China DR8516 Primer-Free Elastic Adhesive Sealant from Suppliers & Factory for Automotive Lamp Housing Assembly
Product Introduction
The neutral-curing mechanism is entirely non-corrosive to copper, sensitive electronics, and delicate engineering plastics, preventing any chemical deterioration of the substrate. Additionally, the entire product line minimizes odor concerns in enclosed workshops while complying strictly with global eco-standards, including HF, RoHS, and REACH, effectively supporting green manufacturing and international export compliance.
Features
Specifications
| Model | Product Name | Appearance | Tack-free Time | Hardness (Shore A) | Elongation | Tensile Strength | Volume Resistivity | Breakdown Voltage |
|---|---|---|---|---|---|---|---|---|
| DR8516 | General Purpose Silicone Sealant | White / Black Paste | <30 min | 20-40 | ≥150% | ≥1.5 MPa | ≥1.0×10¹⁴ Ω·cm | ≥18 kV/mm |
Application
Frequently Asked Questions
DR8516 is a single-component, neutral-cure silicone sealant that requires no mixing or degassing, making it completely non-corrosive to copper, electronics, and delicate engineering plastics.
DR8516 has a tack-free time of less than 30 minutes and a cured Shore A hardness range of 20 to 40, ensuring rapid handling and balanced elastomeric flexibility.
Yes. DR8516 features optimized rheology and thixotropy that dispenses smoothly without stringing or tailing, while minimizing volume shrinkage during cure for consistent joint sealing.
The product line has low odor formulation for enclosed workshop safety and strictly complies with international environmental standards including Halogen-Free (HF), RoHS, and REACH.
It establishes a resilient elastomeric bond that absorbs mechanical vibrations and differential thermal expansion across metals, glass, and polymers, effectively blocking out moisture, dust, and industrial fluids.
DR8516 provides strong electrical insulation with a volume resistivity of ≥1.0×10¹⁴ Ω·cm and a breakdown voltage of ≥18 kV/mm, making it ideal for power and electronic assemblies.
