DOWSIL™ 3362 Insulating Glass Sealant

Short Description:

A two component room temperature neutral curing silicone sealant specifically developed for the manufacture of high performance insulated glass units. It is suitable for insulating glass units used in residential and commerical, and structural glazing applications.

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Features &Benefits

1. When used correctly, manufactured dual sealed insulating glass units meet EN1279 and CEKAL requirements

2. Outstanding adhesion to a wide range of substrates including coated and reflective glasses, aluminum and steel spacers, and a variety of plastics

3. Structural capability as secondary sealant for insulating glass units used in structural glazing

4. CE Marked according to ETAG 002 meets sealant requirements according to EN1279 parts 4 and 6 and EN13022  Low water absorption  Excellent temperature stability: -50°C to 150°C

5. High level of mechanical properties- high modulus

6. Non-corrosive cure

7. Fast curing time

8. Outstanding resistant to ozone and ultraviolet (UV) radiation

9. Stable viscosity for A and B components, no heating required

10. Different grey shades available (please refer to our color card)

Applications

Insulating glass units for residential and commercial use.

Insulating glass units with high levels of UV exposure (free edge, greenhouse, etc.).

Insulating glass units incorporating specialty glass types.

Insulating glass units where high heat or humidity may be encountered.

Insulating glass in cold climates.

Insulating glass units used in structural glazing.

How to Use

Mixing and Dispensing Instructions: DOWSIL™ 3362 Insulating Glass Sealant should be mixed in a ratio of 10:1 base to curing agent by weight, or equivalent 8:1 by volume for optimal properties. At this mix ratio, the sealant typically exhibits a working time of 5–10 minutes and allows units to be handled within two hours. Slight variations in mixing ratio can be tolerated, but these should not exceed 11:1 to 9:1 by weight or 8.8:1 to 7.2:1 by volume to ensure minimum properties are obtained.

Mixing and Dispensing Instructions:The sealant is compatible with most DOWSIL™ neutral curing construction sealants. Please contact our technical services department for more information. To obtain the ultimate physical properties from DOWSIL™ 3362 Insulating Glass Sealant, it is recommended that the base and curing agent are thoroughly mixed using an airless mixing system found on most existing commercially available two-part silicone dispensing machines.

Catalyst Selection:Different catalysts are available for DOWSIL™ 3362 Insulating Glass Sealant:

DOWSIL™ 3362 HV Catalyst is a medium viscosity paste, fast cure, which is suitable for meter mix equipment using a pressure pot or follower plate system for the catalyst.

DOWSIL™ 3362 HV/GER Insulating Glass Catalyst is a viscous paste fast cure and is suitable for meter mix equipment that uses a follower plate system for the catalyst.

Equipment Cleaning:When not being used it is recommended that the dispensing equipment be purged either with the uncatalyzed base, or flushed with a suitable solvent such as DOWSIL™ 3522 Concentrated Cleaning Solvent. If cured sealant has built up inside the equipment, it is recommended to flush the equipment for the appropriate time with DOWSIL™ 3522 Concentrated Cleaning Solvent. This solvent dissolves cured silicone sealant and provides optimum cleaning performance.

Typical Properties

Test1	Property	Unit	Result
DOWSIL™ 3362 Insulating Glass Sealant Base: as supplied
	Color and consistency		Viscous white paste
	Specific gravity		1.32
	Viscosity (60s-1)	Pa.s	52.5
Curing agent: as supplied
	Color and consistency		Clear / black / grey2 paste
	Specific gravity
	HV		1.05
	HV/GER		1.05
	Viscosity (60s-1)
	HV	Pa.s	3.5
	HV/GER	Pa.s	7.5
As mixed
	Color and consistency		White / black / grey² non-slump paste
	Working time (25°C, 50% R.H.)	minutes	5–10
	Snap time (25°C, 50% R.H.)	minutes	35–45
	Specific gravity		1.30
	Corrosiveness		Non-corrosive
ISO 8339	Tensile strength	MPa	0.89
ASTM D0412	Tear strength	kN/m	6.0
ISO 8339	Elongation at break	%	90
EN 1279-6	Durometer hardness, Shore A		41
ETAG 002	Design stress in tension	MPa	0.14
	Design stress in dynamic shear	MPa	0.11
	Elastic modulus in tension or compression	MPa	2.4
EN 1279-4 annex C	Water vapor permeability (2.0 mm film)	g/m2/24h	15.4
DIN 52612	Thermal conductivity	W/(m.K)	0.27

Package Information

DOWSIL™ 3362 Insulating Glass Sealant Base is available in 250 kg drums and 20 liter pails. DOWSIL™ 3362 Insulating Glass Sealant Catalyst is available in 25 kg pails. Beside black and clear, the curing agent is offered in a variety of grey shades. Custom colors may be available on request.