Bridge structural steel coating
Three Coat Systems - Organic
| Manufacturer | Primer | Intermediate Coat | Finish Coat | Corrosion Inhibiting Penetrating Sealer * | Paint Supplier's Recommended Caulk | Approval Date |
|---|---|---|---|---|---|---|
| PPG/PMC Amercoat | Amercoat 68 HS | Amercoat 385 Multi-Purpose | Amercoat 450 HSG | - | Sikaflex 1 | 6/2009 |
| Carboline Co. | Carbozinc 859 | Carboguard 893 | Carbothane 133 VOC | - | Vulkem | 4/2015 |
| Sherwin Williams | Zinc Clad III HS | Macropoxy 646 | Acrolon 218 HS | Macropoxy 5000 | Loxon H1 Hybrid Sealant or 3M 730 Clear |
11/2005 |
| Sherwin Williams | Zinc Clad IV | Recoatable Epoxy B67 Series | Acrolon 218 HS | Macropoxy 5000 | Loxon H1 Hybrid Sealant or 3M 730 Clear |
3/2001 |
| International Paint | Interzinc 315B | Intergard 475HS | Interthane 870UHS Semi-Gloss | - | NA | 4/2010 |
*This is to be used for pack rust mitigation areas after proper cleaning according to special provision.
Three Coat Systems - Inorganic
| Manufacturer | Primer | Intermediate Coat | Finish Coat | Paint Supplier's Recommended Caulk | Approval Date |
|---|---|---|---|---|---|
| PPG/PMC Amercoat | Dimecote D-9H | Amercoat 385 Multi-Purpose | Amercoat 450 HSG | Sikaflex 1 | 6/2009 |
| Carboline Co. | Carbo Zinc 11 HS | Carboline 893 | Carboline 133 HB | Vulkem | 12/1995 |
| Sherwin Williams | Zinc Clad II Plus | Macropoxy 646 | Acrolon 218 HS | Loxon H1 Hybrid Sealant or 3M 730 Clear |
4/2003 |
| Sherwin Williams | Carbo Zinc 11 HS** | Macropoxy 646 | Acrolon 218 HS | Loxon H1 Hybrid Sealant or 3M 730 Clear |
6/2006 |
| Sherwin Williams | Carbo Zinc 11 HS ** | Recoatable Epoxy Primer | Acrolon 218 HS | Loxon H1 Hybrid Sealant or 3M 730 Clear |
2/2009 |
| International Protective | Interzinc 22 HS IOZ Silicate | Intergard 475 HS Epoxy | Interthane 870 Polyurethane | NA | 4/2006 |
| ICI-Devoe | Catha-Coat 304V | Bar-rust Epoxy 231 | Devthane Urethane 379UVA | NA | 10/2006 |
**MnDOT has approved this system based on satisfactory laboratory testing which has shown compatibility of the primer with the topcoats. Contact Allen Gallistel for laboratory testing requirements.
Moisture Cure Urethane ***
| Manufacturer | Primer | Intermediate Coat | Finish Coat | Paint Supplier's Recommended Caulk | Approval Date |
|---|---|---|---|---|---|
| Polyval - Xymax Coatings | MonoZinc ME III Moisture Cure Primer | MonoFerro PUR Moisture Cure | Bridge Finish | NA | 3/2001 |
| Sherwin Williams | Corthane I GalvaPac Zinc | Corothane I - Iron Ox B | Corothane Iron Ox A HS | Loxon H1 Hybrid Sealant or 3M 730 Clear |
4/2003 |
*** Systems may be different for overcoating
Two Coat Systems
| Manufacturer | Primer | Finish Coat | Paint Supplier's Recommended Caulk | Approval Date |
|---|---|---|---|---|
| - | - | - | - | - |