Frequent Questions
Fabrics, Membranes and Reinforcements: Frequently Asked Questions
Below is a list of some of the most popular fabric questions asked of us. If you have additional questions after reading this, please direct them to:
info@karnakcorp.com, use our
online form to request more information on a particular product, or see one of our other FAQ sections in related links.
Q: With what type of materials are Karnak Fabrics compatible?
A: The table listed below depicts the Karnak fabrics and materials they are compatible with.
Recommended Usage - Bituminous Materials
| #3036 Polymat |
YES |
NO |
YES |
NO |
| #5540 Resat-Mat |
YES |
NO |
YES |
NO |
| #34 Cotton Fabric |
YES |
NO |
NO |
NO |
| #31 Fiberglass Membrane |
YES |
NO |
YES |
NO |
| #130 Glass Mat |
YES |
NO |
YES |
NO |
Recommended Usage - Other Materials
| #3036 Polymat |
YES |
YES |
YES |
YES |
| #5540 Resat-Mat |
YES |
YES |
YES |
YES |
| #34 Cotton Fabric |
YES |
NO |
NO |
NO |
| #31 Fiberglass Membrane |
YES |
YES |
NO |
YES |
| #130 Glass Mat |
YES |
YES |
NO |
YES |
Q: What Karnak Fabrics are the best to use?
A: What Fabric to use will depend on the products being used (See Usage Chart), and the intended application. Listed below is the make-up of each Karnak Fabric.
Karnak #3036 Polymat and #5540 Resat-mat (both polyester)
- High tensile strength
- Rot and Mildew resistance
- Good resistance to solvents and chemicals
- Good low temperature properties
Karnak #31 Fiberglass Membrane and #130 Glass Mat (#130 not ASTM rated)
- ASTM D-1668 Type III
- Good flexibility without cracking
- High tensile strength
- Rot and Mildew resistant
- Acid and Alkali resistant
Karnak #34 Cotton Fabric
- Asphalt saturated
- Lightweight
- Ease of workability
- Flexibility
- Fiberglass and Polyester fabrics are stronger
Don't see your question here? Try one of our other FAQ sections:
You can also email your question to
info@karnakcorp.com, or use our
online form to request more information on a particular product.