Features

Various types of adhesion

1. Contact adhesion
   Adhesive is applied on both sides of the materials, which are put together after an open time of 5 to 30 minutes when the surface is dried up. This will provide adhesion featuring excellent initial strength without the need for temporary fixation.
2. Pressure-sensitive adhesion
   Extensive pressure-sensitive adhesion area in the curing process will allow wide-area adhesion of foams and sheets by coating on one side, depending on the conditions.
3. Reactivated adhesion
   Elastomer adhesive permits adhesion of the materials after the adhesive coated thereon is dried up and adhesive is reactivated by solvent and heat (about 100°C).
4. Heating and pressurized adhesion
   Adhesion of the materials in the same way as heat reactivated adhesion followed up immediately by heat pressing will provide adhesion featuring excellent adhesive strength and heat resistance.

Diversity in coating

1. Brush, spatula and special trowel
2. Air spray, air-less spray
3. Roll coater and curtain coater

Three big features of nitrile rubber

1. Excellent oil resistance
2. Superb adhesive property on plasticized polyvinylchloride
3. Good heat aging

Application

• Adhesion between rubber and metal	• Adhesion of foams such as foamed urethane and polyethylene (except for styrene)
• Adhesion of Glass wool and rock wool	• Adhesion of boards and metallic plate
• Adhesion of decorated panel and plywood	• Adhesion of soft polyvinylchloride product (only for nitrile rubber)

 

Chloroprene Rubber Cemedine 575

• Adhesive strength

Time to leave test piece (days)	1	3	5	10	New method
Adherend
Between vulcanized rubber and steel plate	2.7	2.5	3.3	2.8	Peeling strength (N/mm)
Between vulcanized rubber and melamine coated surface	2.2	2.9	2.9	4.4	Peeling strength (N/mm)
Between vinyl leather and plywood	2.3	3.2	3.2	4.9	Peeling strength (N/mm)
Between decorated panel and plywood	2.2	3.2	3.9	4.1	Tensile shear strength (N/mm2)

Note) Adhesion conditions: Coated on both sides, Open time of 10 min.

• Heat resistant peeling adhesive strength

(unit: N/mm)

Measurement temperature (°C)	25	40	60	80
Adherend
Between natural rubber and melamine coated steel plate	2.9	2.1	1.4	1.3

(Test method) After having been left at the room temperature for seven days, the test piece is heated at the specified test temperature for 30 minutes, and the strength is measured at that temperature.

 

• Open time and adhesive strength per day

 

 

Nitrile Rubber Cemedine 521

• Adhesive strength of Cemedine 521 for various types of adherends

(peeling strength N/mm)

Time to leave test piece (days)		1	3	7	14	30
Adherent	Adhesion method
Between vinyl sheet and vinyl sheet	Open time 35 min.	1.3	2.2	2.8	3.3	3.5
Between vinyl sheet and iron	Open time 30 min.	1.6	2.7	3.5	2.9	4.9
Between vinyl sheet and melamine coated surface	Open time 35 min.	1.4	2.6	3.1	4.7	4.5
Between vinyl sheet and plywood	Open time 30 min.	2.8	4.2	3.8	3.5	4.2
Between nitrile rubbers	Open time 30 min.	2.6	3.1	4.1	4.0	4.2
Between nitrile rubber and iron	Open time 40 min.	3.0	2.5	2.3	2.2	2.1
Between natural rubber (surface treated) sheet and iron	Open time 40 min.	1.3	1.1	1.1	1.1	1.3

 

List of Elastomer Adhesives