Stowlin Croftshaw
Cleaner , and greener !
Project Outline – The Issue Clean - BONDERITE C-NE 90200
Stowlin were recently invited to review the pre- treatment process of an established casting company in the Midlands . The customer was utilising a 5-stage immersion chemical pre-treatment process and found that their chosen chemistry was attacking the heater elements , causing them to fail . Numerous heaters of different metallurgy were tried , but the problem persisted . The lack of temperature meant that the baths were failing to achieve the correct processing parameters , meaning that the paint failed to adhere correctly to the substrate .
Project Objective – Change Process
The objective was to allow correct pre- treatment of the castings without costly plant modifications whilst also providing a green and safe alternative . The chemistry employed at the time of the heater failure was a highly concentrated sulphuric acid , followed by two water rinse tanks , and a chromate conversion coating . A final water rinse followed before component drying and powder coating . This was very aggressive and posed health and safety risks to operators .
Project Solution - Clean and Green
To meet the customers exact requirements , Stowlin specified Henkels New Generation Technology pre-treatment chemicals .
BONDERITE C-NE 90200 is a neutral cleaner with key benefits that include :
• Operates at a lower temperature enhancing efforts to achieve reduce costly energy bills .
• Operates at almost pH neutral
• Operates at low concentration in the tanks
• Creates less sludge
• Requires less waste disposal and less plant downtime
Green - BONDERITE M-NT 41040
BONDERITE M-NT 41040 was specified as the conversion coating which reduced operating costs for the customer . With the system fully capable of operating at ambient temperatures , the benefits extend to sustainability and a reduction in their heating bills . This one element alone has proven very popular for customers as we are all being asked to reduce our emissions , with the UK targeting a 78 % reduction by 2035 .
Stow-flocc
With the new cleaner and greener pre-treatment system in operation , the customer also wanted to move away from costly effluent disposal , which they previously had to cater for with the chromate system that was utilised . Stowlin ’ s Technical team looked at the application and suggested the versatile 2-3 stage Stow-flocc effluent treatment system . This provided the process and customer with a fully compliant discharge to drain , eliminating most of their disposal costs .
For more information , please contact the Stowlin sales team on 0116 278 5373 .
www . stowlin . com | info @ stowlin . com 0116 278 5373