Fire And Accoustic Mastic 310mm White and Brown Finish Each

The Fire and Acoustic Mastic 310mm is an advanced, flexible sealant designed for both professional and domestic use to deliver unbeatable fire protection, acoustic insulation, and long-lasting durability. Available in a high-performance white or brown finish, this mastic ensures seamless application in any interior or exterior setting where both safety and style matter.

Built for precision, performance, and protection, this sealant combines excellent adhesion with premium-grade resistance against heat, smoke, and noise. Whether sealing service penetrations, linear joints, or partitions, the Fire and Acoustic Mastic 310mm provides a complete solution trusted by builders, contractors, and facility managers across the UK.

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What is Fire and Acoustic Mastic 310mm?

Fire and Acoustic Mastic 310mm is a high-performance pliable sealant specially engineered to seal construction joints, gaps, and service penetrations in fire-rated structures. It provides an effective fire-stopping barrier while also reducing the transmission of sound through joints and openings.

This advanced formulation expands when exposed to fire, forming an insulating char that prevents smoke and flame from passing through, protecting structural integrity and containing fire within designated compartments. Beyond fire protection, it significantly improves acoustic insulation, making environments quieter, safer, and more comfortable.

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Key Features of Fire and Acoustic Mastic 310mm

• Tested according to latest BS and EN fire resistance standards.

• Fire-resistant up to 4 hours when used in approved joint systems.

• Excellent acoustic properties for effective noise reduction.

• Bonds easily with concrete, masonry, gypsum board, metal, and timber.

• Remains highly flexible, allowing for movement without cracking.

• Non-toxic, solvent-free formulation suitable for indoor use.

• Paintable surface for a clean and professional finish.

• Available in 310mm cartridges, easy to apply using a standard mastic gun.

• Offered in both white and brown finishes to match various interior designs.

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Fire Resistance and Protection

When exposed to heat or flames, Fire and Acoustic Mastic 310mm expands rapidly, forming a dense carbonised char that seals the joint, halting the spread of fire, smoke, and toxic gases. The cured mastic helps maintain fire compartmentation and integrity for up to 4 hours, depending on joint configuration and depth.

Each application creates a vital barrier within walls, ceilings, and partition systems, making it an essential component of any passively protected building. Builders and fire safety engineers rely on the Fire and Acoustic Mastic 310mm to meet regulatory compliance in hospitals, schools, offices, and residential spaces.

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Acoustic Performance – Silence in Every Space

The Fire and Acoustic Mastic 310mm excels in not only fire safety but also soundproofing. Its dense, elastic texture dampens sound vibrations between adjoining materials, reducing airborne sound transmission across partition joints.

When combined with fire-rated plasterboard systems and acoustic sealant tapes, it enhances the overall sound insulation to deliver a peaceful and quiet indoor environment — ideal for offices, recording spaces, and high-traffic residential buildings.

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Application and Coverage

With its 310mm cartridge size, Fire and Acoustic Mastic 310mm fits standard sealant guns, allowing precise distribution and easy control. It is suitable for:

• Sealing linear joints and perimeters of plasterboard partitions.

• Filling gaps between walls, ceilings, and floors.

• Surrounding socket boxes and service penetrations.

• Perimeter sealing around door and window frames.

• Fireproofing gaps in concrete, blockwork, and metal substrates.

• Acoustic sealing where sound reduction is required between rooms.

The average coverage per cartridge depends on joint width and depth, but typically one 310mm tube covers approximately 3 linear metres at a 10x10mm joint size.

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Step-by-Step Application Guide

1. Surface Preparation: Ensure surfaces are clean, dry, and free from dust or grease. Use a brush or vacuum to clear debris.

2. Masking: Apply masking tape if a neat edge is needed.

3. Cartridge Setup: Cut off the nozzle, fix it to the cartridge, and insert into a mastic gun.

4. Application: Apply an even bead of Fire and Acoustic Mastic 310mm along the gap or joint.

5. Finishing: Smooth with a spatula before skin formation.

6. Curing: Allow 24 hours for full cure, depending on joint size and ambient temperature.

For best results, apply between 5°C and 30°C in dry conditions.

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Compatibility and Surface Adhesion

The Fire and Acoustic Mastic 310mm bonds effectively to most common construction materials, including:

• Concrete and brickwork

• Gypsum boards and plaster

• Timber frames

• Painted surfaces

• PVC and coated metals

No primer is usually required unless surfaces are excessively porous or contaminated.

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Finishes Available – White and Brown

To ensure seamless integration with diverse interior or exterior designs, the Fire and Acoustic Mastic 310mm comes in two aesthetic finishes:

• White: Ideal for clean, modern interiors and easily overpainted to match wall or partition colours.

• Brown: Perfect for darker surfaces, timber, or where natural tones are preferred.

