New Guard Coatings

Guard T-Wash

Guard T-Wash

Guard T-Wash mordant solution, also known as Etch, is designed for treating galvanised steel before painting.

  • Pack Size: 5 litres
  • Colour: Blue, turning black once applied

Guard T-Wash

Guard T-Wash is a single-component mordant solution made up of phosphoric acid and copper salts.

Pack Size: 5 litres

Colour: Blue, turning black once applied

Gloss Level: N/A

Recommended Uses

Guard T-Wash is designed for treating galvanised steel before painting. The solution quickly turns the substrate black, providing visible evidence that the surface is ready to be painted. Also known as etch.



Application is either by conventional spray or by clean rag / cloth (ensure correct P.P.E is used at all times – contact us for advice).

Thoroughly wet the surface which should turn black in approximately 5 minutes. When black colouration appears stable this should be washed down with clean water. Should this colouration wash off during this process, the application will need repeating.

For further information and guidance on application, please refer to the Data Sheet or contact us.


Drying and Curing Time

Should turn black in approximately 5 minutes.



Can be over coated with majority of coatings, both single pack and two component. Guard HBV and Guard MSP-2K are recommended products.


Surface Preparation

Ensure surfaces are clean, dry and free from grease and contamination.



Thoroughly wash down surface with clean water prior to application, and allow to fully dry. If spray applying, ensure lines are fully flushed through with suitable cleaning solvent prior to re-using the gun with coatings.


Safety Precautions

To avoid the risk of spillage always store and transport in an upright secure position. Materials are hazardous and can also be flammable therefore appropriate precautionary measures must be taken including the use of gloves, glasses and recommended P.P.E in accordance with the material safety data sheets (MSDS).

Please refer to the product Data Sheet and Material Safety Data Sheets for full details regarding the safe use and storage of this product. We also offer free technical advice – click here to contact us.


Contact Us

For further advice regarding the use of this product, technical support or a quotation please contact us.

Click here to download datasheet


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