Chemical structure of (2-Aminoethyl)-3-aminopropyltrimethoxysilane (Technical Grade) N-beta-(Aminoethyl)-gamma-aminopropyltrimethoxysilane mixture (Manta A112T)

Diaminosilane 85% Solution | Manta A112T

Manta A112T is a technical-grade diamino-functional silane based on N-(2-aminoethyl)-3-aminopropyltrimethoxysilane (CAS 1760-24-3), with 85% min. diaminosilane active content. It is used as an adhesion promoter and sizing agent in foundry resins, glass fiber composites, sealants and 2K coatings, and is formulated for faster dispersion into high-viscosity resins.

Grade: A112T
Chemical Name: (2-Aminoethyl)-3-aminopropyltrimethoxysilane (Technical Grade) N-beta-(Aminoethyl)-gamma-aminopropyltrimethoxysilane mixture
CAS No.: 1760-24-3 (Main Component)
Form: Colorless to Light Yellow Transparent Liquid

Overview

Manta A112T is a technical-grade diamino-functional silane based on N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, with two reactive amino groups and three hydrolyzable methoxysilyl groups. It acts as a molecular bridge, bonding organic resins such as epoxies, urethanes and phenolics to inorganic substrates such as glass, metals and minerals.

The technical-grade concentration lowers the product's viscosity, which gives easier handling, more accurate dosing and faster, more uniform integration into high-viscosity resins, polymer matrices and surface-treatment baths. This makes A112T suited to large-scale foundry and coating operations.

Compared with the higher-purity Manta A112, A112T is the technical-grade option for high-speed mixing and has a shorter usable life. Its primary and secondary amines give stronger chemical bonding to organic polymers than mono-amino silanes.

Key Features

Lowered viscosity for easier handling, more accurate dosing and faster integration into high-viscosity resins
Primary and secondary amines bond more strongly to organic polymers than mono-amino silanes
Optimized for large-scale industrial use in foundry and coating sectors
Improves the resistance of cured systems to water, humidity and chemical exposure

Cross-Reference

Manta A112T can be considered as an alternative to Evonik Dynasylan DAMO-T.

Trademarks are the property of their respective owners; no affiliation is implied.

Specifications

Typical properties of Manta A112T
Property	Typical Value
Appearance	Colorless to Light Yellow Transparent Liquid
Active Content (Diaminosilane)	85% min.
Ash Content (SiO2)	27-29%
Amine Value	13-15
Density (25°C, g/cm3)	Approx. 1.030
Refractive Index (n25/D)	1.4300-1.4800

Typical values from the current Technical Data Sheet.

Applications

Foundry resins: additive to phenolic, furan and urethane cold-box and hot-box systems, raising sand core mechanical strength and humidity resistance and improving casting surface finish
Glass fiber and mineral-filled composites: sizing agent or finish constituent for glass fibers, glass fabrics and mineral wool, improving wet and dry mechanical properties and helping to limit fiber-matrix de-bonding
Sealants and adhesives: internal adhesion promoter and primer for RTV silicones, two-part polyurethanes and MS/SPUR hybrid sealants on substrates such as aluminum, stainless steel and engineering plastics, where it can reduce the need for additional primers
Paints and coatings: additive or primer in 2K epoxy and polyurethane coatings, improving inter-coat adhesion and resistance to water, salt spray and chemical corrosion
Mineral-filled polymers: pretreatment of silica, wollastonite, mica, talc and pigments, improving filler dispersibility in the polymer melt
Metal surface pre-treatment: metal primers and conversion coatings on steel, zinc and aluminum, anchoring subsequent paint layers
Resin modification: chemical modification of phenolic, melamine and epoxy resins for thermal stability and moisture resistance in laminates and friction materials

Packaging & Storage

Supplied in 25 kg pail, 200 kg drum and 1000 kg IBC.

Safety and Storage

Keep away from heat and open flame. When stored at or below 25 °C in the original unopened containers, this product has a usable life of 12 months from the date of production.

Documents

Technical Data Sheet · PDF Download TDS
SDS and COA · on request Request Documents

Frequently Asked Questions

What are the key specifications of Manta A112T?

Active diaminosilane content: 85% min. Ash content as SiO2: 27-29%. Amine value: 13-15. Density: Approx. 1.030 g/cm³. Refractive index: 1.4300-1.4800.

What is the practical advantage of Manta A112T over Manta A112?

The technical-grade concentration lowers viscosity, which allows easier handling, more accurate dosing and faster, more uniform integration into high-viscosity resins and surface-treatment baths. This is useful in large-scale foundry and coating operations. A112 is the higher-purity grade.

How is Manta A112T used in foundry resins?

It is added to foundry resins such as phenolic, furan and urethane systems, including cold-box and hot-box processes. Its viscosity allows uniform distribution during high-speed mixing, which raises sand core mechanical strength and humidity resistance and improves the surface finish of castings.

How long can Manta A112T be stored?

Keep away from heat and open flame. When stored at or below 25 °C in the original unopened containers, this product has a usable life of 12 months from the date of production. This is shorter than the usable life of Manta A112, so plan inventory accordingly.

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

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