

International Interprime 160 is a phosphoric acid based mordant solution for treating galvanised steel. International Interprime 160 is 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.
International Interprime 160 is a phosphoric acid based mordant solution for treating galvanised steel. International Interprime 160 is 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.
International Interprime 160 is only recommended for etching galvanised surfaces. It is not suitable for the pretreatment of other non-ferrous metals such as aluminium.
This product contains phosphoric acid. Before commencing application reference should be made to the material safety data sheet (MSDS), and the appropriate personal protective equipment should be worn, e.g. gloves, goggles, face-mask etc.
Apply to a suitably prepared, clean galvanised surface and then allow to dry. The mordant solution will gradually react and the blue colour will change with the surface blackening. This should finally achieve a uniform dark grey colour. If this does not occur due to the presence of oils, grease, flux or passivation of the surface then this area will require abrasion and a second coat of Interprime 160.
Over-application will produce a dense black powdery layer which is not suitable for the application of subsequent topcoats. This will require either abrading or washing with fresh water to remove excess acid or powdery deposits, otherwise blistering and/or adhesion loss of topcoats can occur.
Thinning is not normally required. However, if application trials result in a dense black powdery surface, then Interprime 160 should be diluted with clean, potable water and further application trials undertaken.
It should be noted that in all circumstances galvanised steelwork is likely to require a similar coating thickness for adequate protection as might be needed on steel substrates. Application of thin films can result in penetration of this paint film by zinc salts in wet corrosive environments.
International Interprime 160 has the following specification approvals:
International Interprime 160 was originally formulated to meet the requirements of British Rail's "T-Wash" solution.
Please contact Rawlins Paints' Technical Support Team on 0113 2455450 for more information.
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
• These colour samples are to be used for guidance only.
• Product contained within is generic to provide a close representation to your chosen colour.
• Should not be used to carry out any painting project, this is for colour selection purposes only and does not remove the need for you to ensure the correct product is chosen and tested for your application once a colour has been decided on.
• It is not a sample of the product you intend to purchase/use and cannot be used to test anything other than colour appearance.
• Notwithstanding any other provision of our conditions of sale, you agree and understand that many factors affect the colour of a painted product, including lighting, sheen level, method of application, batches variances number of coats and substrate surface.
• We cannot therefore promise that the colour of the product you ultimately purchase will exactly match the colour of this colour sample.
• Once you have selected a colour, you must purchase the smallest amount of the product you intend to use in your chosen colour and apply to a small, inconspicuous test area to be sure that it meets your expectations.
• Leave the product for 24 hours and then only buy more paint and/or apply more paint if you are completely happy with the results on the test area.
• We cannot be liable to you for any loss or damage if you have not complied with this process.
• Notwithstanding any other provision of our conditions of sale, you agree and understand that many factors affect the colour of a painted product, including lighting, sheen level, method of application and product surface.
• We cannot therefore promise that the colour of the product you paint with the Kolorbond paint will exactly match the colour of the item you send to us.
• You must therefore purchase the smallest Kolorbond paint pot available first and then apply the paint to a small, and where possible hidden, test area of your product to be sure that it meets your expectations.
• Leave the product for 24 hours and then only buy more paint and/or apply more paint to your product if you are completely happy with the results on the test area.
• We cannot be liable to you for any loss or damage if you have not complied with this process.