Advantages of RD-6®:
• RD-6 is a non-shielding coating. In the case of a coating disbondment, the cathodic protection current will not be
shielded and will be able to reach the substrate.
• RD-6 has excellent resistance to cathodic disbondment, even with below standard surface preparation.
• The geotextile backing used with RD-6 provides physical properties of high breaking strength, low elongation and high
temperature resistance which all contribute to resistance of soil stress and continued corrosion protection.
• RD-6 is fast, easy-to-apply, and can be backfilled immediately after coating.
• RD-6 has visco-elastic properties to accommodate normal expansion and contraction of the substrate.
• The woven construction of the geotextile backing of RD-6 permits contact throughout the overlaps providing stronger
adhesion in this critical area of the coating.
• RD-6 has excellent water vapor transmission resistance.
• RD-6 has a uniform factory-controlled thickness, typically not possible with field-applied liquid coatings.
RD-6 Property Data:
| Property | ASTM Method | Typical Results (Metric) | Typical Results (English) |
|---|---|---|---|
| Total Thickness – Single layer of RD-6 Coating | D 1000 | 1.27 mm | 0.05 inches (50 mils) |
| Breaking Strength | D 1000 | 193 N/10mm width | 110 Lbs.F/in. width |
| Elongation % at break | D 1000 | < 30% | < 30% |
| Water Vapor Transmission Rate | E 96 Procedure B | .006 g/h•m2 | .009 grains/h•ft2 |
| Cathodic Disbondment – 77°F (25°C), 30 days, 1.5V | G 8 | < 5 mm radius | < 0.197 in. radius |
| Cathodic Disbondment – 150°F (66°C), 90 days, 3.0V | G 42 | < 10 mm radius | < 0.4 in. radius |
| Non-shielding properties (Does not shield cathodic protection currents) |
Internal Polyguard | Pass (non-shielding) | Pass (non-shielding) |
| Dielectric Strength (breakdown voltage, KV) | D 149 | > 12 KV (9.45 V/µm) |
> 12 KV (240 V/mil) |
| Adhesion to primed surface | D 1000 Method A | 35 N/10mm width | 20 lbs. F/in. width |
| Adhesion to polyethylene | D 1000 Method A | 28 N/10mm width | 16 lbs. F/in. width |
| Impact Resistance | G 14 | 2.6 g/cm | 23.0 in./lb. |
