Rubber products are common items in daily life. In order to achieve better performance, it is often necessary to use a variety of rubbers in the rubber use process. As a professional rubber product manufacturer, the following is a common example of rubber mixing.

First, natural rubber + butadiene rubber
NR+BR
Ratio: 75 ~ 50 / 25 ~ 50
Objective: To improve the vulcanization temperature and improve heat resistance, cold resistance, elasticity and wear resistance.
Product: conveyor belt, rubber shoes

Second, natural rubber + styrene butadiene rubber
NR+SBR
Proportion: Any
Purpose: To improve the wear resistance of NR, and to improve the ozone crack resistance of the groove
Product: Tires and other products

Third, styrene butadiene rubber + butadiene rubber
SBR+BR
Proportion: Any
Purpose: to improve wear resistance, elasticity and cold resistance
Product: Tread

Four, styrene butadiene rubber + high styrene
SBR+ high styrene
Ratio: 75 ~ 50 / 25 ~ 50
Purpose: to improve wear resistance, tear strength and tensile strength
Sole and sponge glue

Five, styrene butadiene rubber + high density polyethylene
SBR+HDPE
Proportion: 100 / 5 ~ 20
Objective: To improve the process performance, reduce the scorch tendency and shrinkage of the rubber, and improve the wear resistance and ozone resistance of the vulcanizate.
Product: sole and sponge

Sixth, ethylene propylene rubber + butyl rubber
EPDM+IIR
Ratio: 50/50
Purpose: Improve tear resistance, heat resistance, ozone resistance; improve tread wear resistance
Products: tread, inner tube, etc.

Seven, ethylene propylene rubber + chlorobutyl rubber
EPDM+CIIR
Ratio: 50/50
Purpose: Improve ozone resistance
Product: sidewall

Eight, butadiene rubber + ethylene propylene rubber
Butadiene rubber + EPDM
Proportion: Any
Purpose: Improve heat resistance, ozone resistance, chemical resistance
Product: Tread

Nine, nitrile rubber + pvc
NBR+PVC
Proportion: Any
Objective: To maintain the oil and heat resistance of NBR; improve ozone resistance, wear resistance, flame resistance and dielectric properties
Products: oil resistant tape, shoes, hose, wire sleeve

X. Nitrile rubber NBR + phenolic resin
Proportion: Any
Objective: To improve the viscosity, hardness, wear resistance and strength of NBR
Product: Washer, lining

11. Nitrile rubber + natural rubber or styrene butadiene rubber
NBR+NR or SBR
Proportion: NR or SBR ≤ 40%
Objective: To improve the cold resistance of NBR and reduce the cost, but the other properties of NBR are slightly reduced.
Product: oil resistant sole, leather bowl

Twelve, nitrile rubber + neoprene
NBR+CR
Proportion: Any
Purpose: Improve weather resistance and ozone resistance
Product: Outdoor oil resistant products

Thirteen, nitrile rubber + ethylene propylene rubber
NBR+EPDM
Purpose: Improve weather resistance and ozone resistance

Fourteen, neoprene + natural rubber
CR+NR
Ratio: 80/20
Purpose: To improve the process performance of CR
Product: conveyor belt or cover tape

15. Neoprene + nitrile rubber
CR+NBR
Proportion: Any
Objective: To improve the sticking, pressing, calendering and oil resistance of CR
Sixteen, neoprene + butadiene rubber
CR+BR
Proportion: 90~60 / 10~40
Objective: To improve the cold resistance, wear resistance, elasticity, etc. of CR, and significantly improve the process performance of extrusion, calendering, sticking roller and scorch.
Product: Tape, shock absorbing rubber