| Formaldehyde, used as a hardener and preservative, is a known carcinogen and can cause asthma. |
| Ruthenium's excellent resistance is the reason for its major use as a hardener in conjunction with various other metals. |
| Recommended suitable for small repairs using fast or spot repairs hardener. |
| This includes amongst others cutting the needed glass mats and glass fabric and the allocation of the required quantities of resin and hardener. |
| Adding smaller or larger quantities of hardener does not accelerate or delay the process. |
| It is critical that equal amounts of resin and hardener are mixed in the egg cup. |
