What is Rebound Resilience?
Ranking of Rebound Resilience of Resins & Rubbers
(in ascending order of rebound resilience)
RLR (Rubber-Like Resin):
A Revolutionary Material Combining
High Tensile Strength and Elongation

Ranking of Rebound Resilience of Resins & Rubbers

What is Rebound Resilience?

Rebound Resilience indicates the percentage of input energy that an elastic material such as rubber or elastomer returns elastically (rebounds) when subjected to impact or temporary deformation.
Materials with low rebound resilience excel at shock absorption and vibration damping, though they may require careful consideration regarding internal heat generation and fatigue under repeated loading. Whether high or low resilience is preferable depends entirely on the specific application—design considerations should comprehensively evaluate required performance characteristics (vibration control, bounce properties, fatigue resistance, etc.) along with environmental conditions.

Ranking of Rebound Resilience of Resins & Rubbers (in ascending order of rebound resilience)

Rank	Material/Classification	Resilience Modulus (approx.)	Characteristics and Applications
1	RLR（Rubber-Like Resin）	4.5%	Combines softness and stretchability with impressive toughness. Highly resistant to puncturing—remains intact even when pierced with a screwdriver. Excellent scratch resistance and shock absorption properties.
2	Hard Plastics （PP, PE, ABS, PC, etc.）	Several to 10+%	Exhibit minimal elastic deformation, tending toward brittle fracture or plastic deformation rather than resilient behavior. Typically evaluated using Izod impact strength rather than resilience modulus.
3	TPO（Polyolefin TPE）	10〜40%	Blends of polypropylene and EPDM rubber. Commonly used in large molded products such as automotive bumpers, exterior components, and appliance housings. Relatively low resilience, prioritizing deformation absorption in most applications.
4	EPDM（Ethylene-Propylene Rubber）	20〜50%	High weather and ozone resistance, used in automotive weather strips. Lower resilience than Natural Rubber or Butadiene Rubber, though dynamic performance can be enhanced through specialized compounding.
5	NBR（Nitrile Rubber）	20〜50%	Excellent oil and chemical resistance, widely used in industrial applications such as gaskets and hoses. Resilience can be improved through formulation but typically doesn't reach levels comparable to SBR.
6	SBR（Styrene-Butadiene Rubber）	30〜60%	The second most commonly used synthetic rubber after Natural Rubber. Applied in applications requiring abrasion resistance and elasticity such as tires and rubber belts. Not as resilient as BR or NR, but offers an excellent balance of cost and processability.
7	TPU（Thermoplastic Polyurethane）	30〜60%	Combines high abrasion resistance and mechanical strength with moderate elasticity. Commonly used in shoe soles, casters, and protective pads. Resilience varies significantly with hardness and formulation.
8	TPE-S（SEBS-based）	40〜70%	Flexible and elastic material used in grip components and seals. Often exhibits lower heat and oil resistance compared to TPU, though some formulations offer excellent viscoelasticity and initial tack.
9	NR（Natural Rubber）	60〜80%	Characterized by high elasticity and fatigue resistance. Widely used in tires, vibration-dampening components, and industrial rollers. Requires compounding enhancements to improve resistance to temperature, ozone, and oils.
10	BR（Butadiene Rubber）	70〜90%	Exhibits exceptionally high resilience among rubber materials. Used in sports balls, shoe soles, tires, and other applications requiring significant bounce. Often reinforced with carbon black to improve abrasion resistance and tear strength.

*Please note that the values presented in this ranking are general guidelines only. Actual values may vary significantly depending on the manufacturer, specific grade, and formulation.

RLR (Rubber-Like Resin): A Revolutionary Material Combining High Tensile Strength and Elongation

Traditional resin materials have struggled to balance flexibility and durability. To overcome this challenge, we've developed Rubber-Like Resin (RLR), which combines rubber-like flexibility with exceptional durability.

This innovative material features superior elasticity and scratch resistance, while also providing excellent vibration absorption and chemical resistance. Since it cures at room temperature, no heating furnace is required—contributing to energy efficiency. RLR can be utilized across diverse applications, from electronic component coatings to construction materials and automotive parts.

Key Advantages of Rubber-Like Resin Compared to Urethane Materials

Learn More About Rubber-Like Resin

Impact absorption comparison

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