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Clear aqueous diamino silane oligomer in a glass bottle (Manta A146)
Adhesion Promoters

Waterborne Aminosilane Oligomer (VOC-Free) | Manta A146

Manta A146 is an aqueous diaminofunctional silane hydrolysate (oligomer) used as a VOC-free adhesion promoter in water-borne acrylics, polyurethane dispersions and epoxies, in reactive sealants and adhesives, and as a sizing agent for glass fibers and ATH or MDH fillers. Pre-hydrolyzed and water-borne, it releases no methanol or ethanol during curing.

Grade
A146
Chemical Name
Aqueous diaminofunctional silane hydrolysate
CAS No.
Mixture
Formula
Not Applicable (Aqueous Polymeric Mixture)
Form
Colorless transparent liquid to light yellowish
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Overview

Manta A146 is an aqueous diaminofunctional silane hydrolysate. Unlike traditional monomeric aminosilanes, it is pre-hydrolyzed and water-borne, so it does not release methanol or ethanol during crosslinking or curing. It acts as an adhesion promoter and surface modifier designed for integration into water-borne polymer systems, and it is also used in reactive resin systems.

A146 is miscible and stable in aqueous environments, which allows direct addition to water-based paints, coatings and adhesives. Its diamino functionality provides multiple reactive sites for crosslinking with amino-reactive resins. Its TDS lists the product as VOC-free, and it is shipped as non-hazardous material.

Manta A112 is the closest diamino grade, but it is a trimethoxy silane that releases methanol on hydrolysis. A146 is the pre-hydrolyzed, water-borne option for systems where alcohol release needs to be avoided.

Key Features

  • VOC-free; contains no volatile alcohols
  • Pre-hydrolyzed and water-borne, with no methanol or ethanol released during curing
  • Miscible and stable in water, allowing direct addition to water-based systems
  • Diamino functionality provides multiple reactive sites
  • Shipped as non-hazardous material

Cross-Reference

Manta A146 can be considered as an alternative to Evonik Dynasylan 1146.

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

Specifications

Typical properties of Manta A146
PropertyTypical Value
AppearanceColorless transparent liquid to light yellowish
Density (ρ20°C, g/cm³)1.06
Viscosity (mPa·s )approx. 35
VOC ContentVOC-Free

Typical values from the current Technical Data Sheet.

Applications

  • Water-borne systems: adhesion promoter for water-borne acrylics, polyurethane dispersions (PUDs) and water-borne epoxies in paints and coatings
  • Sealants and adhesives: improves the adhesion of RTV silicones, two-component polyurethanes, MS/SPUR polymers and two-component epoxies to inorganic substrates, glass and plastics
  • Glass fiber and mineral fillers: VOC-free sizing agent or surface treatment for glass fibers and inorganic fillers such as ATH and MDH, improving mechanical strength in composites

Related applications: Adhesives & Sealants · Paints & Coatings · Composites & Fiberglass · Plastics & Masterbatches

Packaging & Storage

Supplied in 20 kg pail, 190 kg drum and 950 kg IBC.

Safety and Storage

Storage Conditions: Keep tightly closed in a cool, well-ventilated area. Protect from freezing and direct sunlight. Store at or below 35°C in the original, unopened containers.

Handling: Although aqueous and VOC-free, handle with standard chemical safety precautions (eye and skin protection). Keep away from extreme heat and open flames.

Shelf Life: Minimum 12 months under proper storage conditions. It’s shipped as non-hazardous material.

Documents

Frequently Asked Questions

Does Manta A146 release any alcohol during curing?

No. Because it is a pre-hydrolyzed aqueous oligomer, it releases no methanol or ethanol during crosslinking or curing, and the product is specified as VOC-Free.

Can Manta A146 be added directly to water-based paints?

Yes. It is miscible and stable in aqueous environments, which allows direct addition to water-based paints, coatings and adhesives, including water-borne acrylics, polyurethane dispersions (PUDs) and water-borne epoxies.

What storage conditions does Manta A146 require?

Keep tightly closed in a cool, well-ventilated area. Protect from freezing and direct sunlight. Store at or below 35°C in the original, unopened containers. It is shipped as non-hazardous material.

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

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