Products
PP Shim
Use the current optical materials (Polarizing plate , Diffusion film, ITO film, Brightening film to conduct the cutting process, generally use the shim with PET material to conduct stamping, although the PET has stronger rigidity, it will be more leveled when laying flat, with strong rigidity the toughness is also relatively less, so during stamping, it has to have a deeper tool mark, also the bumps extruded on the PET Shim surface produced by the tool mark when stamping, those bumps are fatal for the optical grade products.
Product description

◣The history of developing optical grade polarizing plate stamping PP Shim
Use the current optical materials (Polarizing plate , Diffusion film, ITO film, Brightening film to conduct the cutting process, generally use the shim with PET material to conduct stamping, although the PET has stronger rigidity, it will be more leveled when laying flat, with strong rigidity the toughness is also relatively less, so during stamping, it has to have a deeper tool mark, also the bumps extruded on the PET Shim surface produced by the tool mark when stamping, those bumps are fatal for the optical grade products. 
Therefore, Sun Toward Tech spent tens of millions of funds, finally developed the optical grade stamping PP shim, since PP is tougher, it is not easy to produce tool marks during stamping, with longer service life, the cost is also relatively lower. PP processing is better, can add any modifier to improve its material property and change the color, PP has a wider range of use and recyclable and reusable

◣PP Shim Product Features
Length: Can be produced according to the requirement, the current longest length sold on the market is 300M, Sun Toward Tech already has products in the specifications of 900M, that can save the time of the changing line, shorten the production line time.
Thickness: Can be produced according to the requirements, Sun Toward Tech already has products in with the specifications of 300μm, 400μm and 500μm.
Price: Price is 1.5 times lower than the PET raw materials price in the market and has high added value.
Materials: The Materials have more toughness, not easy to produce tool marks during stamping, longer service life.
Environmental Protection: Sun Toward Tech can recycle scraped PP Shim. The materials used in PP Shim are first grade materials; therefore it can be recycled and re-used in other products to reduce the cost of use.

PET surface is harder and lacks elasticity, the tool marks left on the surface during cutting will open up and cannot be recovered, for repeated cutting, it is easy to produce fiber filaments and block foreign objects, causing crush damage on the bottom surface of the optical materials, easy to deform and break if using too many number of tools.

PP-Lumirror material has good toughness, with elastic characteristics, the tool marks left on the Lumirror surface during cutting are recoverable, relatively less filament and foreign object when repeated cutting, better PP impact resistance itself, also not easy to break, long service life, so it can reduce the crush damage on the surface of optical materials.

◣PP and PET cutting surface and section patterns

◣Sun Toward Tech Advantages (High Flexibility)
The advantage Sun Toward Tech has that no other industry has is that Sun Toward Tech has a strong R & D department and the most state-of-the-art machinery equipment. If there are any requirements and issues on the products, Sun Toward Tech can solve all the problems and provide the products that meet the customer's requirements.

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