Rockfiber

Rockfiber Basalt Fiber Production and Sale. ◎ What is Basalt Fiber? Basalt fiber is a mineral inorganic based, derived from the Basalt Volcanic Rock.

It has excellent physical, mechanical and chemical properties, derived from molten basalt. Its main characteristics are:
➢ Not subject to corrosive changes
➢ High resistance
➢ Fire resistance
➢ Low thermal conductivity
➢ Light
➢ Resistant to harsh environments
➢ Not magnetized
➢Has dielectric properties

ROCKFIBER is producing and selling from azorean island´s basalt stone. Our available products,

are:

▶︎ Continuous basalt fiber, Roving - CBF
▶︎ Cut Basalt Fiber, Chopped
▶︎ Powder Basalt Fiber, Milled

Can be applied in:

✷ Fireproof textile
✷ Aerospace sector
✷ Automotive
✷ Defense
✷ Construction: Rebar and Mesh
✷ Reinforcement concrete
✷ High pressure gas tanks and CNG cylinders
✷ Offshore Structures
✷ Shipping
✷ Sports equipment
✷ Textiles

Sustainable Composite:
◘ Natural fiber
◘ Low carbon footprint
◘ Possibility of recycling

🪨 Impact of eco-friendly basalt fillers on silicone rubberWe are pleased to share the latest research highlights from RO...
16/07/2026

🪨 Impact of eco-friendly basalt fillers on silicone rubber

We are pleased to share the latest research highlights from ROCKFIBER, demonstrating how sustainable basalt-based solutions can significantly enhance the performance of silicone rubber.

By combining eco-friendly basalt fillers with a hybrid intumescent flame retardant (IFR) system, the study achieved remarkable improvements in fire resistance, thermal stability and overall material performance.

🔬 Research Highlights

🪨 Basalt Reinforcement
Basalt fillers successfully incorporated into silicone rubber (SR).

🔗 Enhanced Interface
Silane-treated basalt improves filler–matrix interfacial adhesion.

🔥 Hybrid IFR System
Synergistic integration of carbon, acid and gas sources.

🛡️ Superior Fire Performance
• LOI: 37.2%
• UL94: V-0

🌡️ Improved Thermal Stability
Higher thermal stability and increased char yield after combustion.

These findings reinforce the potential of basalt fiber as a sustainable, high-performance solution for advanced engineering applications requiring safety, durability and environmental responsibility.

🌍 Natural. Resistant. Sustainable.

🌐 www.rockfiber.pt

📧 [email protected]

📞 +351 918 726 238

📍 Portugal
🗞️ https://www.sciencedirect.com/science/article/abs/pii/S0032386126009043

🪨 Impact of eco-friendly basalt fillers on silicone rubberWe are pleased to share the latest research highlights from RO...
16/07/2026

🪨 Impact of eco-friendly basalt fillers on silicone rubber

We are pleased to share the latest research highlights from ROCKFIBER, demonstrating how sustainable basalt-based solutions can significantly enhance the performance of silicone rubber.

By combining eco-friendly basalt fillers with a hybrid intumescent flame retardant (IFR) system, the study achieved remarkable improvements in fire resistance, thermal stability and overall material performance.

🔬 Research Highlights

🪨 Basalt Reinforcement
Basalt fillers successfully incorporated into silicone rubber (SR).

🔗 Enhanced Interface
Silane-treated basalt improves filler–matrix interfacial adhesion.

🔥 Hybrid IFR System
Synergistic integration of carbon, acid and gas sources.

🛡️ Superior Fire Performance
• LOI: 37.2%
• UL94: V-0

🌡️ Improved Thermal Stability
Higher thermal stability and increased char yield after combustion.

These findings reinforce the potential of basalt fiber as a sustainable, high-performance solution for advanced engineering applications requiring safety, durability and environmental responsibility.

🌍 Natural. Resistant. Sustainable.

