RT-7500 is a specially formulated two-component, neutral-curing silicone sealant engineered for use as the secondary seal in insulating glass units (IGUs). It delivers outstanding durability, excellent weather resistance, and superior adhesion to glass, metal, and spacer materials, ensuring long-term structural integrity of the insulating glass system.
Key Advantages
Neutral Cure: Non-corrosive to sensitive substrates, low-odor
Weather Resistant: Withstands UV radiation, moisture, and extreme temperatures from -50°C to +150°C
Strong Adhesion: Bonds effectively to glass, aluminum, and various IGU spacer systems
Flexible & Durable: Accommodates thermal expansion and contraction without cracking
Standard Compliant: Meets I SR-20HM-JC/T 486-2001 performance criteria
Applications
Secondary sealing of dual-sealed insulating glass units
Suitable for curtain wall systems, commercial glazing, and specialty architectural glass
Ideal for IGUs exposed to high thermal stress, humidity, or environmental load






FAQ
1.What is your delivery time?
Our delivery time is 20 to 25 days for OEM order
2.Can you provide OEM service?
Of course we can do OEM services for customers brand
3.Can you make a new design for our brand?
Yes, our designers will make new designs as your requirements
4.Can I get some sample before order?
Yes free samples could be sent on your request