Siemtcoat® SF180MR

Siemtcoat^® SF180MR

A Solventless Silicone Release  Coating for High Speed Coating Machine

Siemtcoat® SF180MR is a solventless silicone release coating, designed for high-speed application on diverse substrates like Glassine, PEK, and CCK. It excels with rapid coating speeds, low misting, and is optimized for 5-roll or 6-roll coating machines. This eco-friendly product ensures even coating, boosts efficiency, minimizes waste, making it perfect for large-scale, sustainable production

General

A three-component solventless system, specially designed for Glassine, PEK, CCK, ect. substrate coatings.

We recommend the following formulas:

Siemtcoat® SF180MR-Base 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.

Advantages :

Low misting with high speed

Fast curing with good curing property, such as low silicone migration.

Flatter release profle at different peeling speed

Long bath life and good anchorage performance with additives

Suitable for in-line and off-line coating

Suitable for various adhesive systems

Applications :

Self-adhesive labels

Release paper and tapes

Processing

When applying Siemtcoat® SF180MR into the Siemtcoat system, please strictly adhere to the following mixing procedure:

1.  Weigh the base polymer Siemtcoat® SF180MR---XX parts.
2. 2. Weighthe crosslinker Siemtcoat® 8982---XX 
3.  Add the weighed crosslinker and thoroughly mix to ensure complete dispersion.
4.  Weigh the catalyst Siemtcoat® 5000---XX parts, and add it during mixing.

    (Attention: Do not mix the crosslinker and catalyst directly, as a dramatic reaction will occur.)

5.  Continue mixing until the catalyst achieves a uniform distribution throughout the mixture.

For detailed formulation guidance, feel free to contact us.

Bath life

The bath life of all Siemtcoat systems depends on formulation, equipment, mixing process, temperature, and environment. Siemtcoat® SF180MR only does not alter its original bath life, typically lasting about 5 hours at 40℃.

Release force

Release force performance depends on multiple factors.

We measure release force using different substrates and adhesives to define its characteristics. 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 (0.3 m/min peeling speed)

Curing

The curing results of the Siemtcoat system depend primarily on the formulation, substrate quality, curing temperature, and oven efficiency. We obtained the following results:

(Curing time is defined as the minimum curing duration without any smear, rub-off, or migration of the release coating layer.)

Package

Shelf-life

Siemtcoat® SF180MR  should  be  stored  in  a  closed  container  at  -20°C  to  +30°C temperature.

Siemtcoat standard shelf-life is 24 months.

Safety

Please refer to the Siemtcoat® SF180MR/8982/5000 MSDS.  

SF300 vs SF180MR

With the improvement of the coating efficiency by the market, should consider the low misting and physical properties more comprehensively. While the traditional SF300 silicone release coating is suitable for the coating speed below 350m/min. So the SF180MR will be a better choice. The below properties of SF300 vs SF180MR is for your reference.

The SF180MR high-speed coating offers significant advantages, notably enhancing the coating environment and greatly improving both human health and environmental friendliness. Additionally, the release paper and labels produced using SF180MR exhibit stable performance, high-speed application, and low peel properties, meeting the high-speed labeling demands of downstream customers.