Press Release Summary:
Made from melted basalt rock without any additives, tadpole seals feature 100% recyclable, basalt woven fiberÂ to offer environmentally friendly alternative to fiberglass materials. Properties include 2,500–3,000 mpa tensile strength;Â acid/alkali, abrasion, and chemicalÂ resistance; and thermal conductivity of 1.44–1.46 W/m-k. WithÂ 2,642Â°F melting point, this non-hazardous, non-combustible, fire-resistant material operates up to 1,200Â°F (continuous) and 1,800Â°F (intermittent).
Original Press Release:
NEW PRODUCT - Basalt Tadpole Seals
Basalt woven fiber is an environmentally friendly alternative to fiberglass materials. With excellent tensile strength, excellent resistance to Acid and Alkali, High abrasive resistance and a high melting point. Basalt is originates from igneos rock (volcanic, molten lava) and is 100% Recyclable.
- Basalt is a volcanic rock that has natural fire resistant components. The use of basalt in fibers is a potentially stronger, safer product than traditional glass fibers.
- No secondary materials (unlike glass fibers)
- More abrasive so harder on equipment
Basalt vs. Glass Fibers
The main difference is that E-Glass is made from a complex batch of materials, wheras Basalt Fiber is made from meltingbasalt (volcanic) rock with no other additives need. This makes Basalt-based matererials very environmentally firendly and non-hazardous.
Basalt Benefits compared to standard Fiberglass Include:
• 20-25% Higher Tensile Strength
• 10-15% Higher Tensile Modulus
• Higher Melting Point
• Higher Operating Temperature
• Extended Temperature range
• Non-combustable, Fire-Resistant Material
• Superior Abrasion Resistance
• Greater Thermal COnductivity
• Better Chemical Resistance, (4.5% better)
• Low water absorption properties
• Superior adhesion characteristics for coating
• resistance to electromagnetic radiation
- Fire-blocking tests performed by Basaltex placed its basalt fabric in front of a Bunsen burner, placing the yellow tip of the flame in direct contact with the fabric. The yellow tip reaches temperatures of 1100°C to 1200°C (2012°F to 2192°F) and causes the fabric to become red hot, similar to a metal fabric. When exposed to the flame, basalt fiber maintains its physical integrity for extended periods of times, but the company found that a fabric made of E-glass with the same density can be pierced by the flame in a matter of seconds.
Tensile Strength (MPA)
2,500 to 3,000
1,400 to 2,600
Density/Specific Gravity (g/cm2)
Dielectric constant (at 1mhz)
Thermal Conductivity (W/m-k)
1.44 - 1.46
Temperature Rating (continuous)
Temperature Rating (intermittent)