Manhole covers made of polymer concrete are resistant to many types of chemicals
CHEMICAL RESISTANCE
Polymeric concrete is one of the resistant materials against all kind of chemical products without any reaction to contact, deformation or disintegration.
| SAMPLE No. | TEST | NOTES |
|---|---|---|
| 1 | Sulphuric acid 10% | No effect |
| 2 | Hydrochloric acid 10% | No effect |
| 3 | Kerosin | No effect |
| 4 | Sodium Hydroxide solution | No effect |
| 5 | Sodium chloride | No effect |
| 6 | Sulphate solution | No effect |
| 7 | Sulphate solution | No effect |
| 8 | Nitrate solution | No effect |
All test above mentioned are performed by NATIONAL RESEARCH CENTER, Egypt
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| Marmox Manhole Covers without Rust Or Corrosion | Regular Cast Iron Manhole Covers Affected by rust |
