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Silquest™ Y-9627

Chemical Family
Silanes
Molecular Weight
341.5 - 341.5 g/mol

Silquest™ Y-9627 is secondary aminofunctional bis-silanes. This category of silanes is generally useful to consider for a broad range of applications to promote adhesion in coatings, adhesives and sealants between organic polymers and glass, metal, wood or cast plastic substrates. Typically, they can function as coupling agents to particulate mineral fillers in composites, as in foundry molds and cores, to improve mechanical properties such as tensile and flexural strengths. These property improvements have been maintained in the presence of aggressive environments, such as high temperature and high humidity conditions.

Properties

Physical Form
Liquid

Identification

Product families

Applications

Automotive & Transportation — Bonding & Assembly
  • Transportation Assembly
Adhesives & Sealants — Industrial & Assembly Adhesives
  • Transportation Assembly

Product Families

CASE Ingredients — Additives
  • Functional Additives
  • Surface Modifiers
CASE Ingredients — Monomers & Intermediates
  • Chain Extenders & Crosslinkers

Other characteristics

Brand
Silquest
Features

Good Mechanical Properties, Improves Adhesion, Long Shelf Life

Functions

Adhesion Promoter, Coupling Agent, Crosslinking Agent

Compatible Polymers & Resins

Epoxies (EP), Phenolic Resins, Polyurethanes (PU)

Odor
Ester
Markets
  • Adhesives & Sealants
  • Automotive & Transportation
Appearance
Clear liquid, Clear Liquid
Technology
CASE Ingredients
Recommeded Usage

Amino bis-silanes such as Silquest A-1170, Silquest Y-9627 and Silquest Y-11699 silanes have been shown to be effective in reacting with epoxy, urethane, melamine, polyimide, phenolic and furan thermosetting resins as well as many thermoplastics, such as polyamides and polyesters.; Durable water-resistant bonds are generally achieved when the silyl portion of these aminosilanes are condensed with an inorganic surface and are covalently bonded with the resin matrix of the composite, paint, adhesive or sealant.; The bis-alkoxysilane structure of the Silquest A-1170, Silquest Y-9627 and Silquest Y-11699 silanes result in the addition of two silyl groups to a resin. This typically yields more durable wet adhesion and more efficient bonding per mole of added silane.; The ethoxy ester groups, as on Silquest Y-11699 silane, generally provide slower reaction with moisture, giving longer shelf stability when exposed to incidental or atmospheric moisture on storage; The Silquest A-1170 silane and Silquest Y-9627 silane, as the methoxy ester versions, generally offer a quick cure and or rapid adhesion build.; The higher purity grade of Silquest A-1170 silane may be considered for applications which demand low color, and greater control of reaction stoichiometry.

HIGHLIGHTS

Bis-silyl functionality - generally affords greater bonding or adhesion promotion to inorganic substrates.; Secondary amino functionality - can typically improve shelf stability in various resin systems.; Methoxy silane ester versions Silquest A-1170 silane and Silquest Y-9627 silane generally offer fast reaction with moisture, which translates to rapid cure or adhesion build.; Ethoxy silane ester version Silquest Y-11699 silane generally provides a controlled cure with a by-product of the coupling or crosslinking mechanisms that have a lower impact on the environment.

Compatible Polymers and Resins
  • Epoxies (EP)
  • Phenolic Resins
  • Polyurethanes (PU)

Technical data

Table 1 of 1

3 rows
CharacteristicValueUnitMethod
Boiling Point (at 4mm Hg)min. 100 (min. 212)°C—
Percent Puritymin. 95 / 90%—
Flash Point82 (179.6)°C (°F)Pensky-Marten Closed Cup ASTM D 93

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