Chloroprene-rubber base flame retardant adhesives
For fixing electric devices, with outstanding electrical properties.
Please select the product name :
- SC121
- SC12N
| SC121 | |
| For fixing electronic devices | |
|
|
|
| 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. |
| Container | 180ml Tube/1kg can or 15kg 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]
SC121 contains solvent. Apply the product to the substrate, and wait for about three minutes ("open time") to let the solvent evaporate partially before actual bonding. The open time depends on ambient temperature. The bonding strength increases as the solvent evaporates.
1.Residual solvent in the adhesive and drying time after application
| Substrate: | Glass-epoxy plate/Glass-epoxy plate |
|---|---|
| Coated amount: | 300 µm thick wet, on both sides |
| Open time: | 3 min |
| Bonding: | 49N/cm,3 min |
| Peeling speed: | 10mm/min |
| Aging atmosphere: | 20°C 60%RH |
(n/cm2)
| Initial | 3 hrs | 1 day |
3 days | 7 days | 10 days | 15 days | |
|---|---|---|---|---|---|---|---|
| Shear strength | 10 to | 139 |
191 | 243 | 270 | 293 | 277 |
| Substrate: | Steel/Canvas |
|---|---|
| Peeling angle: | 180° |
| Peeling speed: | 50mm/min |
| Aging atmosphere: | 60°C 12hr |
(n/cm2)
| -20 | 0 | 20 | 40 |
60 | 80 | 100 | 120 | |
|---|---|---|---|---|---|---|---|---|
| SC121 | 39.2 | 54.9 | 65.7 | 72.5 | 66.6 | 53.9 | 21.6 | 14.7 |
| Conventional type | 39.2 | 56.8 | 68.6 | 68.6 | 62.7 | 39.2 | 17.6 | 4.9 |
| Coated amount: | 300 µm wet |
|---|---|
| Open time: | 3 min |
| Bonding: | 49N/cm |
| Initial: | 60°C 1 hr |
| Peeling speed: | 10mm/min |
- CF : Cohesive failure
- AF : Adhesive interface failure
- ACF : CF+AF
(n/cm2)
| Substrate | Initial | After aging | Aging condition |
|---|---|---|---|
| Styrol/Styrol | 246ACF | 247ACF | 60°C 100 hrs |
| ABS/ABS | 219ACF | 329ACF | |
| Acrylic board/Acrylic board | 246ACF | 286ACF | |
| PVC/PVC(rigid) | 241ACF | 290ACF | |
| Paper phenol board/Paper phenol board | 343ACF | 364ACF | 100°C 100 hrs |
| Glass-epoxy circuit board/ Glass-epoxy circuit board | 270ACF | 375ACF | |
| Copper/Copper | 266ACF | 319ACF | |
| Iron/Iron | 221ACF | 466ACF | |
| Aluminum/Aluminum | 199ACF | 366ACF | |
| Glass-epoxy circuit board/ glass-epoxy circuit board | 270ACF | 392AF | 100°C 500 hrs |
| Copper/Copper | 266ACF | 270ACF |
|
| Glass-epoxy circuit board/ glass-epoxy circuit board | 270ACF | 368ACF | 40°C 90% 500 hrs |
| Copper/Copper | 266ACF | 368ACF |
5-1.Electrical property
Insulation resistance increases as the solvent evaporates. Insulation resistance was measured on a test circuit pattern after JIS Z3197 formed on a glass-epoxy substrate coated by 35µm -thick copper foil.
| Coated amount: | 300 µm wet |
|---|---|
| Aging time: | 3 min |
- [ Measured after charging with 500 V for 1 min ]
| Aging time | 1 min | 3 min | 5 min | 10 min | 30 min | 60 min | 24 hrs |
|---|---|---|---|---|---|---|---|
| Insulation resistance | 6.0x108 | 1.0x109 | 6.0x1010 | 1.0x1011 | 2.0x1012 | 7.0x1012 | 1.0x1013 |
5-2.Stability of insulation resistance
- [Comb-shaped electrode JIS Z3197]
- [Conductor space 1.27mm]
- [Measured after charging with 500 V for 1 min]
| Initial | After aging | Aging condition |
|---|---|---|
| 1.0 x 1013 | 1.0 x 1011 1.0 x 108 |
100°C 250 hrs 500 hrs |
| 2.0 x 1012 4.0 x 1011 3.0 x 1011 |
40°C 90% 96 hrs 250 hrs 500 hrs |
6. Impact force resistance
- A diskrete capacitor 2 g or 10 g in weight was bonded on a glass-epoxy circuit board (5 x 5 cm in size). The assembly was aged for seven days at 20°C in an atmosphere of 60% in RH. The assembly was then dropped from a height of one meter.
| Capacitor weight | Number of trial falls | Result |
|---|---|---|
| 2g | 10 times | No change |
| 10g | 10 times | No change |
7.Expansion ratio & inflection point
- Expansion ratio was measured by the compression loading method using a Rigaku thermomechanical analyzer (TMA).
| Expansion ratio α | Inflection point °C |
|---|---|
|
7.97 x 10-5/°C(20 to 112°C) -1.43 x 10-4 /°C(112 to 150°C) |
112 |
8.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.
- 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.
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.
