---
title: Weld Through Shop Coats | Rust Inhibitive Coating | Steel Supply Co.
description: "Steel Supply Co: We offer Weld Through Primers in both Red Oxide and Gray Shop Coat. Request a free quote!"
---

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[Steel Supply Co Home](https://www.thesteelsupplyco.com/) > [Steel Products](https://www.thesteelsupplyco.com/steel-products) > [Primers, Coatings and Cold Galvanize](https://www.thesteelsupplyco.com/industrial-coatings/primers-coatings-and-cold-galvanize) > Weld Through Primers

# Weld Through Primers ![Steel Supply Co. offers Weld Through Primers in Red Oxide and Gray Shop Coat.](https://www.thesteelsupplyco.com/hs-fs/hubfs/K00020101%20Red%20Weld%20Thru%20Primer.jpg?width=200&name=K00020101%20Red%20Weld%20Thru%20Primer.jpg "Weld Through Primers")

The Steel Supply Company offers Weld Through Primers in both Red Oxide and Gray Shop Coat. These rust inhibitive coating primers are competitively priced and are delivered freight free anywhere in the United States (with a minimum order of 80 gallons)

The main difference between Standard Shop Coats and Weld Through Shop Coats is the ability to afford some rust protection after welding. A standard shop coat, when welded will burn away completely. Weld Through primers have an added zinc component. During welding the primer components all burn away except the zinc. This infuses back into the weld and provides some protection from rust.

Krylon Weld Through primers have the added advantage of having one of the lowest VOC contents for alkyd based steel coatings available, with stated levels below 250 grams per liter.

## Weld Through Primers - Recommended surface preparation is SSPC-2. 

| Krylon Item # | Old Pratt & Lambert Item # | VOC Info* | Packaging | Product Date Sheet |
| --- | --- | --- | --- | --- |
| K00020101 | none | Below 250 gm/liter | 5 Gallon Pails | Data Sheet |
|   |   |   | 53 Gallon Drums |   |
| K00020102 | none | Below 250 gm/liter | 5 Gallon Pails | Data Sheet |
|   |   |   | 53 Gallon Drums |   |

*** VOC Info**  
*Many states apply a limit of 340 gm/liter to industrial coatings for VOC (volatile organic compound) compliance.  
Consult your state or local regulations for the limits that apply in your area*

To learn more about our Rust Inhibitive Coating Primers and Weld Through Primers, [contact us or request a free quote today.](https://www.thesteelsupplyco.com/steel-rfq)

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