Silane Oligomer Diaminofunctional silane Crosile®5246

Diaminofunctional silane Crosile®5246 is used as adhesion promoter, such as Modified Silicone sealant, Photovoltaic adhesive. Demonstrates very good wetting on substrates and forms weather and moisture-resistant bonds to difficult-to-bond substrates.

Item NO.:
Crosile®5246
Chemical Name:
Diaminofunctional silane
CAS No.:
1067-25-0
Properties:
Crosile®5246 Diaminofunctional Silane Oligomer by Falcone Specialities is a diaminofunctional silane oligomer. It acts as an adhesion promoter. It improves the adhesion of amino-reactive resins to inorganic surfaces and inorganic fillers. It offers low viscosity. It produces significantly less by-product (VOC) and low-odor.

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Silane Oligomer Diaminofunctional Silane Crosile®5246

Crosile®5246; bisamino-functional silane; coatings, adhesives and sealants; inorganic surfaces, plastic surfaces and inorganic fillers

Chemical Name: Diaminofunctional silane

Cas No.: 1067-25-0

Chemical Properties

Crosile® 5246 Silane is characterized by a random distribution of linear and cyclic Olig siloxanes, which meet the OECD polymer definition. Its low volatility and viscosity make compounding easy.

Crosile® 5246 Silane produces a significant reduction in by-products (VOCs) and a corresponding reduction in odor levels during application.

Specifications

Ash (SiO2)	43±2%	Refraction (25°C）	1.4400±0.005
Physical form	clear to light opaque	Chloridion	≤ 20ppm
Flash point	>50°C	Tone	70
Density (20°C) g/cm3	1.06±0.02	Amine Value	6.8±0.5%
Viscosity (25℃ mPa.s)	38-80

Product Application

• As an additive or primer in the coatings, adhesives, and sealants industry;

• As an additive, 5246 can eliminate some special primer steps in multiple bonding applications.

• Crosile-5246 The usual recommended addition is 0.5~1.5 wt.% relative to the overall formulation.

• In particular, in photovoltaic/solar sealant, the use of Crosile-5246 can make it pass the double 85,95 test;

• It can be used for the treatment of inorganic fillers. When mixed with resin systems, the use of Crosile-5246 can yield functional inorganic fillers with unique properties.

• MS adhesive systems, RTV silicone rubber, and hybrid silane crosslinking systems, two-component polyurethane, and organic silicon-modified polyurethane, two-component epoxy resin, and other systems can also improve the adhesion of Crosile-5246.

Application Features

+ For organic substrates (PVC)

+ Improve tensile strength and modulus

+ No yellowing in high elasticity formula

+ Give the colloid better mechanical strength

+ For inorganic substrates (concrete, aluminium product)

Functional Characteristics

+ Migration

+ Hydrophobicity

+ Less VOC emission

+ Less yellowing (white/translucent products)

+ Compatibility with polar/non-polar polymers

+ High flash point, low volatility (process/operation safety)

+ Combine amino/alkyl functional groups in the same molecule

+ Excellent bonding promotion for organic/inorganic substrates

Application comparison between Crosile-5246 and an Overseas brand competitor

Crosile-5246 compared with domestic products in appearance, solid content, amine value, The content of chloride ion and product stability are significantly better than those sold in China, but they are not much different from those of overseas competitors. The application of downstream scenarios plays a vital role;

Indicator	Overseas Brand	Ecopower brand Crosile-5246	Other Peer Products
Ash Content (SiO2)	43.4%	43-45%	41-42%
Density (20°C)	1.061	1.064	1.058
Viscoity (25°C, CS)	30-40	35-50	38-80
Refractive Index (25°C)	1.442	1.443	1.443
Chloride	6 ppm	5 ppm	20-100 ppm
Amine Value	6.81%	6.89%	6.20-6.52%
Apperance	Light Yellow Transparent	Light Yellow to Colorless Transparent	Yellow to Light Transparent
Flash Point	55°C	60°C	40°C

The table below is a comparison of some applications of Crosile-5246 and an overseas competitor, they are the bonding test, mechanical test, and aging test;

Experiment Number	Glass	Anodized Aluminum	SUS304	SUS202	Powder Spraying Red	Powder Spraying Ash	Yellow Electro Phoresis	White Electrophoresis
Overseas Competitor	CF	CF	CF	CF	5%AF	70%AF	60%AF	CF
Crosile-5246	CF	CF	CF	CF	5%AF	25%AF	CF	CF

	Item	Spec	Unit	SLT 6418TRS	SLT 6418TRS
	Item	Spec	Unit	Overseas Competitor	Crosile-5246
Before Curing	Apperance	≤2.5	-	2.5	2.5
	Surface Drying Time	1-10	min	3	2.5
	Extrusion Rate	90-300	g/min	200	140
After Curing (Curing 3d)	Density	found	g/m3	1.012	1.011
	Shore A	≥23	Shore A	29	29
	Tensile Strength	≥1.3	Mpa	1.62	1.99
	100% Modulus	found	Mpa	0.57	0.57
	Elongation at Break	≥300	%	369	448
Aging (95°C/2d)	Extrusion Rate	found	g/min	85	62
	Shore A	found	SH.A	26	25
	Tensile Strength	found	Mpa	1.56	1.2
	100% Modulus	found	Mpa	0.54	0.43
	Elongation at Break	found	%	464	446
Unaged	Consistency	found	cm	8.5	8.7
	Initial Strength	6mm adhesive tape		40min	30min
	Deep Curing	6mm adhesive tape		1d	1d
Aging (95°C/2d)	Consistency	found	cm	7.3	7.3
	Initial Strength	6mm adhesive tape		5h	4h 40min
	Deep Curing	6mm adhesive tape		2d

Silane Oligomer Diaminofunctional Silane Crosile®5246

Package: 25kg, 200kg of plastic drums, 1000kg IBC's
Storage: Keep in a low temperature, dry and ventilated place, avoid direct sunlight.
Shelf life: One year in a ventilating, cool and dry area.

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