Rustbuster Armaguard black epoxy coating for metal surfaces

EPOXY MASTIC RUST PROOFING PAINT – MEDIUM GREY – 2025 NEW FORMULA - Image 2

EPOXY MASTIC RUST PROOFING PAINT – MEDIUM GREY – 2025 NEW FORMULA - Image 3

EPOXY MASTIC RUST PROOFING PAINT – MEDIUM GREY – 2025 NEW FORMULA - Image 4

EPOXY MASTIC RUST PROOFING PAINT – MEDIUM GREY – 2025 NEW FORMULA - Image 5

EPOXY MASTIC RUST PROOFING PAINT – MEDIUM GREY – 2025 NEW FORMULA - Image 6

EPOXY MASTIC RUST PROOFING PAINT – MEDIUM GREY – 2025 NEW FORMULA - Image 7

EPOXY MASTIC RUST PROOFING PAINT – MEDIUM GREY – 2025 NEW FORMULA

Price range: £25.50 through £102.50 +vat @ 20%

Select

“SELEMIX 2K ARCYLIC AEROSOL CUSTOM COLOURS” has been added to your basket. View basket

Free Delivery

On orders over £100.00+VAT, up to 20Kg.

Need Assistance?

For more product information or have general question, please contact us.

Call 01775761222

Message Us

Share This Product

Product Details

EPOXY MASTIC RUST PROOFING PAINT – MEDIUM GREY – 2025 NEW FORMULA

Rustbuster’s Armaguard Epoxy Mastic is our award-winning Epoxy paint, ideal for both brushing and spraying. Supplied as a two-component pack, along with thinner. The mix ratio is straightforward: 3:1 by volume, plus thinner.

Kits can be shipped with Thinners, Panel Wipe, Mixing Cups and Stirrer’s or simply the paint on it’s own

Each pack includes mixing instructions and recommended thinner quantities. Although Epoxy Mastic can serve as a primer-finisher without needing an over-coat, it can also be over-painted with single or two-pack products.

This paint is typically thick and requires proper mixing and thinning with the provided thinner. For the best results, follow the instructions carefully. Refer to the links below for additional guidance.

Rusty’s Tips: A practical guide on how to use this product

Painting galvanised steel might take a little more preparation, Read More ClicK Here

Product Reviews

” I purchased some EM121 paint a while ago after reading numerous reviews, REALLY impressed with several factors, coverage, lack of mess, no runs, no brush bristles, how long the mixture was useable for and the quality of the results..”

5 Start Product Review Mr A Pearson – May 2019

Product description

2 pack modified high build epoxy rust proofing paint.

Pack description

1.00ltr 1ltr can filled with 750ml Comp A, 250ml can filled with 250ml Comp B1.25ltr starter pack 1ltr can filled with 750ml Comp A, 250ml can filled with 250ml Comp B & 250ml thinner

1.25ltr starter pack Kit – As above with additional 1ltr Panel Wipe, 3 wooden stirrers and 5 mixing cups

2.00ltr 2x 1ltr can filled with 750ml Comp A, 1x 500ml can filled with 500ml Comp B

2.25ltr chassis pack 2x 1ltr can filled with 750ml Comp A, 1x 500ml can filled with 500ml Comp B & 250ml thinner.

2.25ltr starter pack Kit – As above with additional 1ltr Panel Wipe, 3 wooden stirrers and 5 mixing cups

4.00ltr 1 x 5ltr can filled with 3ltr Comp A, 1 x 1ltr can filled with 1ltr Comp B

5.00ltr 1 x 5ltr can filled with 3ltr Comp A, 1 x 1ltr can filled with 1ltr Comp B & 1ltr thinner.

Application temperature

Can be applied to steel as low as 0c. 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 & recoating

Brush or spray.

A second coat or topcoat can be applied any time after approx. 5 hours* with no need to abrade between coats. If recoating or topcoating once the first coat has fully cured (after approx. 7 days), lightly abrade first with P320 paper.

* At 20 degrees centigrade. Longer interval may be required in colder conditions.

Spraying

Minimum 1.8mm nozzle or a 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.

Conventional Spray (Air) 3-4bar – 44-58psi

Airless Spray 18thou tip, 150bar – 2176psi

Pot life

Pot life is the time from mixing the two components together to the point at which the mixed paint is no longer useable. For EM121, you have 2.5 hours 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 any excess mixed paint to cure in your mixing cup and throw 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.

FAQ’s

How many coats are recommended? We recommend applying two coats. This approach ensures a thicker coating, enhancing protection and reducing the risk of missed spots (holidays).

Can I paint over a rusty surface? Yes, Epoxy Mastic effectively seals rusty surfaces due to its non-porous nature. However, we advise removing all loose material from the surface before applying the paint.

Does Epoxy Mastic come in colours? Yes, we offer 9 standard colours and can provide custom colours for a minimum pack size of 5 litres.

How long should I wait before overcoating? You can apply a second coat or topcoat approximately 5 hours after the first coat. No need to abrade between coats. For recoating or topcoating after the first coat has fully cured (around 7 days), lightly abrade the surface with P320 paper.

Can I paint over Epoxy Mastic with a cellulose topcoat? Yes, Epoxy Mastic accepts most types of topcoats. If uncertain, test a small area first and check for any adverse reactions before performing an adhesion test if necessary.