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Zonkee Electronic Grade RTV Silicone Sealant, 3.5oz / 100ml White Heat Resistant Waterproof Insulating Sealant, 704 Adhesive for Circuit Board, Appliance & Automotive Repair

Zonkee Electronic Grade RTV Silicone Sealant, 3.5oz / 100ml White Heat Resistant Waterproof Insulating Sealant, 704 Adhesive for Circuit Board, Appliance & Automotive Repair

HK$69.00
HK$100.00 HK$69.00
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容量
  • Electronic Grade Neutral Curing Formula
    Our 704 RTV silicone sealant uses an alcohol-based neutral curing system that releases no corrosive acetic acid during curing. It will not damage copper, aluminum, circuit boards or delicate electronic components, making it ideal for precision electrical sealing and component fixation without corroding solder joints.
  • Stable Performance Across Extreme Temperatures
    After full curing, the sealant maintains stable elasticity and sealing performance from -76°F to 482°F (-60°C to 250°C). It works reliably in high-temperature environments like electric kettles and small ovens, as well as low-temperature outdoor equipment, without cracking, melting or losing adhesion.
  • Superior Electrical Insulation & Waterproof Barrier
    With a dielectric strength of ≥20kV/mm, this sealant effectively isolates current and prevents short circuits caused by moisture and dust. It forms a permanent waterproof, moisture-proof and dust-proof layer after curing, suitable for sealing wiring terminals, appliance interfaces and automotive wire harnesses.
  • Versatile for Industrial & DIY Repair Scenarios
    Compatible with glass, ceramic, metal and most hard plastics. Perfect for circuit board component fixing, home appliance waterproof repair, automotive lamp sealing, 3D printing model gap filling, mechanical gasket replacement and other daily maintenance projects.
  • Precision Nozzle for Clean, Effortless Application
    The fine pointed nozzle enables accurate dispensing even for narrow gaps, reducing waste and keeping work surfaces clean. The 100ml sealed aluminum tube is easy to store with a long shelf life, suitable for both professional technicians and home DIY enthusiasts.

Product Description

This 704 electronic grade RTV silicone sealant is a one-component, room-temperature-curing adhesive specially designed for electrical and electronic maintenance. It cures by reacting with moisture in the air, forming a flexible, highly insulating silicone rubber layer with excellent weather resistance and long-term sealing performance.

Core Specifications

  • Color: White
  • Net Content: 3.5oz / 100ml
  • Curing Type: Neutral alcohol-based RTV
  • Tack Free Time: Approx. 10 minutes
  • Full Curing Time: 24–72 hours (longer for thicker layers)
  • Operating Temperature: -76°F to 482°F (-60°C to 250°C)
  • Dielectric Strength: ≥20kV/mm

How to Use

  1. Clean and fully dry the target surface to remove oil, dust and rust.
  2. Cut the nozzle tip to your desired opening size.
  3. Apply the sealant evenly to the surface. For gap filling, make sure the sealant fills the gap completely.
  4. Secure the parts with tape or a fixture. Do not move or apply stress before initial curing.
  5. Allow 24–72 hours at room temperature for full curing.

Important Notes

  • This product is designed for sealing, insulation and light fixation. It is not intended for high-strength structural bonding such as phone screen repair, leather bonding or heavy load bearing.
  • Not recommended for PP, PE, PTFE and other low-surface-energy plastics.
  • Use in a well-ventilated area. Keep out of reach of children and pets.
  • Store in a cool, dry place away from direct sunlight.

Package Contents

1 x 3.5oz / 100ml 704 RTV Silicone Sealant

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Global Wholesale & Corporate Partnerships (B2B FAQ)

Do you accept international wholesale orders, and what are your accepted payment methods?

Yes, we warmly welcome wholesalers, distributors, and corporate buyers from all over the world. To ensure a seamless transaction experience for international clients, we support a variety of mainstream payment methods, including Telegraphic Transfer (T/T), Letter of Credit (L/C) for large orders, PayPal, and secure Escrow services. All official commercial invoices can be issued in USD, EUR, GBP, or HKD to fully accommodate your corporate accounting and financial workflows.

What is the Minimum Order Quantity (MOQ) for bulk orders, and do you support custom OEM/ODM services?

We offer flexible and scalable MOQ options tailored to businesses of different scales:

  1. Ready-to-Ship Wholesale (Standard Products): The MOQ for our standard models is just 200 units, which can be dispatched rapidly from our factory warehouses in Mainland China or our overseas regional fulfillment centers.
  2. Custom Branding (OEM/ODM): If you require custom logo printing on the product body, customized housing colors, or bespoke retail packaging, the MOQ starts from 1,000 units.
    Please feel free to contact our global sales team to request our latest tiered wholesale pricing sheet.

How do you handle international shipping, and which Incoterms do you support?


Backed by a robust global supply chain and logistics network, we flexibly support various international commercial terms, including FOB (Free on Board), CIF (Cost, Insurance, and Freight), and DDP (Delivered Duty Paid). Our DDP service is particularly favored by cross-border e-commerce sellers and overseas buyers, as it provides a hassle-free, one-stop "customs-cleared and duty-prepaid door-to-door" delivery, eliminating any complex import procedures on your end. We partner with top-tier express couriers (DHL, FedEx, UPS) for fast air freight, and reliable ocean/rail freight forwarders for cost-effective container-load shipments.

Do your products comply with global electronic and safety certification standards?

Safety and regulatory compliance are our absolute bottom lines. All our products are developed and manufactured under strict international quality management systems and have obtained major global certifications, including CE (Europe), FCC (United States), and RoHS (Environmental Compliance). Furthermore, the built-in rechargeable lithium batteries fully comply with UN38.3 and MSDS safety standards for air and sea transport, ensuring seamless customs clearance and hassle-free global shipping to any country or region.