OB1 Fire Resistant Hybrid Sealant 290ml

The OB1 Fire Resistant Hybrid Sealant is a high-performance, professional-grade sealant designed for applications where fire resistance, durability, and flexibility are essential. Formulated with advanced hybrid polymer technology, this sealant provides outstanding adhesion, movement capability, and resistance to harsh environmental conditions.

Ideal for construction, industrial, and domestic use, OB1 Fire Resistant Sealant delivers long-lasting protection while maintaining structural integrity and safety.

Key Features & Benefits

✅ Fire Resistant for Enhanced Safety
Engineered to meet strict fire safety standards, OB1 Fire Resistant Hybrid Sealant provides an effective barrier against the spread of fire and smoke in buildings, making it ideal for fire-rated joints, walls, ceilings, and sealing around fire doors and service penetrations.

✅ Very Low VOCs – Safe for Indoor Use
OB1 Fire Resistant Hybrid Sealant has very low levels of volatile organic compounds (VOCs), making it an eco-friendly and safer choice for use in homes, offices, hospitals, schools, and confined spaces. It does not release harmful fumes, ensuring a healthier environment.

✅ UV & Weather Resistant – Ideal for Indoor & Outdoor Use
Designed to withstand harsh weather conditions, OB1 is UV-resistant and will not degrade, crack, or discolor when exposed to sunlight, rain, or extreme temperatures. This makes it perfect for both interior and exterior sealing applications.

✅ Paintable for a Seamless Finish
Unlike many traditional fire-rated sealants, OB1 is fully paintable, allowing you to blend it seamlessly with surrounding surfaces. Once cured, it can be painted with most water-based and oil-based paints, ensuring a professional finish every time.

✅ Resists Fungal Growth – Ideal for Damp Environments
Mold and mildew resistance is a crucial feature of OB1 Fire Resistant Hybrid Sealant. It prevents fungal growth, making it perfect for bathrooms, kitchens, and high-humidity areas where moisture exposure is common.

✅ Flexible with Movement Capability up to 25%
Buildings and structures naturally expand and contract due to temperature fluctuations and settling movements. OB1 accommodates these movements with up to 25% flexibility, preventing cracks and ensuring a durable, long-lasting seal.

Ideal Applications

OB1 Fire Resistant Hybrid Sealant is a versatile, high-performance sealant suitable for:
✔ Fire-Rated Joints & Expansion Joints – Provides a fire-resistant, flexible seal for walls, ceilings, and floors.
✔ Sealing Gaps Around Fire Doors & Windows – Prevents the spread of fire and smoke, ensuring fire safety compliance.
✔ Sealing Service Penetrations – Ideal for sealing around pipes, cables, and ducts where fire resistance is required.
✔ Exterior & Interior Weatherproofing – Provides long-term UV and weather protection for building facades and joints.
✔ Bathrooms & Kitchens – Resists fungal growth and moisture, making it ideal for wet areas.

Product Weight & Dimensions

• Boxed Weight: 500g
• Volume: 290ml

Designed for use with a standard sealant gun, OB1 ensures precise application for both professionals and DIY users.

Frequently Asked Questions (FAQs)

1. Is OB1 Fire Resistant Hybrid Sealant compliant with fire safety regulations?

Yes, OB1 is fire-resistant and meets industry standards for fire-rated sealing applications. Always check local building codes for specific fire rating requirements.

2. Can OB1 be used in exterior applications?

Yes! OB1 is UV and weather-resistant, making it suitable for both interior and exterior use.

3. Does OB1 Fire Resistant Hybrid Sealant contain harmful chemicals?

No, OB1 has very low VOC levels, meaning it is safe for indoor use and does not emit harmful fumes.

4. Can OB1 be painted over?

Yes! Once cured, OB1 is fully paintable with most water-based and oil-based paints.

5. Is OB1 suitable for bathrooms and kitchens?

Yes, OB1 resists fungal growth and moisture, making it ideal for high-humidity areas such as bathrooms and kitchens.

6. How long does OB1 take to cure?

OB1 starts to skin over within 20 minutes and achieves full cure within 24-48 hours, depending on temperature and humidity.

7. Does OB1 remain flexible over time?

Yes! OB1 provides up to 25% movement capability, allowing for structural expansion and contraction without cracking.

8. What surfaces should OB1 not be used on?

OB1 is not recommended for bitumen, Teflon, or waxy/oily surfaces. Always clean and prep surfaces before application.

Warranty Information

OB1 Fire Resistant Hybrid Sealant is manufactured to the highest industry standards and is backed by a manufacturer’s warranty against defects in materials and workmanship.

For full warranty details, please refer to the manufacturer’s terms or contact customer support.

Why Choose OB1 Fire Resistant Hybrid Sealant?

✔ Fire-resistant for enhanced safety
✔ Low VOC formula – Safe for indoor use
✔ UV and weather-resistant – Ideal for exterior applications
✔ Paintable for a seamless finish
✔ Resists fungal growth – Perfect for kitchens and bathrooms
✔ Flexible with up to 25% movement capability

OB1 Fire Resistant Hybrid Sealant is the ultimate solution for professionals and DIY users looking for superior performance, safety, and long-term durability.