Super-X No.8008
Cemedine Super-X is an epoch-making one-part quick curing adhesive having three significant features which are said to be ideal properties of the adhesives; "pressure-sensitive adhesion", "elastic adhesion" and "solventless adhesion".
Features
| 1. Pressure-sensitive adhesion | Curing reaction is caused by moisture absorbed from the air. Pressure-sensitive range is reached in this curing process about 10 min. after application. If adherends are put together during this time, they bound instantaneously as in the case of rubber contact adhesive, eliminating the need for temporary fixation. |
|---|---|
| 2. One-part solventless agent providing quick curing at normal temperature | Easy-to-use, safe, and clean adhesive featuring one-part solventless agent capable of quick curing at normal temperature is provided. |
| 3. Adhesive property over an extensive range | Super-X products allow for adhesion of various types of plastics, rubbers and ceramics over an extensive range, moreover different types of metals. These products provides excellent adhesion over a very extensive range of materials, eliminating the need for selecting a particular adhesive for each type of the different materials, as in the case of conventional agents. |
| 4. Durability | The Super-X as elastic adhesives do not peel off. Once materials are adhered, the Super-X provides durability in the range from low temperature (-60°C) to high temperature (120°C). Because of the rubber state of the hard film, the Super-X follows the changes of adherents such as expansion and shrinkage sufficiently. |
Super-X conceptual diagram
Application
| ? Adhesion required to have initial adhesive strength | ? Adhesion of different types of materials having different thermal expansion coefficients |
| ? Adhesion required to have durability due to repeated heating, cooling and vibration | ? Electrical contact failure countermeasure product |
Adhesive strength for various types of adherends
| Classification | Adherend | Tensile shear adhesive strength after 7-day curing (N/mm2) | |
|---|---|---|---|
| Open time, 3 min. | Open time, 25 min. | ||
| Metal | Steel plate (SPCC, SPCD) | 3.92 | 3.92 |
| Aluminum (*1) | 4.21 | 4.12 | |
| Stainless steel | 4.21 | 3.92 | |
| Copper | 4.51 | 4.21 | |
| Plastics | Polycarbonate | 4.31 | 3.23 |
| Bakelite | 4.21 | 54.02 | |
| ABS | 2.45 | 1.96 | |
| Plasticized polyvinylchloride | 3.92 | 3.14 | |
| Styrene | 2.74 | 2.25 | |
| Acryl | 2.94 | 2.16 | |
| 6-nylon | 2.84 | 2.65 | |
| FRP (*2) | 4.02 | 2.94 | |
| Polyethylene foam (*3) | 0.98 | - | |
| Polypropylene (*4) | 2.45 | - | |
| PEEK (polyether ketone) | 3.14 | - | |
| PES (polyether sulfone) | 3.82 | - | |
| PSF (polysulfone) | 3.53 | - | |
| PET (polyethyleneterephthlate) | 1.67 | - | |
| PPS (polyphenylene sulfide) | 3.72 | - | |
| PPO (polyphenylene oxide) | 4.41 | - | |
| PAR (polyarylate) | 4.12 | - | |
| Oxybenzoyl polyester | 2.25 | - | |
| Others | Slate | 1.86 | 1.67 |
| Plywood | 2.65 | 3.14 | |
Conditions: Coated on both sides, 50μm thick (one side), tension speed between adherends: 50mm/min.
- Note:
- *1 and *2: Surface preparation will cause adhesive strength to become uneven; it must be confirmed in advance.
*3: Surface preparation by exposure to ultraviolet ray.
*4: Primer (Cemedine PP-5) to be used.
| Classification | Adherent | Peeling adhesive strength after 7-day curing (N/mm) |
|---|---|---|
| Rubber | Natural rubber | 0.88 Substrate failure |
| NBR | 2.36 Cohesion failure | |
| Silicone rubber | 0.84 Substrate failure | |
| SBR | 2.36 Substrate failure | |
| EPDM | 0.80 Adhesion failure | |
| EPDM (*) | 2.36 Cohesion failure | |
| Chloroprene rubber (CR) (*) | 0.72 Adhesion failure | |
| CSM (chlorosulfuric oilyethylene) (*) | 0.56 Adhesion failure |
(*): Degreasing by toluene after treatment by sand paper (#120).
Chemicals resistance| Chemicals | Tensile shear strength after dipping in chemicals (N/mm2) |
|---|---|
| Unprepared | 4.31 |
| Water | 3.63 |
| Acetic acid (1% water solution) | 3.72 |
| Acetic acid (10% water solution) | 1.96 |
| Sulfuric acid (3% water solution) | 4.41 |
| Sulfuric acid (30% water solution) | 4.02 |
| Sodium hydroxide (1% water solution) | 4.41 |
| Sodium hydroxide (10% water solution) | 4.51 |
| Machine oil (Idemitsu: Mechanic Oil) | 4.21 |
| Salt (10% water solution) | 4.31 |
| Methylethylketone (*) | 0.29 |
| n-hexane (*) | 0.78 |
(Conditions): Coated on both sides, 50μm thick (one side), open time 3 min.
