Adhesion Promoters
3-Aminopropyltriethoxysilane (APTES) | Manta A110
Manta A110 is 3-aminopropyltriethoxysilane (APTES, CAS 919-30-2), a primary amino silane used as an adhesion promoter and coupling agent in adhesives and sealants, glass fiber sizing, HFFR cable filler treatment, foundry resins and asphalt anti-stripping additives. Its three ethoxy groups release ethanol rather than methanol on hydrolysis.
- Grade
- A110
- Chemical Name
- 3-Aminopropyltriethoxysilane
- CAS No.
- 919-30-2
- EINECS
- 213-048-4
- Formula
- C9H23NO3Si
- Form
- Colorless transparent liquid
Overview
Manta A110 is an amino-functional silane with three hydrolyzable ethoxy groups. The reactive primary amine group (-NH2) forms covalent bonds with organic polymers, while the silanol groups formed on hydrolysis bond to inorganic substrates, which makes A110 a general-purpose adhesion promoter and surface modifier.
It is used across composites, adhesives and coatings: as a finishing and sizing constituent for glass fiber, for pretreating ATH and MDH fillers in halogen-free flame retardant cables and thermoplastics, in foundry and abrasive resin binders, and as an asphalt anti-stripping additive.
On hydrolysis A110 releases ethanol rather than methanol, the by-product of the trimethoxy analog Manta A111. The two grades share the same primary amine functionality and differ in the alkoxy group.
Key Features
- Primary amine group forms covalent bonds with organic polymers
- Silanol groups bond to inorganic substrates
- Releases ethanol rather than methanol on hydrolysis
- Adhesion promoter and surface modifier for a broad range of industrial uses
- Improves mechanical strength and moisture resistance of glass fiber composites
- Pretreatment of ATH and MDH fillers for HFFR compounds
Cross-Reference
Manta A110 can be considered as an alternative to Momentive Silquest A-1100, Evonik Dynasylan AMEO and Shin-Etsu KBE-903.
Trademarks are the property of their respective owners; no affiliation is implied.
Specifications
| Property | Typical Value |
|---|---|
| Appearance | Colorless transparent liquid |
| Density (ρ20°C, g/cm³) | 0.9400–0.9500 |
| Refractive Index ( n 25°C ) | 1.4180–1.4220 |
| Purity (by GC,%) | 98min; 99 min |
Typical values from the current Technical Data Sheet.
Applications
- Adhesives and sealants: primer and internal adhesion promoter in hybrid sealants, silicones and adhesives
- Composites and fiberglass: finishing and sizing constituent for glass fiber and glass fabric, improving mechanical strength and moisture resistance
- Mineral-filled polymers (HFFR): pretreatment of mineral fillers such as ATH and MDH in halogen-free flame retardant cables and thermoplastic polymers
- Foundry and insulation: additive to phenolic, furan and melamine resin binders in foundry resins and mineral fiber insulating materials
- Paints and coatings: primer or additive to boost adhesion on glass and metal substrates
- Asphalt anti-stripping: additive that binds asphalt to damp mineral aggregates, helping to limit moisture-induced damage
- Resin-bonded abrasives: enhances the interfacial bonding strength of phenolic resins in grinding wheels and abrasive cutting discs
Related applications: Adhesives & Sealants · Paints & Coatings · Composites & Fiberglass · Plastics & Masterbatches · Wire & Cable
Packaging & Storage
Supplied in 20 kg pail, 190 kg drum, 200 kg drum.
Safety and Storage
Keep away from heat and open flame. When stored at or below 25°C in the original unopened containers, the shelf life is 24 months.
Documents
- Technical Data Sheet · PDF Download TDS
- SDS and COA · on request Request Documents
Frequently Asked Questions
When should I pick Manta A110 instead of the methoxy analog Manta A111?
Choose A110 when the hydrolysis by-product matters. Its three ethoxy groups release ethanol, while the trimethoxy A111 releases methanol. Both carry a primary amine group for bonding to organic polymers.
Which flame-retardant fillers can be pretreated with Manta A110?
It is used to pretreat mineral fillers such as ATH and MDH in halogen-free flame retardant (HFFR) cables and thermoplastic polymers.
What does Manta A110 do in asphalt applications?
It acts as an anti-stripping additive that binds asphalt to damp mineral aggregates, helping to limit moisture-induced damage in heavy infrastructure such as highways.
What purity grades and shelf life does Manta A110 have?
Purity by GC is 98% min or 99% min, depending on the grade. Keep away from heat and open flame. When stored at or below 25°C in the original unopened containers, the shelf life is 24 months. It is supplied in 20 kg pail, 190 kg drum, 200 kg drum.
Related Products
A110 is one step in the sealant and adhesive formulation chain. One inquiry can cover the other raw materials in your formulation, with samples, technical documents, quotation and shipment handled together.
- End Cappers
- MS, STPE & SPUR Polymers
- Adhesion Promoters
- Water Scavengers
- Crosslinkers
- Catalysts
Looking for a different purity, functional group, or a structure not listed here? Contact our technical team.
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