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Fluoro-Silanes

Easy-to-Clean Fluoroalkyl Silane (C8, Methoxy) | Manta F1331

Manta F1331 is 1H,1H,2H,2H-perfluorooctyltrimethoxysilane (CAS 85857-16-5), a reactive fluoroalkyl silane that bonds to glass, ceramics and other inorganic substrates to form a thin hydrophobic and oleophobic layer, used in easy-to-clean, anti-fingerprint and anti-graffiti coatings and as an adhesion promoter for fluoropolymers.

Grade
F1331
Chemical Name
1H,1H,2H,2H-Perfluorooctyltrimethoxysilane
CAS No.
85857-16-5
EINECS
288-657-1
Synonyms
Trimethoxy(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silane
Form
Colorless transparent liquid

Overview

Manta F1331 is a reactive bifunctional silane with hydrolyzable methoxysilyl groups and a low-surface-energy fluoroalkyl chain. It can be diluted to the required application concentration in a wide range of organic solvents, including ethanol, n-hexane, xylene, acetone and ethyl acetate.

F1331 bonds chemically to inorganic substrates and forms a thin protective layer with hydrophobic and oleophobic properties. Manta F1332 carries the same fluoroalkyl chain with ethoxy groups in place of methoxy groups, and releases ethanol rather than methanol on hydrolysis.

Fluoroalkyl silanes can fall under PFAS rules in a growing number of markets. In the EU, substances of this structure can fall within REACH Annex XVII entry 79 (PFHxA and PFHxA-related substances), which restricts uses including consumer mixtures, textiles and cosmetics. Check the rules for your market and end use before formulating; regulatory status is confirmed by grade at inquiry.

Key Features

  • Hydrolyzable methoxysilyl groups for bonding to hydroxyl-functional substrates
  • Fluoroalkyl chain with low surface energy
  • Hydrophobic and oleophobic surface modification
  • Dilutable in common organic solvents

Specifications

Typical properties of Manta F1331
PropertyTypical Value
Molecular Weight468.28
AppearanceColorless transparent liquid
Purity (by GC, %)97.0 min
Density (20°C, g/cm3)1.453±0.005
Refractive Index (nD 25°C)1.335±0.005
Boiling Point88°C/13 mmHg
Flash Point>65°C (closed cup)

Typical values from the current Technical Data Sheet.

Applications

  • Glass and ceramics: easy-to-clean and anti-smudge coatings, including automotive windshield treatments, shower cabin glass and sanitary ceramics
  • Displays and optics: active ingredient for anti-fingerprint and easy-to-clean coatings on touch screens, optical lenses and electronic displays
  • Fluoropolymer bonding: coupling agent to improve adhesion between metals or glass and fluoropolymers such as PTFE, fluorosilicones and fluoroelastomers
  • Mineral substrates: anti-graffiti treatment for concrete and natural stone, forming a breathable barrier against water, oil and spray paint

Related applications: Concrete, Masonry & Stone Protection · Paints & Coatings

Packaging & Storage

Supplied in 500 g, 1000 g, 25 kg pail, 200 kg drum.

Safety and Storage

Keep in a cool and dry place and avoid storage in direct sunlight. Shelf life is min. 9 months. It is shipped as non-hazardous substance.

Documents

Frequently Asked Questions

How does Manta F1331 differ from Manta F1332?

Both carry the same fluoroalkyl chain. F1331 has methoxy groups and releases methanol on hydrolysis, while F1332 has ethoxy groups and releases ethanol. The choice depends on the hydrolysis by-product your process can accept and on the solvent system.

Which solvents can Manta F1331 be diluted in?

F1331 is miscible with a wide range of organic solvents, including ethanol, n-hexane, xylene, acetone and ethyl acetate, and can be diluted to the concentration your application requires.

Is Manta F1331 subject to PFAS regulations?

F1331 is a fluoroalkyl silane, so PFAS rules can apply. In the EU, substances of this structure can fall within REACH Annex XVII entry 79, which restricts PFHxA and PFHxA-related substances in uses including consumer mixtures, textiles and cosmetics. Check your market and end use; contact us to confirm the regulatory status of this grade.

Looking for a different purity, functional group, or a structure not listed here? Contact our technical team.

Talk to our technical team

Tell us your application, target properties and estimated quantity. We will suggest grades and arrange documents or samples.