Stainless steel and stainless steel Pressing: one day for clip Curing: 7 days
Number of days to be dipped in chemicals: 7 Tensile speed: 50mm/min.
* Deterioration of solvent is observed, but no problem with short-time contact, for example, in washing.
Initial curing speed
Tensile shear adhesive strength, after repeated heating and cooling
Tensile shear strength on each temp
Tensile shear adhesive strength after heat aging
List of Super X Adhesives
| Product name | Super X No.8008 | Super X No.8008 black | Super X No.8008 clear | Super XL black | |
|---|---|---|---|---|---|
| Main component | Special polymer containing silyl group |
Special polymer containing silyl group |
Special polymer containing silyl group |
Special polymer containing silyl group | |
| Appearance | White paste | Black paste | Light yellow translucent paste |
Black paste | |
| Viscosity (Pa?s/23°C) | 90 | 90 | 65 | 24 | |
| Specific gravity (g/cm3) | 1.26 | 1.26 | 1.07 | 1.24 | |
| Tack free time | 11 | 11 | 8 | 11 | |
| Tensile shear adhesive strength (N/mm2) | 3.7 | 3.7 | 3.4 | 3.2 | |
| T type peeling adhesive strength (N/mm) | 2.5 | 2.5 | 1.7 | 2.4 | |
| Curing properties |
Hardness (Shore A) | 42 | 42 | 45 | 31 |
| Glass transfer point (°C) | -63 | -63 | -64 | -68 | |
| Breaking strength (N/ mm2) | 1.8 | 1.8 | 1.6 | 0.9 | |
| Breaking extension (%) | 220 | 220 | 150 | 300 | |
| Linear expansion coefficient | 2.1×10-4 | 2.1×10-4 | 1.8×10-4 | 2.4×10-4 | |
| Electric characteristics |
Volume resistivity (Ω?cm) | 2.0×1011 | 2.0×1011 | 9.0×1011 | 5.0×1011 |
| Dielectric constant (100Hz) | 0.2 | 0.2 | 0.2 | 0.2 | |
| Dielectric loss tangent (100Hz) | 0.03 | 0.03 | 0.10 | 0.06 | |
| Formaldehyde grade | |||||
| Capacity standards | 170g 333ml | 170g 333ml | 333ml | 170g 333ml | |
Adhesive for electrical components SX720 (W, WH, B, and BH)
Application
- Nonflammable product (UL94V-0 listed). (File No.E178790)
- One-part elastic adhesive capable of curing at normal temperature and humidity.
- Quick initial adhesion, high tack power for various types of materials, and excellent durability.
- Safe and global environment-friendly adhesive.
- Electrical contact failure countermeasure product.
- Contains no low molecular siloxane component.
- Employs no halogen-based, antimony oxide, or phosphorus-based materials.
- Employs no volatile solvents.
| ? Fixing of circuit boards such as condenser and coil | ? Sealing of power supply and transformer for insulation |
| ? Sealing of electronic components for waterproofing |
List of SX720 Adhesives
| Product name | SX720W | SX720WH | SX720B | SX720BH | |
|---|---|---|---|---|---|
| Main component | Special polymer containing silyl group |
Special polymer containing silyl group |
Special polymer containing silyl group |
Special polymer containing silyl group | |
| External appearance | White paste | White paste | Black paste | Black paste | |
| Viscosity (Pa?s/23°C) | 45 | 70 | 45 | 70 | |
| Specific gravity (g/cm3) | 1.53 | 1.55 | 1.53 | 1.55 | |
| Tack free time | 8 | 9 | 8 | 9 | |
| Tensile shear adhesive strength (N/mm2) | 3.9 | 3.4 | 3.9 | 3.4 | |
| T type peeling adhesive strength (N/mm) | 1.4 | 1.3 | 1.4 | 1.3 | |
| Curing properties |
Hardness (Shore A) | 62 | 66 | 62 | 66 |
| Glass transfer point (°C) | -67 | -65 | -67 | -65 | |
| Breaking strength (N/mm2) | 2.4 | 2.1 | 2.4 | 2.1 | |
| Breaking extension (%) | 175 | 170 | 175 | 170 | |
| Linear expansion coefficient | 1.1×10-4 | 1.1×10-4 | 1.2×10-4 | 1.2×10-4 | |
| Electric characteristics |
Volume resistivity (Ω?cm) | 2.0×1011 | 2.0×1011 | 2.0×1011 | 2.0×1011 |
| Dielectric constant (100Hz) | 0.3 | 0.3 | 0.4 | 0.4 | |
| Dielectric loss tangent (100Hz) | 0.11 | 0.32 | 0.12 | 0.32 | |
| Thermal conductivity (W/m?k) | 0.97 | 0.99 | 0.97 | 0.99 | |
| Capacity standards | 200g 333ml |
200g 333ml |
200g 333ml |
200g 333ml | |