+86 17398029827

Base polymer

Siemtcoat®  Silicone Release Coating

Topwin, a subsidiary of Wynca Group, specializes in manufacturing silicone-based functional products and stands out as a distinguished technical service provider.

Siemtcoat® serves as an efficacious agent, helping the adhesive release easier from the backing materials (paper, film, other substrates) . The users can select the optimal product for their specific application or intended purpose from our line of products, which includes solventless, solvent-based, emulsion formulations. Silicone Release Coating systems consist of base polymer, crosslinker, catalyst and other additives. Widely used in label stock,  envelopes, diversified tapes, bakery paper and foodstuff package, commercial graphics art, security signage and outdoor advertising, hygienic application such as baby diaper, feminine hygiene and adult incontience products, industry application for roof coverings, pipe and thermal insulation, medical application for body electrodes, adhesive bandages, wound dressings, surgical covers, ECG, etc.

Solvent Silicone Release Coating

 Items Product 
Grades
Silicone Active
Ingredient (%)
Viscosity
(25℃,mPa.s)
Substrate Release Force
(g/25mm)
Subsequent 
Adhesion
Migration 
Properties
Key 
Features
Packaging

Thermal Cure,
Solvent Based

Siemtcoat® 
SC5210
30 7000 Paper 5-20 80-85
Low 
Migration
Three components,
General purpose, Light release force
1000Kg/IBC Drum;
180Kg/ Iron Drum.
 Siemtcoat® 
SC5511
30 11000 Paper 5-15 83-87
Low 
Migration
Three components,
Stable release force, High adhesion, Suitable for various substrates
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SC5512
30 9000
PET, PP,
PE Film
5-15 83-87
Low 
Migration
Three components,
High adhesion, Stable peel force
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SC5516
30 9000 PE Film 5-15 75-83
Low 
Migration
Three components,
Light release force, Low temperature cure, Suitable for various substrates
1000Kg/IBC Drum;
180Kg/ Iron Drum.
 Siemtcoat® 
SC5532
30 13000
PE Film,
OPP Tape
15-25 75-83
Low 
Migration
Three components,
Low temperature cure, High adhesion
1000Kg/IBC Drum;
180Kg/ Iron Drum.


Remark
  . Solvent type silicones have a limited usage due to solvent problem.
  . Solvent type silicones are dangerous cargos and needed to be shipped as dangerous shipment.

Solventless Silicone Release Coating

 Items Product 
Grades
Silicone Active 
Ingredient (%)
Viscosity
(25℃,mPa.s)
Substrate Release Force
(g/25mm)
Subsequent 
Adhesion
Migration 
Properties
Key Features Packaging
Thermal Cure,
Solventless
Siemtcoat® 
SF300
100 350 Paper 5-15 90-95
Low 
Migration
Threecomponents,
General purpose, Stable peeling force, Suitable to sensitive adhesives
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SF300H
100 350 Paper 5-15 90-95
Low 
Migration
Three components,
Stable release force, High adhesion, Suitable for double-sided coated paper
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SF180MR
100 200 Paper 5-20 90-95
Low 
Migration
Three components,
Flatter release profile, Low misting with high speed
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SF190MR
100 300 Paper 5-20 90-95
Low 
Migration
Three components,
Flatter release profile, Low misting with medium or high speed
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SF500MR
100 300 Paper 5-20 90-95
Low 
Migration
Three components, 
Flatter release profile, Low misting with high speed
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SF501
100 320 Paper 5-20 90-95
Low 
Migration
Three components,
Stable release force, High adhesion, Suitable for double-sided coated paper
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SF211
100 350 Paper 3-5 80-85
Low 
Migration
Three components,
Ultra-low release force, Higher adhesion
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat®
SF311
100 500 Paper 10-20 90-95
Low Migration
Three components,
Low temperature cure, Low and stable release
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SF363
100 350 Paper 5-15 90-95
Low 
Migration
Three components,
Fast cure, Low platinum and Cost effective
1000Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
SF370
100 300 Flim 3-12 90-95
Low 
Migration
Three components,
Premium release force
1000Kg/IBC Drum;
180Kg/ Iron Drum.

Remark
  . Solventless type silicones are the best choice for environmental protection.


Emulsion Silicone Release Coating

 Items Product 
Grades
Silicone Active 
Ingredient (%)
Viscosity
(25℃,mPa.s)
Substrate Release Force
(g/25mm)
Subsequent 
Adhesion
Migration 
Properties
Key Features Packaging
Thermal Cure,
Emulsion
Siemtcoat® 
EM5502
40 200 Paper 5-20 85-90
Low
Migration
Two components
Suitable for paper coating, used in food & sanitary materials, etc.
950Kg/IBC Drum;
180Kg/ Iron Drum.
Siemtcoat® 
EM5503
40 200 PET Film 5-20 85-90
Low
Migration
Two components
Suitable for in-line and off-line coating of PET film, with good adhesion.
950Kg/IBC Drum;
180Kg/ Iron Drum.


Remark
  . Emulsion type silicones only have two components: Base Polymer+Catalsyt, no need of Cross-linker.
  . Emulsion type silicones should be agitated thoroughly before use.
  . Emulsion type silicones may freeze at low temperatures, so users in colder regions should take special care with regard to storage.
  . Emulsion type silicones should be storage in a closed container at +10°C to +30°C temperature.