Minnesota Department of Transportation

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Approved/Qualified Products

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Bridge structural steel coating

Three Coat Systems - Organic
Manufacturer Primer Intermediate Coat Finish Coat 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 Stampede 11/2005
Sherwin Williams Zin Clad IV Recoatable Epoxy B67 Series Acrolon 218 HS Stampede 3/2001
International Paint Interzinc 315B Intergard 475HS Interthane 870UHS Semi-Gloss NA 4/2010
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 Stampede 4/2003
Sherwin Williams Carbo Zinc 11 HS** Macropoxy 646 Acrolon 218 HS Stampede 6/2006
Sherwin Williams Carbo Zinc 11 HS ** Recoatable Epoxy Primer Acrolon 218 HS Stampede 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 satisfarory laboratory testing which has shown compatibility of the primer with the topcoats. Contact Jim McGraw for laboratory testing requirements.

Moisture Cure Urethane +
Manufacturer Primer Intermediate Coat Finish Coat Paint Supplier's Recommended Caulk Approval Date
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 Stampede 4/2003

+Systems may be different for overcoating

Two Coat Systems
Manufacturer Primer Intermediate Coat Finish Coat Paint Supplier's Recommended Caulk Approval Date
Sherwin Williams Corthane I Galva-Pac One Pack Zinc Primer NA Fast-Clad DOT Urethane Stampede 4/2005