A stable solventless release coating for paper with high speed and low misting
Solventless Silicone Release Coating SF 180MR
SF180MR is a special design for paper substrate, such as Glassine PEK, CCK ,etc. It’s a high-speed and low misting product, coating speed is significantly improved, suitable for 5 or 6 rolls coating. The traditional SF300 silicone release coating is suitable for the coating speed below 350m/min. With the improvement of the coating efficiency by the market, should consider the low misting and physical properties more comprehensively. The below properties of SF300 and SF180MR is for your reference.
| Basic properties | ||
| Item | SF300 | SF180MR |
| Lowest curing temperature (4 seconds) | 170℃ | 160℃ |
| Residual rate(%) | 92.5 | 93.8 |
| RF-RT(g/in) | 7.2 | 9.0 |
| RF-70(g/in) | 17.1 | 19.7 |
| Note: RF-release force; RF-RT room temperature release force; RF-70 aging release force; test speed(low speed) 0.3m/min; | ||
SF180MR high-speed coating has better advantages, can improve the coating environment significantly, greatly improve the health of people and environmental friendly. Moreover, the release paper and label produced by SF180MR have stable performance, high speed and low peel property which can meet the high-speed labeling requirements of downstream customers.
| High speed release force | |||||
| Release force(g/in) room temperature | 0.3m/min | 30m/min | 100m/min | 150m/min | 300m/min |
| SF300 | 7.2 | 88.5 | 138.1 | 148.5 | 152.3 |
| SF180MR | 9 | 76.68 | 117.1 | 123.9 | 118.7 |
| other | 9.5 | 82.2 | 112.5 | 132.4 | 121.3 |
| Appearance | Clear Liquid |
| Active（%） | 100 |
| Vis（mm²/s, 25℃） | 240 |
| Density (g/cm³) | 0.97 |
Advantage:
Flatter release profile
Low misting with high peel speed
Good curing property
Stable release release
Long bath life and good anchorage performance with additive add in
Low silicone migration
Suit for different type adhesive system
A three components solventless system:
Siemtcoat® SF180MR (Main polymer）
Siemtcoat®8982（Crosslinker）
Siemtcoat®5000 (Catalyst)
The dosage of different component should be adjusted base on different process
condition and application. After mixed components even, the coating on the substrate
surface to curing and achieved the target release profile.
