£55.25£245.30 +vat @ 20%

Free Delivery

On orders over £90.00+VAT, up to 20Kg.

Delivery Details

Free Shipping UK mainland (Most Destinations)

Free Standard Shipping (not next day) on orders worth £90 +vat or more, which also weigh 20kg or less to non-remote, UK mainland locations.
Free shipping is shown at checkout on valid orders

Rustbuster intend to ship all orders within 24 hour via economy carriage shipping, this can be next day but could be up to 2 days.

Next day delivery DOES NOT include Saturday or Sunday. Any next day orders placed on a Friday will be received on Monday, as Saturday is not included as a working day.

Rustbuster Standard Economy shipping is £8.50+vat for up to 20kg.

Remote areas/Scottish Highlands and non-UK Mainland areas may be subject to additional charges and a longer delivery time. This is determined by our couriers not Rustbuster.

Northern Ireland and Ireland
Up to 20kg of Hazardous goods can be sent, this currently costs £25.00+vat, we do however have a Stockist in Ireland and this may workout a more cost effective way to purchase.

International shipping
International shipping prices vary, please contact Rustbuster if your country is not listed at Checkout.

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Product Details


Rustbuster’s Zinc Rich Epoxy-Anode Primer offers the very best in cathodic and barrier protection to steel blast cleaned or power tool cleaned to St3 standard (read our article on surface preparation standards here). Once applied, it forms part of a paint system with our EM121 or Custom 421 epoxy paints or other high-performance coatings.

Epoxy-Anode is a self-repairing primer containing 93% zinc solids bound into an epoxy resin. If a scratch goes through the topcoat and primer back to bare metal, the zinc in the primer will react with the steel. This reaction will form zinc salts that will heal the scratch and maintain the barrier to prevent rusting. This is known as cathodic protection; an established way to control corrosion.

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Click on Rusty to read our blog on ‘Why do we use zinc in our primers?’.

Product description 2 pack isocyanate-free epoxy zinc-rich primer.
Pack description A 1.25 ltr pack includes 800ml of base, 200ml of hardener and 250 ml of thinner.

A 6 ltr pack includes 4 ltr of base, 1 ltr of hardener and 1 ltr of thinner.

Mix ratio Mix 4 parts component A (zinc) to 1 part component B (hardener) by volume.
Coverage Can be applied to steel as low as 5c. The steel must be at least 3 degrees above the current dew point. (See our dew point calculator.)
Thinning Use only the epoxy thinner supplied, from 5 to 20% max.
Application Brush or spray on a blast-cleaned surface.
Spraying Minimum 1.8mm nozzle or an HB (high build) primer set up. Test atomisation on a test panel first. Viscosity will vary, i.e. thicker in colder temperatures. Data correct at 20c.
Pot life Pot life is the time from mixing the two components to the point at which the mixed paint is no longer usable. For Zinc Rich Epoxy-Anode, you have 2.5 hours of pot life once mixed at 20c – longer at colder temperatures.
Shelf life We recommend storing upside down in a dry place at around 20c. In these conditions, the product has a shelf life of 12 months.

Do not store below 20c as this can affect performance.

Disposal Allow the mix to cure in your mixing cup and throw it away as dry waste.
Cleaning Clean up with standard thinner or gun wash. Do not thin the paint with standard thinner as this will affect the paint cure.
Safety Use in a well-ventilated atmosphere. Use a respirator face mask when spraying or brushing in an enclosed space. Please see the MSDS (material safety data sheet) in our data sheet area.

Wear suitable protective clothing, gloves and eye protection.

Rusty's Top Tips from Rustbuster

Hello Corrosioneers!

RUSTY here, for handy tips and guides on how to get the best from our Rust busting products, check out my helpful guides at Rusty’s Tops Tips

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