Which one?

Flat parts, small items, anything you can dip or soak.
Corrosion Assassin liquid
Vertical, overhead, or fixed in place where liquid runs off.
Corrosion Assassin Paint-On
The cost

What are you doing now — sanding it, or sandblasting it?

A gate, a garage door, a window frame, a panel. Sanding costs you hours. Sandblasting costs you a contractor, a mess, and the part off site. Paint-On goes on with a brush, stays there, and the rust comes off with the gel.

What it costs to do a square metre

Sanding and sandblasting are both priced per square metre. So is this — as soon as the coverage test is done.

Coverage  square metres per litre
Cost per square metre, 1LR  
Cost per square metre, 5LR  
Cost per square metre, 25LR  

These are blank on purpose. The figure comes from Gary’s own coverage test and nothing else — not an estimate, not a rounded guess, and nothing carried across from the liquid. The moment the test lands, this block fills in.

How to use it

Brush it on. Keep it wet. Wipe it off.

  1. Brush off the loose rust.
  2. Paint the gel on.
  3. Keep it wet. That is the one rule. How long it needs depends on conditions.
  4. Wipe the gel off. The undissolved rust comes off with it. Paint over if you are painting.
Where it works

Mild steel. Tool steel. Cast iron.

That is the list for this version, and we are not stretching it.

Not claimed on this version

Stainless, aluminium and galvanised are not tested on Paint-On and are not claimed for it, even though the liquid covers them. For those metals, and for anything you can dip or soak, use the liquid.

Pack sizes

Four packs. The 1L is where most people start.

The 5L sits under it with the cost per litre, so you can see for yourself where the sense is.

Small jobs
1L
A gate, a garage door, a window frame. The pack most people start on.
R458.85 incl VAT
R458.85 a litre
Pack
Tub
Use
Gates, frames, panels
Sold to
Hardware, trade, public
Per litre
R458.85
Workshop
5L
The working pack. Five times the gel for three times the price.
R1,378.85 incl VAT
R275.77 a litre
Pack
Tub
Use
Workshop, industrial
Sold to
Hardware, trade, industry
Per litre
R275.77
Case of four
4 x 5L
Four 5L tubs. Trade pack.
R4,943.85 incl VAT
R247.19 a litre
Pack
4 x 5L case
Use
Trade
Sold to
Trade
Per litre
R247.19
Industrial
25L
Industrial pack. Not sold into hardware.
R5,403.85 incl VAT
R216.15 a litre
Pack
Drum
Use
Industrial only
Sold to
Industry
Per litre
R216.15

Order request — we invoice you, and dispatch once payment clears. The 25L is an industrial pack and is not sold into hardware.

Send your order request

It reaches Gary within a minute. We invoice you, and dispatch once payment clears. No account, no card, no cart.

Reply within one working day. Or phone +27 73 267 1150.

Before you buy

The questions people actually ask.

Is it a rust converter?

No. It removes the rust rather than converting it into a black film you then paint over.

Will it strip the paint that is already on there?

No. It does not strip existing paint.

Can I paint over it afterwards?

Yes, directly.

How long do I leave it on?

Until the rust is gone. The one rule is keep it wet — how long that takes depends on conditions.

What metals is it for?

Mild steel, tool steel and cast iron.

What about stainless, aluminium or galvanised?

Not tested on this version, so we do not claim it. Do not use it on those.

How is it different from the liquid?

The liquid is for flat parts and anything you can dip or soak. Paint-On is for vertical, overhead or fixed work where liquid just runs off. Same chemistry, thickened so it stays put.

How much do I need?

The coverage figure is being tested and goes on this page the moment it is settled. We would rather leave it blank than guess at it.

Green Guard Industrial Solutions (Pty) Ltd · Registration 2024/528680/07 · VAT 4880323474 · B-BBEE Level 4 · Edenvale, Johannesburg · Manufactured in South Africa · Nationwide delivery, export to Zambia, the USA and Canada · Cleared funds before dispatch