Technical datasheet
Primosil™ 645 (Dimethicone & Dimethicone/Vinyl Dimethicone Crosspolymer)
Supplied byFlychem- Last Updated on Jan 8, 2025
Dimethicone (and) Dimethicone/Vinyl Dimethicone Crosspolymer. Primosil™ 645 (Dimethicone & Dimethicone/Vinyl Dimethicone Crosspolymer) by Flychem is a specialized silicone blend. It provides a smooth, silky texture, and significantly improves the tactile experience of skincare and makeup. It offers pigment dispersion and thickening abilities.
- It forms a soft, elastic film on the skin, smoothing fine lines and imperfections, and making the skin appear more youthful.
- It prevents cosmetics from smudging or settling into pores and imparts a long-lasting, velvety feel.
- It locks in moisture, forms a protective barrier on the skin or hair without feeling heavy, and supports hydration.
- It helps condition the hair, reduces frizz and tangles, making it softer and easier to manage.
- It offers a matte finish, control shine, and oiliness and gives a non-greasy feel.
- It increases the durability of makeup, helping it to stay in place longer and resist smudging or fading throughout the day.
- Primosil™ 645 (Dimethicone & Dimethicone/Vinyl Dimethicone Crosspolymer) is used in skin-, hair care, anti-aging formulations.
- It has a shelf life of 24 months.
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Primosil™ 645 (Dimethicone & Dimethicone/Vinyl Dimethicone Crosspolymer) properties
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Arsenic Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Ash Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Assay | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Boiling Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Decomposition Temperature | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Density | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Flash Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Heavy Metal Content | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Loss on Drying | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Melting Point | 0.0 Visible After Login | Visible After Login | Visible After Login |
| pH | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Solubility Properties | Element | Condition | Method |
|---|---|---|---|
| Insoluble in | Visible After Login | ||
| Soluble in | Visible After Login |




