International Interprime 160 Mordant Solution

UN1263 (Class: 3, Pk Grp: III)
A phosphoric acid based mordant solution for treating galvanised steel. Highways Approved No. 155.
Available in 10 Litres in Blue
£118.08 £98.40
In stock
Product Description

International Interprime 160 is a phosphoric acid based mordant solution for treating galvanised steel.

Best Uses

For the chemical pretreatment of galvanised steel prior to the application of protective coating systems, in order to ensure good adhesion where blasting or abrasion is not possible.


All surfaces to be coated should be clean, dry and free from contamination. Prior to paint application all surfaces should be assessed and treated in accordance with ISO 8504:2000. Oil or grease should be removed in accordance with SSPC-SP1 solvent cleaning.

Galvanised Steel
Galvanised surfaces can be very variable. The preferred method of treatment for subsequent application of protective coatings systems is to sweep blast in order to provide a "physical key" to the substrate following degreasing and cleaning as described above. Alternatively, the substrate should be abraded to remove areas of passivated zinc products. The surface should be washed to remove any traces of soluble zinc salts and allowed to dry before application of Interprime 160.

Technical Details


  • Highways Agency Registered Approved - Item No. 155


Coatings systems. However, care should be taken with regard to the dimensions of the galvanised steel. Thin flexible substrates, for example, may not be suitable for overcoating with thick high performance systems as in many cases these have limited flexibility.

Suitable topcoats are:

For other suitable topcoats, please call our Technical Team.

Technical Info

Components: Single Pack
Type: Etch Solution
Finish: -
Stock Colours: Pale Blue
Tintable: No
VOC Content: 2.75 lb/gal (330 g/lt)
Volume Solids: Not applicable
Suitable Substrates: Galvanised Steel
Application Method: Brush
Practical Coverage: Aim to apply at a rate of 20 m²/litre
Wet Film Thickness (WFT): -
Dry Film Thickness (DFT): -
Induction Time: -
Pot Life: -
Touch Dry: Not applicable
Overcoatable: After minimum 2 hours at 15°C
Hard Dry: Not applicable
Cleaner / Thinner: Clean water
Shelf Life: 12 months minimum at 25°C (77°F). Subject to re-inspection thereafter. Store in dry, shaded conditions away from sources of heat and ignition.
Packaging: Available in 10 Litres

The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.

Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.

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