Flatter release profile, Low misting with medium or high speed
Release Coating modifier
Siemtcoat® SF190MR
General
A three components solventless system special design for Glassine PEK, CCK ect.substrate Coating.
- Siemtcoat® SF190MR (Main polymer）
- Siemtcoat® 8982（Crosslinker）
- Siemtcoat® 5000 (Catalyst)
Application
- The SF190MR is special design for Glassine PEK,CCK ect. substrate coating.
- 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.
Advantage
- Long bath life and good anchorage performance with additive add in
- Low silicon migration
- Suit for different type adhesive system
Properties
Processing
Siemtcoat® SF190MR Technical Data Sheet
- When applicate SF190MR into Siemtcoat system, please following
- Bellowing ratio and mixing process ：
. 1- Weight the main polymer SF190MR ------------------------ 100p
. 2- Weight the crosslinker
- Siemtcoat® 8982------------------------ 3.0-3.4p
. 3- Mix the crosslinker and make sure it was dispenser well.
. 4- Weight the catalyst Siemtcoat® 5000 and add in during mixing Siemtcoat® 5000--------------------- 0.9-1.2p
(Attention： do not mix the crosslinker and catalyst directly as dramatic reaction would happen.)
- 5- Mix until the catalyst even.
- The detail information could consult us for the formulation advice.
Bath life
- All Siemtcoat system bath life is relative to the formulation, equipment, mixing
- Process, temperature and environment. SF190MR additive would not change the
- Siemtcoat original bath life (Normally about 5 hours at 40℃)
Release force
- Release force performance is relative for many factors.
- We measure the release force with different substrate and adhesive to define the
- Release force performance. While the standard release force measure could use
- Standard tape to measure.
- Typical release force performance:
- Tesa Tape 7475 (23℃) — 5 to 20 g/25mm （0.3m/min peeling speed）
Curing
- Siemtcoat system curing results is relative the formulation, quality for substrate,
- Curing temperature and oven efficiency. We acquired the following results :
Siemtcoat® SF190MR Technical Data Sheet
(Curing time define as the minimum curing time without smear, no rub-off and migration of release coating layer)
Package
Shelf-life
- Siemtcoat SF190MR should be storage in a closed container at -20°C to +30°C temperature.
- Siemtcoat standard shelf-life is 24 months。The expired day is marked on label for each drum.
Safety
- Please referents Siemtcoat® SF190MR，8982，5000 MSDS.
