What is rtv sealant？

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RTV silicone sealant, or Room Temperature Vulcanizing Silicone Sealant, is an organic silicone sealing material that cures at room temperature and is widely used in various fields such as construction, electronics, automotive, and aerospace. Here is a detailed introduction to RTV silicone sealant

1. Basic Characteristics

• Room-Temperature Curing (RTV): Cures at ambient temperature via moisture reaction (silicone cross-linking).
• Weather Resistance: UV-stable, wide temperature range (-60°C to +250°C), ozone/aging resistant.
• Electrical Insulation: High dielectric strength for electronics.
• Flexibility: Maintains elasticity post-curing, accommodating substrate movement.
• Chemical Inertness: Resists acids, alkalis, and solvents.

2. Main Types

• Acidic Cure (Acetoxy): Releases acetic acid; strong adhesion but corrosive to metals.
• Neutral Cure (Oxime/Alcohol): Non-corrosive, ideal for electronics/sensitive materials.
• Dealcoholized Type: Low odor, eco-friendly, suited for food/medical applications.

3. Applications

• Construction: Curtain wall joints, window sealing.
• Automotive: Engine gaskets, headlight waterproofing.
• Electronics: PCB coating, moisture protection.
• Industrial Repair: Pipe sealing, leak prevention.
• Aerospace: High-temperature sealing.

4. Key Notes

• Surface Prep: Clean/dry substrates for optimal adhesion.
• Curing Time: Skin forms in 30–120 mins; full cure in 24–72 hrs (humidity-dependent).
• Safety: Ventilation recommended for acidic types; avoid skin contact.

5. Comparison Table

Optional Add-ons:

• Colors: Transparent/white/black/custom.
• Certifications: FDA (food-grade), RoHS (electronics).

Let me know if you'd like product recommendations or application specifics!

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