🌐 www.rockfiber.pt

📧 [email protected]

📞 +351 918 726 238

📍 Portugal

🪨 Upgrade Your Surface Preparation with BasaltPerformance doesn’t start with the coating — it starts with the surface.In...
18/02/2026

🪨 Upgrade Your Surface Preparation with Basalt

Performance doesn’t start with the coating — it starts with the surface.

In mechanical stripping (sandblasting), the right abrasive makes all the difference. Basalt flakes and basalt fiber powder offer a powerful, more sustainable alternative to traditional media.

✔ Faster and effective removal of paint and corrosion
✔ Consistent surface profile for better adhesion
✔ Reduced free-silica exposure
✔ Reusable in controlled systems
✔ Sustainable, natural volcanic origin

Stronger adhesion. Longer coating life. Lower environmental impact.

If you’re looking for a smarter abrasive solution for industrial applications, basalt delivers performance with responsibility.

Sustainability begins at the surface.

SustainableMaterials Rockfiber

18/02/2026

VISIT US
We are going to be at the 17th edition of AMI
Fire Resistance in Plastics which takes place on 28 - 30 November 2022 at the Lindner Hotel City Plaza, in Cologne, Germany

ROCKFIBER is a brand from Azores Islands, S.Miguel- Portugal. It is a basalt fiber and scales eco composite, a natural biber which is, also, a flame retardant and fire resistant additive. It´s main features, are:
> Natural Fiber
> Eco Composite
> Carbon Footprint- 1,4 x 103 kg CO2 eq./t
> Contains SiO2 (43-45%)
> High resistance
> Great fire resistance
> Heat resistance up to 1000ºC (TGA)
> Does not absorb water
> Low thermal conductivity
> Without sizing
> Halogens free
> A1 class in fire and smoke
> Light
> Not subject to corrosive changes
> Resistant to harsh environments
> Resistant to alkali environments
> Salt water resistant
> Not magnetized
> Has dielectric properties
> Durable
> Absolutely environment friendly
>Wear resistant
>Contains radiation but does not absorb it

At the moment we can provide: Chopped basalt fiber (hard/ breakable fiber); Basalt scales/ Flake/ Film and Basalt fiber powder.

We have been getting good feedback from our fibers and scales incorporated with: polymers; glues; resins; coatings; mortars; hempcrete;blockboards; paints; mufflers; silicon rubber and styrofoam.



🪨 Basalt as a Sustainable Abrasive in Mechanical StrippingSurface preparation remains one of the most critical factors i...
18/02/2026

🪨 Basalt as a Sustainable Abrasive in Mechanical Stripping

Surface preparation remains one of the most critical factors in the long-term performance of any coating system. Without proper cleaning and profiling, there is no adhesion — and without adhesion, there is no durability.

In mechanical stripping (sandblasting), abrasive particles are projected by compressed air to remove:

✔️ Old paint
✔️ Rust and corrosion
✔️ Industrial contaminants
✔️ Scale and degraded coatings

An emerging alternative in abrasive media is the use of basalt flakes and basalt fiber powder.

Why basalt?

🔹 Naturally occurring volcanic rock
🔹 High hardness and thermal resistance
🔹 Low free-silica content
🔹 Potential reusability in controlled systems
🔹 More sustainable alternative to traditional abrasives

Beyond effective coating removal, basalt abrasives can create an optimal surface profile for anti-corrosion systems and advanced industrial coatings — enhancing long-term structural protection.

As industries move toward safer and more environmentally responsible solutions, basalt presents a technically robust and forward-thinking option.

Innovation in sustainability doesn’t start with the final coating — it starts with surface preparation.

21/01/2026

🔥 Escamas de basalto: proteção mineral contra a chama

As escamas de basalto são não-combustíveis e, quando usadas como revestimento, criam uma barreira térmica que retarda a ação da chama e aumenta significativamente a durabilidade dos materiais expostos ao fogo.

Dependendo da formulação e da espessura aplicada, o revestimento pode ganhar considerável tempo de resistência ao fogo, além de maior estabilidade térmica e vida útil.

Uma solução robusta, mineral e sustentável para aplicações críticas.


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