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Silcoat 7031

Chemical Family
Silicones

Silcoat 7031 is a silicone sealing and conforaml coating compound.

Product families

Applications

Automotive & Transportation — Automotive
  • Electrical & Electronic Systems
Electrical & Electronics — Parts & Components
  • Printed Circuit Boards (PCBs)
  • Semiconductor Manufacturing
Electrical & Electronics — Wire & Cable
  • Optical Fiber & Telecom

Product Families

Ready-to-Use Products — Paints & Coatings
  • Protective Coatings

Other characteristics

Brand
United Adhesives Silcoat
Features

Excellent Dielectric Properties, Excellent Substrate Adhesion, Fast Cure, Good Thermal Stability, Low Stress, Self-Priming, Solventless, Water Resistant

Product Type

1K (1 component) Coating, Conformal Coating, Solventless & High Solids Coating; 1K (1 component) Coating; Conformal Coating; Solventless & High Solids Coating

Application Area

Electrical Components, Electronic Components, Semiconductors, Telecommunications Applications; Electrical Components; Electronic Components; Semiconductors; Telecommunications Applications

Application Method
Injection, Spray
Safety
General hygiene regulations should be observed.
Markets
  • Automotive & Transportation
  • Electrical & Electronics
Storage

Silcoat 7031 has a shelf life of at least 3 months when stored in refrigerator (< 4°C) in the originally sealed container. Storage beyond the date specified does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Shelf LIfe
Minimum 3 months at 4°C (Viscosity double)
Technology
Ready-to-Use Products
Characteristic

Silcoat 7031 is a conformal coating compound for electronic sealing and protective applications. It is a one-component, solvent-free silicone. After it is cured at elevated temperature, it forms a flexible rubbery layer with excellent adhesion to most substrates, which provides protection for electronic devices. It is non-corrosive and selfpriming adhesion, and can be automated to dispense or spray.

Labeling Claims
Non-Corrosive
Application Methods
  • Injection
  • Spray
Typical Applications
  • Protection of electronic components / devices
  • For harsh environment applications
  • Water resistant coating
  • Automotive electronics
  • Semiconductor and Telecommunications
  • Low thermal stress coating
Processing Instruction

Important! Silcoat 7031 is a platinum catalyzed cure system. Please keep applied surface clean and avoid using this material directly on any surface that contains sulfur, amine, phosphorous, organo-metals, acid, etc. because these contaminants could inhibit the cure the material. To reach best results, the coating surface needs to be clean and free of oil, grease, lubricants, soaps, dust, mold release agents, etc. We recommend running preliminary tests to optimize conditions for the particular application.

Special Features and Benefits
  • Conformal coating capability
  • Fast cure at elevated temperature
  • Solvent free (100% solid)
  • Bond to various substrates
  • Strong media resistance
  • Flexible over -40°C to 180°C
  • Excellent dielectric property
  • Low thermal stress
Ready to Use Product Features
  • Excellent Dielectric Properties
  • Excellent Substrate Adhesion
  • Fast Cure
  • Good Thermal Stability
  • Low Stress
  • Self-Priming
  • Solventless
  • Water Resistant

Technical data

Table 1 of 2

5 rows
CharacteristicValueUnitMethod
Cure Time (105°C)60.0MinUATM
Cure Time (125°C)15.0MinUATM
Density1.0Gram /ccASTM D792
Viscosity (25°C)6000.0cpsASTM D2196
Weight Loss In Curemax. 0.3%Weight %TGA

Table 2 of 2

10 rows
CharacteristicValueUnitMethod
Dielectric Constant (100 Hz)3.2—ASTM D150
Dielectricstrengthmin. 450Volt/mil ACASTM D149
Dissipation Factor (100 Hz)max. 0.01—ASTM D150
Elongation60.0%ASTM D638
Hardness35.0Shore AASTM D2240
Peel Adhesion (Over Al Plate, 25°C)min. 3Ib / inchUATM
Tensile Strength2.5MpaASTM D638
Glass Transmission-120.0°CTGA
Useful Temperature Range-55 to 200°CTGA
Volume Resistivitymin. 10E+14Ohm-cmASTM D257

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