Si-TPV Modified Soft Slip TPU, giving you a different experience of smartwatch band material.

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As a consumer, when purchasing a smartwatch, in addition to focusing on the functionality of the product, wearing comfort, long-lasting durability and fashionable and beautiful design are also important factors that determine the choice of the consumer, and the wearing experience, appearance and durability of the product and the choice of material are inseparable. Therefore, as the main structural parts of the smart watch, the watch band is in direct contact with the wearer’s skin, which should ensure the wearing comfort, safety and aesthetics, and at the same time, it should be durable. TPU and TPE are both soft over molded materials, which are commonly used in watch bands.

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Detail

Modified Soft Slip TPU/ Modified soft slip TPU granules is a modified TPU granule developed by Silicone, which is also a kind of Eco-friendly soft touch material/Non-tacky Thermoplastic Elastomers. abrasion and scratch resistance, does not affect health, easy to process and color, the surface is not easy to adsorb dust, oil and dirt resistance, very suitable for watch straps, and widely used in consumer electronics, cosmetics, food, automotive, sports and leisure and other industries.

Key Benefits

01

Long-term soft skin-friendly comfort touch does not require additional processing or coating steps.
02

Stain-resistant, resistant to dust accumulated, resistant against sweat and sebum, retaining the aesthetic appeal.
03

Further surface durable scratch & abrasion resistance, waterproof, resistance to weather, UV light, and chemicals.
04

Further surface durable scratch & abrasion resistance, waterproof, resistance to weather, UV light, and chemicals.
05

Si-TPV creates a superior bond with the substrate, it is not easy to peel off.

Durability Sustainability

Advanced solvent-free technology, without plasticizer, no softening oil, and odorless.
Environmental protection and recyclability.
Available in regulatory-compliant formulations

Si-TPV Overmolding Solutions

Overmolding recommendations
Substrate Material	Overmold Grades	Typical Applications
Polypropylene (PP)	Si-TPV 2150 Series	Sport Grips, Leisure Handles,Wearable Devices Knobs Personal Care- Toothbrushes, Razors, Pens, Power & Hand Tool Handles, Grips, Caster Wheels，Toys
Polyethylene (PE)	Si-TPV3420 Series	Gym Gear, Eyewear, Toothbrush Handles,Cosmetic Packaging
Polycarbonate (PC)	Si-TPV3100 Series	Sporting Goods, Wearable Wristbands, Handheld Electronics, Business Equipment Housings, Healthcare Devices, Hand and Power Tools, Telecommunications and Business Machines
Acrylonitrile Butadiene Styrene (ABS)	Si-TPV2250 Series	Sports & Leisure equipment, Wearable Devices, Housewares, Toys, Portable Electronics, Grips, Handles, Knobs
PC/ABS	Si-TPV3525 Series	Sports Gear, Outdoor Equipment,Housewares, Toys, Portable Electronics, Grips, Handles, Knobs, Hand and Power Tools, Telecommunications and Business Machines
Standard and Modified Nylon 6, Nylon 6/6, Nylon 6,6,6 PA	Si-TPV3520 Series	Fitness Goods, Protective Gear, Outdoor Hiking Trekking Equipments, Eyewear, Toothbrush Handles, Hardware, Lawn and Garden Tools, Power Tools

Overmolding Techniques & Adhesion Requirements

SILIKE Si-TPVs Overmolding can adhere to other materials through injection molding. suitable for insert molding and or multiple material molding. Multiple material molding is otherwise known as Multi-shot injection molding, Two-Shot Molding, or 2K molding.

SI-TPVs have excellent adhesion to a variety of thermoplastics, from polypropylene and polyethylene to all kinds of engineering plastics.

When selecting an Si-TPV for an over-molding application, the substrate type should be considered. Not all Si-TPVs will bond to all types of substrates.

For more information regarding specific over-molding Si-TPVs and their corresponding substrate materials, please feel contact us.

Application

Si-TPV Modified silicone elastomer/Soft elastic material/soft overmolded material is an innovative approach for manufacturers of smart watch bands and bracelets that require unique ergonomic designs as well as safety and durability. It is an innovative approach for manufacturers of smart bands and bracelets that require unique ergonomic design as well as safety and durability. In addition, it is also widely used as a replacement for TPU coated webbing, TPU belts and other applications.

TPE is a styrene thermoplastic elastomer, a copolymer of butadiene or isoprene and styrene block polymerization, TPE has a comfortable soft touch, good abrasion resistance, aging resistance, easy to color, easy molding, molding, molding, and PC, ABS overlay molding firm environmentally friendly and non-toxic, does not produce allergic to human skin, can be said to be the common material for smart watch bands.

What are the advantages of Modified Soft Slip TPU compared with TPE?

Elasticity and softness: Modified Soft Slip TPU is usually stronger and harder than TPE, so it may be slightly inferior to TPE in terms of elasticity and softness, TPE is usually more soft and elastic.

Abrasion Resistance: Modified Soft Slip TPU has better abrasion and scratch resistance due to its soft, skin-friendly properties and is less prone to deformation or damage, whereas TPE is slightly less so.

Temperature Stability: Modified Soft Slip TPU is more temperature stable and maintains its physical properties over a wider range of temperatures, whereas TPEs can experience some changes in performance at extreme temperatures. Surface quality: Modified Soft Slip TPU for strap can give products more excellent surface quality, long time use is not easy to precipitate, not out of the oil sticky, and TPE use a long time, easy to get out of the oil sticky, affecting the quality of the product, is a Slip tacky texture non-sticky Elastomeric Materials.
In general, both TPU and TPE are suitable for watch band production, Silicone soft modified TPU has more wear-resistant, more scratch-resistant, non-separation of oil characteristics compared with TPE. Watch band manufacturers can choose suitable materials according to different needs. If you are interested in Silicone soft-modified TPU, welcome to contact us for sampling and testing.