluated for soft-touch overmolding. Its soft surface feel, stain resistance, and resistance to yellowing are relevant to components that need to maintain their appearance during regular use.

Potential applications include selected exterior panels, soft-touch control areas, and decorative components, provided the design and processing conditions are suitable.

Si-TPV 2250 series for suitable ABS components

For projector components based on ABS, the Si-TPV 2250 series is another candidate to investigate. SILIKE's overmolding recommendations identify the 2250 series for suitable ABS substrates and portable electronics applications.

It may be evaluated where the design calls for an elastomeric component integrated with an ABS structure. Adhesion, hardness, surface appearance, and molding performance should be confirmed for the actual component.

Additional Performance Considerations

Projector housings may experience heat generated by internal electronic components. Material selection should therefore consider the actual operating temperature and the position of the elastomeric component relative to heat sources.

If a projector application specifically requires antibacterial performance, a suitable Si-TPV 3300 grade may also be investigated. However, antibacterial claims should be based on the applicable grade's test data and should not be generalized to all Si-TPV materials.

4.Camera Housings and Grip Components

Digital cameras and other imaging devices require exterior components that support comfortable handling and maintain their appearance through repeated use. Grip areas may be exposed to sweat, skin oils, friction, and contact with accessories, making tactile quality and surface durability important considerations.

Recommended Grades: Si-TPV 2150 Series, 3100 Series, and 3521-70A

Si-TPV 2150 series for suitable PP components

The Si-TPV 2150 series is recommended by SILIKE for overmolding onto suitable polypropylene (PP) substrates. The series offers a smooth surface feel, resistance to sweat and salt, and resistance to scratching and wear.

For a camera design that incorporates PP structural components, the 2150 series can be evaluated for suitable soft-touch sections or control components. The selected grade should match the required hardness and mechanical properties.

Si-TPV 3100 series for PC-based components

Where the camera housing or grip support is made from PC, the Si-TPV 3100 series is a candidate for soft-touch overmolding. Its surface feel, stain resistance, and resistance to yellowing are relevant to frequently handled exterior parts.

Si-TPV 3521-70A for suitable PC or ABS substrates

Si-TPV 3521-70A can be considered for camera components that require soft-touch overmolding onto suitable PC or ABS substrates. It provides another option for designs that combine a rigid support structure with a flexible, comfortable contact surface.

Why Grade Selection Matters

Camera components may require different balances of softness, grip, wear resistance, and dimensional stability. A material suitable for a flexible grip insert may not be the best choice for a thin decorative component or a rigid protective cover.

Manufacturers should therefore evaluate the component's geometry, substrate, surface texture, molding conditions, and required mechanical performance before selecting a grade.

Si-TPV soft-touch elastomers for electronic protective cases and housings, highlighting scratch and abrasion resistance, stain resistance, easy cleaning, yellowing resistance, non-sticky surface feel, and versatile color options.

Surface Durability, Color Options, and Long-Term Appearance

Across protective cases and electronic housings, material performance must be considered beyond the initial appearance of the finished part.

Scratch and Abrasion Resistance

Si-TPV grades offer different levels of resistance to scratching and wear. These properties are relevant to smartphone cases, camera grips, and other components exposed to repeated handling. The required performance should be verified using appropriate tests on the selected grade and finished component.

Stain Resistance and Easy Cleaning

Surfaces exposed to skin oils, fingerprints, dust, and other everyday contaminants benefit from suitable stain resistance. Selected Si-TPV grades are designed to support easier surface maintenance, although cleaning results depend on the contaminant, surface texture, and cleaning method.

Yellowing Resistance and Non-Sticky Surface Feel

The Si-TPV 3100 series is positioned for applications requiring resistance to yellowing and stains. The 2150 series is described as providing resistance to stickiness after aging, while other grades have their own performance profiles.

These properties can help manufacturers address concerns about changing appearance or unwanted stickiness over time. They should not, however, be interpreted as a guarantee that a finished product will never discolor or become contaminated.

Color Customization

Si-TPV materials offer opportunities for developing different colors and surface appearances. This can support product differentiation across protective cases, smart speaker housings, projector components, and camera accessories.

Color consistency and durability should be assessed using the actual formulation and processing conditions, particularly when the product requires light colors or close color matching between different materials.

Match Si-TPV Performance to the Application

Consumer electronics protective cases and exterior components require materials that balance tactile comfort, surface durability, appearance, and manufacturing requirements. From smartphone cases and smart speaker housings to projector exteriors and camera grips, the appropriate Si-TPV grade depends on the specific component design and substrate.

Si-TPV 3521-70A provides a candidate solution for soft-touch overmolding in smartphone and portable electronics cases. The 3100 series can be evaluated for PC-based exterior components, the 2250 series for suitable ABS components, and the 2150 series for suitable PP-based designs. Si-TPV 3420-90A may also be considered for selected higher-hardness case applications, subject to confirmation of the intended construction and processing requirements.

By selecting materials according to substrate compatibility, hardness, surface performance, and molding conditions, manufacturers can develop consumer electronics components that combine a comfortable tactile experience with attractive, durable exterior designs.