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Product Information

【What is DAIREC?】
 “DAIREC” is the name of the reclaimed rubber product that is manufactured by Daiei Rubber Co, Ltd. At present, the question of recycling is a major social issue. Our company has from the very onset been aware of the limited resources available and for the last 40 years has been producing “DAIREC”, a recycled product that is a sign of our history and results.

  “DAIREC” is recycled unvulcanized rubber that has been produced by treating vulcanized rubber chemically and physically to remove its resilience and restore its adhesiveness and plasticity. It can undergo the same processes and sulfurization as new rubber which allows it to be used in the manufacture of rubber products.

  In comparison to new rubber, DAIREC’s has a superior adhesiveness, plasticity, Workability consistence, strength and aging resistance.

  In the Rubber Industry, DAIREC is not used by itself but is blended with other products and processed to give it an improved efficiency. It is used as the main ingredient to make glue for tapes, sealants and in this way it exhibits its adhesiveness and plasticity features. 

 In this way, DAIREC is widely used in File Wrapping material, Civil Engineering material and other Industrial Material.
　
【Characteristics of DAIREC】
Merits
　　●Less Power consumption in manufacturing
　　●Easier sheeting and extrusion processes
　　●Less degree of expansion or shrinking of the unvulcanized material
　　●Stable plasticity
　　●Lower susceptibility to heat
　　●Less heat generation during processing
　　●The DAIREC gives flattening quality to the compounds
　　●Less reversion
　　●Greater flow of rubber during press vulcanization process
　　●Higher aging resistance
　　●Higher oil resistance
　　●Less brooming by sulfur
　　●Less scorching

Demerits
　　●Lower dispersion rate of compounding agent
　　●Greater tension
　　●Less elasticity

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【Type of ＤＡＩＲＥＣ】

　　

　　ＤＡＩＮＡＲＥＣ　-----　natural rubber type

　　ＤＡＩＢＵＲＥＣ　-----　butyl rubber type

　　ＤＡＩＴＡＣ　　　 -----　butyl rubber type

　

ＤＡＩＮＡＲＥＣ

　

NAME CHEMICAL PROPERTIES MOONEY
VISCOSITY		 PHYSICAL PROPERTIES
ASH CONTENTS
(%)		 ACETONE EXTRACTION
(%)

ML1+4

100℃

TENSILE STRENGTH

(kg/cm2)

 ELONGTION
(%)		 HARDNESS SPECIFIC
GRAVITY
DAINAREC-TG 35～50 3～6 15～35 50～100

500～700

 45～55 1.20～1.35
DAINAREC-SI 35～55 5～10 25～45 50～100 400～600 45～55 1.25～1.40

　

　

　

ＤＡＩＢＵＲＥＣ

　

NAME CHEMICAL PROPERTIES MOONEY
VISCOSITY		 PHYSICAL PROPERTIES
ASH
CONTENTS
(%)

ACETONE EXTRACTION
(%)

ML1+4

100℃

TENSILE STRENGTH

(kg/cm2)

 ELONGTION
(%)		 HARDNESS SPECIFIC
GRAVITY
DAIBUREC-DF 3～15 5～20 40～60 50～100

450～650

 40～60 1.10～1.25
DAIBUREC-TS 3～15 10～25 25～45

　

　

ＤＡＩTAC

　

NAME CHEMICAL PROPERTIES PHYSICAL PROPERTIES
ASH
CONTENTS
(%)

ACETONE EXTRACTION
(%)

 　　PENETRATION（25℃） SPECIFIC
GRAVITY
DT-128N 5～15 10～25

70～100

 1.00～1.15