BG1 vs. 3E Tape: Choosing the Right Sealing Solution for Your Project

When it comes to sealing joints in construction, not all tapes are created equal. Choosing the right sealing tape can make the difference between a durable, weatherproof structure and one that suffers from moisture issues, air leaks, or poor insulation.

At Oskorp, we offer BG1 and 3E tapes—both designed for high-performance joint sealing, yet built for different applications. Understanding their differences will help you select the best solution for your project.

What is BG1 Tape?

BG1 is a heavy-duty joint sealing tape designed to provide long-lasting protection in structural applications. Whether you’re working on facades, expansion joints, or prefabricated construction, BG1 ensures airtightness, weatherproofing, and noise reduction—even under extreme conditions.

Key Benefits of BG1:

• Extreme Weather Resistance – Withstands driving rain up to 22 psf and tested for 15+ years of outdoor exposure.
• Superior Airtightness – Ensures windproof sealing while allowing vapor diffusion.
• High Thermal & Acoustic Insulation – Reduces energy loss and provides up to 59 dB sound insulation, perfect for noise reduction.
• Fire Safety Certified – Rated for low flammability and meets strict fire protection standards.
• Versatile Application – Ideal for facades, masonry, expansion joints, and wood construction.

📌 Best for: Heavy-duty structural joints, exterior facades, and expansion joints.

What is 3E Tape?

3E is a multi-functional joint sealing tape designed specifically for window and door installations. With its moisture-adaptive properties, it ensures airtight sealing while preventing condensation buildup, making it ideal for passive house applications and energy-efficient buildings.

Key Benefits of 3E:

• Moisture-Adaptive Technology – Adjusts to humidity levels, ensuring a dry joint year-round.
• Superior Airtightness – Seals windows and doors with zero air leakage, improving energy efficiency.
• Weather-Resistant – Protects against driving rain up to 22 psf, preventing water penetration.
• Fast & Easy Installation – Pre-compressed with a pressure-sensitive adhesive for quick application.
• Fire Safe & Low Emissions – Certified for halogen-free fire resistance and low VOC emissions.

📌 Best for: Window and door sealing, airtight construction, and energy-efficient buildings.

Final Verdict: The Right Tape for the Right Job

• Choose BG1 if you need long-term, heavy-duty joint sealing for facades, expansion joints, and masonry.
• Choose 3E if you need a fast, moisture-adaptive solution for windows and doors to prevent condensation and ensure airtightness.

Both tapes offer exceptional performance, but selecting the right one ensures a durable, efficient, and energy-saving building envelope.

Need help deciding? Contact us today and let’s find the best sealing solution for your next project!

📧 Email: welcome@oskorp.com
📍 Website: www.oskorp.com