Product Introduction
ReboundPro is a recyclable thermoplastic elastomeric material. After heat setting at 110°C, it provides high elastic support, helping to protect the ankle and Achilles tendon while delivering a high-rebound wrapping feel. It offers stable shape elasticity, maintaining both elasticity during wear and clean, defined silhouette lines. In application, ReboundPro highlights the dynamic balance between elasticity and aesthetic contouring of the shoe.
ReboundPro is mainly used as a heel stabilizing material where elastic stability is required. According to the elasticity requirements of different footwear designs, various elastic performance grades can be selected to match specific needs. It is an ideal choice for footwear concepts that demand high levels of rebound and elastic support, especially in the heel counter area.
Product Advantages
As a high-elasticity product series, ReboundPro offers the following key benefits:
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After heat setting at 110°C, the molded lines are smooth and well-defined.
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It provides excellent rebound performance. According to SATRA TM83 test data, after 10 destructive flex cycles, the shape retention remains above 92%.
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It offers a temperature-responsive comfort effect, helping to reduce friction and prevent heel rubbing during wear.
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It has been adopted by numerous brands and has been applied in over 500 million pairs of shoes.
Product Variants
This high-performance elastic thermoplastic material is available in three variants:
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High Elastic
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Rebound
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Elastic
These variants are designed to meet different elasticity requirements in footwear. Brands can choose the appropriate grade according to the desired rebound level and performance of each shoe model.
Application Range
ReboundPro has been widely used by many brands in:
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Chunky sneakers
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Casual shoes
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Loafers
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Hiking shoes
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Outdoor waterproof shoes
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Casual running shoes
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Sport-casual shoes
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Training / retro trainer shoes
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Business-casual footwear
It has been validated in over 500 million pairs in real market applications.
Average recycled content: 50%
Standard thicknesses:
0.8 mm, 1.0 mm, 1.2 mm, 1.5 mm, 1.8 mm, 2.0 mm
Standard size:
1 m × 1.5 m
Product code:
VVAOL
Material Composition
ReboundPro is composed of:
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Polyesters
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Bio-based components
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Ethyl acetate-based polymers
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Polyurethane
Product Features
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Excellent shape retention
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95% recycled polyester fiber | Overall recycled content ≥ 20%
Product Advantages
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Simple, efficient, and fast operation with clean, residue-free results
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Ready to wear immediately after the shoe body has cooled
Heel Shaping Specifications
Process Parameter Guidelines
Heat Activation Process (Heat Mold / Hot Air)
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Working Temperature: 130°C to 160°C
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Pressing Time: 25-40 seconds (depending on equipment model, working conditions, and upper/lining material)
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Interface Temperature: Measured temperature between the heel and upper: 80°C-100°C
Cold Shaping Process
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Working Temperature: 5°C or lower
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Pressing Time: 25-40 seconds (depending on equipment model, working conditions, and upper/lining material)
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Interface Temperature: Measured temperature between the heel and upper: Must be below 40°C
Note: The lower the temperature of the component after cold shaping, the better the final shaping effect.
Cutting
The ReboundPro series products should be cut transversely along the widest width of the material. Multi-layer cutting is supported, with the number of layers depending on the material grade and the cutting equipment used.
Thinning (Slitting)
Slitting should be done on the reverse side of the material (opposite to the side facing up during cutting). To achieve the best results, it is recommended to use a rotary blade slitting machine and apply silicone-based lubricant or cool down the blade to prevent the blade from sticking to the material.
Pre-Lamination
Medium-temperature series products can be laminated with heel linings using appropriate lamination equipment. The use of hot melt adhesive for the lining provides the best results.
Pre-Shaping
To facilitate embedding and positioning, medium-temperature series products can be pre-formed, but the material must first be heated to 50°C-60°C. This temperature range allows the material to soften appropriately for shaping, while preventing premature activation of the hot melt adhesive, which could make the operation difficult.
Embedding Specifications
In the footwear manufacturing process, the CAYO team recommends sewing the edges of the heel part naturally to the upper. Using solvent-based adhesives to fix the heel position may negatively affect adhesive strength and shaping effectiveness.
Heel Molding
To achieve the best activation effect, it is recommended to use a heel molding machine equipped with a heated inner mold and airbag pressure device. Silicone pressure devices are also suitable.
For the best molding results, cold molds must be used. It is recommended to use cold molds at below 5°C combined with an airbag pressure device for cold shaping.
Toe Puff / Toe Cap Shaping Specifications
Heat Press Machine Parameter Settings
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Heating Top Plate Temperature: 120°C - 160°C (depending on equipment model, working conditions, and upper/lining material)
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Interface Temperature (measured temperature between the heel and upper): 90°C - 120°C
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Constant Pressure: 4.20 - 6.0 BAR (kgf/cm²)
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Pressing Time: 15-20 seconds
Sample Production Requirements
When using the adhesive edge bonding process, the shape of the toe cap component must closely fit the contour of the upper's edge.
When using hot-melt bonding, ensure the toe cap is positioned 8-10mm back from the edge of the upper’s edge. This ensures that, after the upper edge is bonded, the maximum range of the upper's edge can directly contact the insole.
Hot-Melt Bonding Process
Depending on the structure of the upper and the assembly process, either a curved press machine or a flat press machine should be used for processing.
The curved press hot-melt machine helps form a three-dimensional shape, making the upper edge bonding process easier to handle.
Note that a conveyor belt-type laminating machine cannot apply enough pressure on the toe cap, which will significantly reduce the effective bonding rate between the toe cap and the upper.
Last Shaping
The ReboundPro series achieves optimal processing results when used on a heel molding machine equipped with a preheating device and cold molds.
When the material is applied in the following manner:
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Embedded in a pocket sewn onto the last or stitched upper structure (e.g., strong edge bonding process),
ensure that the material is thoroughly activated before edge bonding and it is recommended to undergo thermal shaping.
Storage and Transportation Conditions
Store in a cool environment (< 25°C) and dry conditions (humidity < 60%). Avoid direct sunlight during storage.
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In summer, avoid transportation under direct midday sunlight at around 40°C.
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The temperature inside the transport container must not exceed 60°C.
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Stacking height should be no more than 2.5 meters.
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During hot seasons, it is safer to arrange transportation at night whenever possible.