
Maisam Dubai supplies Momentive TSE 399-C, a one-component, fast-curing, non-corrosive silicone adhesive sealant. It cures on exposure to atmospheric moisture to form a soft dielectric silicone rubber with excellent adhesion, electrical insulation, and resistance to environmental stresses. Packaged in a 82.8 ml tube, it is ideal for electronics, automotive, aerospace, and industrial sealing applications.
Meets MIL-A-46146A corrosion-resistant requirements.
Fast Cure at Room Temperature – Tack-free in ~10 minutes.
Non-Corrosive, Neutral Cure – Safe for metals, including copper.
Outstanding Electrical Properties – High dielectric strength and volume resistivity.
Resistant to Environmental Stress – Heat, cold, moisture, UV, ozone, and chemicals.
One-Part System – No mixing or de-airing required, easy to use.
Momentive TSE 399-C is a clear, alkoxy-cure RTV silicone adhesive sealant engineered for electronics, industrial, and high-reliability applications. Unlike acetic-cure silicones, it is non-corrosive to metallic substrates, making it safe for use on copper, aluminum, and sensitive electronics.
When applied, TSE 399-C reacts with atmospheric moisture and cures into a soft, elastic silicone rubber. Its unique chemistry ensures fast curing (tack-free in ~10 minutes), and once fully cured, it delivers:
Electrical insulation – dielectric strength of 20 kV/mm and resistivity of 2 × 10¹⁵ ohm·cm.
Mechanical protection – absorbs mechanical and thermal shock.
Environmental resistance – withstands heat, cold, moisture, UV, ozone, and chemical exposure.
With its flowable consistency, TSE 399-C is excellent for coating complex assemblies, sealing delicate components, and protecting against moisture ingress.
Moisture-resistant sealing for electronics assemblies.
Adhesion and protection of plastics, metals, and glass.
Protective coatings for circuit boards and high-voltage components.
Sealing and gasketing in aerospace and automotive assemblies.
Shock and vibration protection for sensitive components.
Electronics & Power Systems
Automotive & Aerospace Components
Telecommunications Equipment
Industrial Electrical Assemblies
High-Voltage and Precision Instruments
Momentive TSE 399-C (Flowable RTV Silicone)
Color: Clear
Cure System: Alkoxy, one-part moisture cure
Consistency: Flowable
Viscosity: ~2,500 cps @ 25 °C
Tack-Free Time: ~10 minutes
Specific Gravity: 1.04
Hardness: Shore A 30
Tensile Strength: 13 kgf/cm² (185 psi)
Elongation: 140%
Dielectric Strength: 20 kV/mm (510 V/mil)
Dielectric Constant (60 Hz): 2.9
Volume Resistivity: 2 × 10¹⁵ ohm·cm
Service Temperature Range: -55 °C to +200 °C (-67 °F to +392 °F)
Flash Point: 198 °C
Package Size: 82.8 ml tube
Shelf Life: 12 months (unopened, stored 5–30 °C)
Supplier of genuine Momentive high-performance silicones.
Neutral cure – safe for sensitive metals and electronic components.
Products tested to U.S. military standards (MIL-A-46146A).
Competitive pricing for bulk and industrial orders.
Fast delivery across UAE, Saudi Arabia, Oman, Qatar, Bahrain, and Kuwait.
Technical guidance and after-sales support.
Q1. What is Momentive TSE 399-C used for?
It is used for sealing, coating, and protecting electronic and industrial assemblies with a non-corrosive silicone rubber.
Q2. Is it safe for electronics?
Yes, it is non-corrosive and suitable for copper, aluminum, and sensitive components.
Q3. How fast does it cure?
It is tack-free in ~10 minutes and develops full adhesion within 72 hours.
Q4. What is the operating temperature range?
It performs from -55 °C to +200 °C (-67 °F to +392 °F).
Q5. Does it meet military standards?
Yes, it meets the corrosion resistance requirements of MIL-A-46146A.
Q6. Do you supply across GCC?
Yes, Maisam Dubai supplies TSE 399-C across UAE, Saudi Arabia, Oman, Qatar, Bahrain, and Kuwait.
Looking for Momentive TSE 399-C Clear Silicone Adhesive Sealant in the GCC?
📞 Phone: +971 52 167 2252
📩 Email: sales@maisamdubai.com
🌍 Serving: UAE, Saudi Arabia, Oman, Qatar, Bahrain, Kuwait, and Dubai
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We offer special pricing for bulk orders. If you're looking to purchase this product in large quantities, please contact us at +97142218202 or sales@maisamdubai.com for a personalized quote.
You can find product manuals and technical specifications or download on the product page under the "Specifications" tab. If you need further assistance, please contact our support team at +97142218202 or sales@maisamdubai.com, and our experts will be happy to help.
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