Chloroprene-rubber base flame retardant adhesives

For fixing electric devices, with outstanding electrical properties.

Please select the product name :

SC121
SC12N

	SC12N
	For fixing electronic devices
	Computers/ AV/ Game machines/ Cellular phones
	UL94 V-0 Certified (No. E63260; not for use in current-carrying parts) High bonding strength ensuring tight fixing Highly viscous and thixotropic, permitting application to a vertical surface

Main component	Chloroprene rubber base
Color	Yellowish white
Viscosity (Pa.s)	10 to 17
Solid content (%)	44 to 48
Specific gravity	0.9 to 1.0
Diluent	Toluene, MEK etc.
St'd size	180 ml Tube/1 kg can or 15-kg can

Bonding and fixing of components in non-conductive positions
For bonding of materials soluble in toluene, MEK (such as polycarbonate, Noryl, ABS or acrylics), please contact us beforehand.

* Please be sure to avoid any use of these materials in electronic components that are to be energized electrically to prevent tracking or similar problems.
We recommend applying our polyester resin-based self-extinguishing adhesives SC608Z2 and SC608LVZ2.
[Precautions on the use of chloroprene rubber-based adhesives]

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1.Bonding characteristics (drying speed and open time)

Substrate:	Plywood/50 µm aluminum
Aging atmosphere:	25°C 50%RH
Aging atmosphere after bonding:	25°C 50%RH
Coated amount:	150 µm wet

2.Adhesive property (aging time and bonding strength)

Aging conditions after bonding:	25°C50%RH
Aging time:	Substrate = ABS / AL
Bonding strength:	Substrate = Plywood/Plywood

Test item/Day	1	2	3	4	5
Peeling strength(N/20mm) ABS/50 µm AL	30.4	26.5	29.4	25.5	19.6
Shear strength(N/cm²) Plywood/Plywood	298	392	431	Plywood fractured	Plywood fractured

* Complying with JIS S6040

3.Adhesive property (bonding strength at different temperatures)

Substrate:	Steel/Canvas
Degreasing:	Degreased by toluene, subsequently exposed to trichloroethylene vapor for 20 min, then dipped in liquid trichloroethylene for 20 min; the cycle repeated three times
Coating thickness:	Steel: First application 150gf/m²; dried for 10 min at 30°C; second application 200gf/m² Canvas: First application 150gf/m²; dried for 10 min at 30°C; second application 150gf/m²; dried for 10 min at 30°C; third application 250gf/m²

Substrate:

Steel/Canvas

Degreasing:

Degreased by toluene, subsequently exposed to trichloroethylene vapor for 20 min, then dipped in liquid trichloroethylene for 20 min; the cycle repeated three times

Coating thickness:

Steel:
First application 150gf/m²; dried for 10 min at 30°C; second application 200gf/m²

Canvas:
First application 150gf/m²; dried for 10 min at 30°C; second application 150gf/m²;
dried for 10 min at 30°C; third application 250gf/m²

After a five-minute open time following the last application, the adhesive layer was compressed at room temperature using a rubber roll. The layer was then dried for one hour at 60°C, cooled down to room temperature, and measurements were performed.

Test item	Substrate	2
Shear strength(N/cm²)	AL/AL	337
Shear strength(N/cm²)	Styrol/Styrol	178
Peeling strength(N/25mm)	Plywood/Plywood	33.3
Peeling strength(N/25mm)	SBR/Canvas	58.8

* Complying with JIS S6040

4.Electrical property

Dielectric constant ε (1MHz)	Dissipation factor tan δ (1MHz)	Dielectric loss (1MHz)	Volume resistance (1000V)
3.52	0.189	0.0537	1 x 10¹⁷Ω/cm

Application

Clean and dry the surface of the substrate before application of the adhesive.
Apply the adhesive uniformly, avoid forming too thick a layer. Apply the adhesive to both of the surfaces to be joined. This is not necessary for the simple fixing of a component.
Dry the applied film for a few minutes until it loses its stickiness, then join the two surfaces under sufficient pressure. The joined pair can be handled after a few hours. Depending on the temperature and material, about 80% of the maximum strength is reached after about 24 hours.

Storage

The product should be stored under conditions suitable for adhesives. Follow instructions in instruction manuals or as shown on the labels. The maximum shelf life of adhesives is one year. Use the lots out of a large quantity stored in order of age. Adhesives containing solvents are hazardous materials. Observe the provisions of fire prevention laws.

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Check before operation
Check the relevant material safety data sheet (MSDS) and instruction manuals for precautions required for operation.
Operation environment
- Keep ignition sources away.
- Use a local ventilator to ensure sufficient air circulation.
First aid
- Learn action to take from the MSDS and instruction manuals.
- In case of eye contact, vapor inhalation or swallowing, seek medical attention immediately.
Storage
Store the product in a tightly closed container in a predetermined place at room temperature avoiding direct sunlight.
Prohibition of unintended use
- Never use the product except as an adhesive.

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Note on the characteristic data given - Data on the characteristics of the products described in this page based on the results of evaluations carried out by the company. This does not guarantee that the characteristics of the product conform with your usage environment. Before use, review the usage conditions based on evaluation data obtained from the equipment and substrates actually used.