DOWSIL 789 Silicone Weather Proofing Sealant

DOWSIL 789 Silicone Weather Proofing Sealant is a premium, one-component sealant designed for hobbyists working on RC models, diecast displays, and scale replicas.
It delivers superior adhesion and flexibility to protect against moisture, dust, and outdoor elements, ensuring long-lasting performance for your hobby projects.

This high-performance silicone sealant features a durable, neutral-cure formula that bonds effectively to plastics, metals, and composites commonly used in RC cars, helicopters, planes, and model trains. Its weatherproof properties make it ideal for sealing joints on scale replicas, protecting chassis from water ingress during off-road racing or layout operations. The smooth application and fast curing time allow for quick assembly without compromising on strength or detail preservation.

Available in a convenient 300ml cartridge, DOWSIL 789 offers excellent UV resistance and temperature flexibility from -40°C to 150°C, perfect for both indoor display pieces and high-performance hobby-grade builds. Hobbyists appreciate its non-corrosive nature, which safeguards sensitive electronics in RC trucks and planes. Recommended for ages 14+, it's user-friendly with standard caulking tools—no special equipment needed.

Key Features

• One-component, neutral-cure silicone for easy application

• Superior adhesion to plastics, metals, glass, and composites[havochobby]

• Weatherproof protection against rain, UV, and temperature extremes

• Flexible cure maintains seals during vibration and movement

• 300ml cartridge size for multiple hobby projects

• Fast skin-over time (15-30 minutes) with full cure in 24 hours

• Non-corrosive formula safe for RC electronics and painted surfaces

• High durability for outdoor RC cars, planes, and model layouts

What’s Inside the Box

• 1 x 300ml DOWSIL 789 Silicone Weather Proofing Sealant cartridge

• Nozzle tip for precise application

Why Buy from Havoc Hobby Private Limited
At Havoc Hobby Private Limited, we guarantee authentic, high-quality hobby supplies backed by our expertise in RC models and scale collectibles. Our sealants are sourced for reliability, ensuring your builds stay protected and performing at their best.