Both finishes deliver equal fire and acoustic performance, maintaining flexibility and professional appeal after curing.

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Long-Term Reliability

The Fire and Acoustic Mastic 310mm is designed for longevity. Once cured, it stays elastic, resisting cracking and shrinkage caused by movement or vibration over time. The non-slump formula ensures vertical and overhead application is possible without sagging.

Manufactured under stringent quality control, this product meets key European testing standards for durability, adhesion, and fire containment, giving peace of mind to contractors and building owners.

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Compliance, Testing, and Certification

• Tested in accordance with BS EN 1366-4 for fire resistance of joints.

• Classified to BS EN ISO 717/1 for acoustic performance.

• Complies with BS 476 Part 20/22 for fire integrity and insulation.

• CE-marked under Construction Products Regulation (CPR).

• Complies with environmental and health regulations for low VOC emissions.

These certifications ensure the Fire and Acoustic Mastic 310mm performs to the highest industry standards in both safety and acoustic control.

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Applications Across Industries

The versatility and reliability of Fire and Acoustic Mastic 310mm make it suitable for a wide range of sectors:

• Construction: Sealing fire-rated wall and floor joints.

• Healthcare: Maintaining fire compartmentation in hospitals and clinics.

• Educational Institutions: Enhancing safety and comfort in classrooms and laboratories.

• Commercial Buildings: Used in office partitions, acoustic walls, and service risers.

• Residential Developments: Fireproofing door frames, skirting gaps, and service pipe penetrations.

• Industrial Facilities: Where noise, vibration, and fire protection require consistent control.

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Environmental Benefits

Unlike solvent-based alternatives, Fire and Acoustic Mastic 310mm features a low-VOC, environmentally friendly formulation. It supports sustainable construction goals through safer indoor air quality and cleaner working conditions.

It is easy to clean with water when wet and does not emit unpleasant odours during use. Its long service life also reduces replacement waste, contributing to environmentally responsible building practices.

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Storage and Shelf Life

To maintain maximum performance, store Fire and Acoustic Mastic 310mm in cool, dry conditions between 5°C and 25°C. Keep away from direct sunlight or frost. When stored properly, the product retains its quality for up to 12 months from manufacture.

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Why Choose Fire and Acoustic Mastic 310mm?

• Delivers proven fire resistance and sound insulation in one versatile product.

• Reliable performance backed by independent lab testing and certification.

• Simple to apply for both professionals and DIY users.

• Flexible and paintable for polished, durable finishes.

• Compatible with diverse materials and joint types.

• Eco-friendly, solvent-free composition ideal for modern green buildings.

The Fire and Acoustic Mastic 310mm stands out as the ultimate solution for anyone prioritising safety, silence, and structural protection.

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Technical Specifications

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Packaging and Availability

Each Fire and Acoustic Mastic 310mm cartridge is individually packaged for cleanliness and convenience. Available for wholesale and individual purchase, with discounts offered for bulk orders.

Choose between White or Brown Finish to suit your design and application requirements. Every cartridge is packaged for long shelf life and easy on-site storage.

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Customer Use Recommendations

• For best results, pair with complementary fire-resistant products such as fire collars, wraps, or fire boards.

• Verify that all substrates and surfaces are properly prepared before application.

• Avoid applying on continuously wet surfaces or submerged areas.

• Test compatibility when painting over the mastic with acrylic or emulsion coatings.

• Follow site fire-stopping specifications for tested joint designs and configurations.

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Common Questions About Fire and Acoustic Mastic 310mm

Q1: Can Fire and Acoustic Mastic 310mm be used externally?
Yes, it can be used in sheltered exterior joints but should not be exposed to prolonged water immersion.

Q2: How long does it take to dry?
Typically, the surface skins over within 30 minutes and fully cures within 24 hours, depending on joint thickness and air conditions.

Q3: Can this product replace standard decorator’s caulk?
While visually similar, Fire and Acoustic Mastic 310mm is much more advanced, designed specifically for fire integrity and sound insulation.

Q4: Is the mastic flexible after curing?
Yes, it retains flexibility, allowing for movement in the joint without cracking or peeling.

Q5: Can I paint it after curing?
Yes, it is fully paintable once cured, blending seamlessly with adjacent surfaces.

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Safety Information

Fire and Acoustic Mastic 310mm is safe when used as directed. Avoid contact with eyes or prolonged skin exposure. Clean tools and excess product immediately with water before curing. Once cured, the product can be removed mechanically.

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Buy Fire and Acoustic Mastic 310mm Online

Upgrade your project’s safety and performance with the Fire and Acoustic Mastic 310mm – the trusted solution for superior fire resistance, durable adhesion, and effective soundproofing.

Order online today and choose between White and Brown Finish (Each) options. Perfect for both trade professionals and homeowners, this sealant ensures every joint is sealed with confidence, compliance, and quality.