DOWSIL Q3-3384-1

Harmonization Code : 8001.20 | Unwrought tin: Tin alloys

DOWSIL Q3-3384-1

Main features

  • Visual 10:1 Mix Verification
  • Fast Room-Temperature Handling
  • Non-Self-Leveling Component Sealing

Product Description

DOWSIL Q3-3384-1 Base with SILASTIC Q3-3636 Special Black Catalyst is a two-component, room-temperature-curing thixotropic silicone adhesive system for durable component sealing. The off-white base and black catalyst provide visual confirmation of mixing at the required 10:1 ratio by weight. Its non-self-leveling paste consistency supports controlled placement, while typical snap time is 8 to 11 minutes and tack-free time is 15 to 20 minutes. After seven days at room temperature, the cured adhesive has Shore A 33 hardness, 1.6 MPa tensile strength, and 250% elongation. The system uses a neutral alkoxy cure and is intended for adhesive sealing of components.

Key features

  • Visual mix verification: Contrasting off-white base and black catalyst make incomplete mixing easier to identify.
  • Fast room-temperature handling: Typical 8 to 11 minute snap time and 15 to 20 minute tack-free time support rapid handling.
  • Thixotropic sealing paste: Non-self-leveling consistency supports controlled adhesive sealing of components.

Applications / Suitable for

  • Durable adhesive sealing of components
Product Family

DOWSIL Q3-3384-1

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Off white/yellow | Black
Component System
Describes the number of components that must be supplied, mixed, or activated before application or cure.
DOWSIL™ Q3-3384-1 Base | SILASTIC™ Q3-3636 Special Black Catalyst
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.2 | 1.04
Physical Properties
Tack-Free Time
15–20 minutes
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
250 %

Additional Information

Technical properties

As-supplied / before-processing properties

Typical component and mixed-system properties before cure.

Property Value Unit Method / condition
Component appearance Off-white/yellow base; black catalyst CTM 0176
Base viscosity 84,500 mPa s CTM 0050
Base specific gravity 1.2 CTM 0097
Catalyst consistency 180 to 460 mm/10 Penetration test
Catalyst specific gravity 1.04 CTM 0097
Mix ratio 10:1 Base to catalyst by weight
Snap time 8 to 11 min As mixed
Tack-free time 15 to 20 min As mixed; CTM 0095
Technical properties

After-processing / final-state properties

Typical cured properties after 7 days at room temperature.

Property Value Unit Method / condition
Durometer hardness 33 Shore A CTM 0099
Tensile strength 1.6 MPa CTM 0137A
Elongation 250 % CTM 0137A

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