Basalt fiber double sided sheet
September 15, 2009 by admin
Filed under basalt composites
Our new double sided Basalt fiber sheet is similar to our regular Basalt sheet in that it far surpasses fiberglass G-10 garolite sheets. Again G-10 garolite has a tensile strength of 40,000 psi whereas our Basalt fiber sheet has 70,000 psi. We are currently offering a limited number of these for our customers to try out.
Remember Sierra Composites is the only North American manufacturer of basalt fiber sheets. Our double sided sheets have an excellent surface ready for paint. An 10.5″x7.5″ sheet at .047″ (1.2mm) only weighs 4oz (106g). Price is $22.95. You can purchase these right here from our online store.
| Property | Unit | Basalt | E-Glass | S-Glass |
| Tensile Strength | MPa | 484 | 345 | 471 |
| Elastic modulus | GPa | 89 | 77 | 89 |
| Elongation at Break | % | 3.15 | 4.7 | 5.6 |

Basalt fiber sheets for R/C use
June 22, 2009 by admin
Filed under basalt composites, product news
Sierra Composites has just released the first size of our Basalt fiber sheets specifically designed for R/C use. Basalt fiber composites have mechanical properties close and in some cases greater than carbon fiber sheets, the greatest difference is that they are very inexpensive. Basalt fiber sheets are also a great improvement over the typical fiberglass G-10 sheets. Fiberglass G-10 sheets are designed for printed electronic circuit boards not R/C applications and therefore have all the low grade qualities of e-glass fiberglass, the lowest of all composite fibers. Compare a typical G-10 garolite tensile strength of 40,000 psi to a basalt 9 micron fiber tensile strength of 70,000 psi. If you plan on using G-10 garolite for a structural application you can see how much more strength you could have by using a basalt sheet instead.
Remember Sierra Composites is the only North American manufacturer of basalt fiber sheets. Our sheets have an excellent surface ready for paint and a slight texture back for bonding. An 11″x8″ sheet at .022″ only weighs 1.9oz (53g) and the cost is only $11.95.
Check these sheets out on our e-store right here.

Basalt / carbon fiber sheet hybrid 11″x16″ @ .023″
May 27, 2009 by admin
Filed under basalt composites, product news
Sierra Composites is the only North American manufacturer of Basalt / carbon fiber sheet hybrids. What’s Basalt? Made from natural volcanic rock Basalt fabrics offer some incredible performance including matching carbon fiber in tensile strength. The best feature of our Basalt / carbon fiber sheet hybrids is the lower price. The Basalt .023″ sheet is priced at 30% lower than our .023″ carbon fiber sheet. And well they both will do the same job and they look identical.
Basalt / carbon fiber sheet 2.5mm R/C Special use
May 26, 2009 by admin
Filed under basalt composites
This carbon fiber / basalt hybrid sheet is one of a series of prototype 2.5mm sheets we made specifically for R/C use. The sheet is double sided smooth and glossy. The sheet was made using Hexcel IM7GP 5HS and Basalt fabric 12K Unidirectional. The unidirectional is positioned down the length of the sheet, giving the most rigidity in that direction. We would like some feedback on these, we would like to know if our customers like this product enough to include into our line of carbon fiber sheet products.

