£8.50£41.50 +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.

Need Assistance?

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

Customer Feedback

We’d really appreciate it if you could answer three survey questions to help us improve our customers’ online buying experience and marketing.

Your Name *
Fill out this field
Email Address *
Fill out this field
Recent Order Number or Product Purchased
Fill out this field
Did you find our website easy to use? *
Fill out this field
Can you suggest any improvements, or products we could add ? *
Fill out this field
Where did you hear about Rustbuster and our products? *
Fill out this field
Any other comments, even constructive criticism, are most welcome *
Fill out this field
21 - 4 = ?
Enter the equation result to proceed

Share This Product

Product Details

Rustbuster T-Wash Mordant Solution for the Treatment of New Galvanised Surfaces Before Painting


Newly galvanised surfaces are coated in a greasy film and surface contaminants that affect the adhesion of coatings. (Unlike weathered galvanised surfaces with approx. two years or more of weathering.) Failure to prepare new galvanised surfaces correctly is likely to lead to the failure of the chosen paint system.

Rustbuster T-Wash is a pre-paint preparation mordant solution used to neutralize hydroxides and carbonates on the galvanised surface. This promotes significantly better adherence of paint to the surface of the galvanised surface.

The recommended process to achieve the best results is as follows:

  • Clean and degrease the surface using Rustbuster SP10 Tank-Kleen.
  • Rinse with fresh water.
  • When dry, apply Rustbuster T-Wash by brush.
  • After some time, the solution will turn the surface black or dark grey, indicating that the proper reaction has taken place.
  • Rinse with fresh water and allow to dry before painting, for example, Rustbuster EM121 epoxy mastic primer/finish or Custom 421 epoxy primer.

Any areas that do not turn black should be re-cleaned with Rustbuster SP10 and re-treated with T-Wash.


Read our blog on why T-Wash is necessary by clicking here

Product description A blue liquid used for the pre-paint treatment of new galvanised metal.
Directions for use The galvanised surface should be cleaned and degreased before application of T-Wash. Apply evenly by brush and allow time to react giving a black or dark grey appearance to the surface. After the reaction has taken place the surface should be rinsed with water and allowed to dry before priming.
Cleaning Brushes and equipment used can be washed clean in fresh water.
Coverage Approximately 8-10 square metres p/ltr.
Safety 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

Related Products