New roller coating cuts downtime
UK, September 15, 2009
UK-based United Biscuits (UB) has recently specified a new coating to significantly reduce the downtime required for the re-coating of a compression roller and a doctor blade that are both deployed in its cake manufacturing facility.
The compression roller is used for pressing biscuit crumbs, a somewhat abrasive and sticky food compound. The doctor blade scrapes the excess compound off the roller. Traditionally, both the roller and the blade were coated with a stainless steel reinforced fluoropolymer based coating.
The new coating, Vicote F810Blk is part of a relatively new range of coatings from Victrex Polymer Solutions, a division of Victrex, and is based upon Victrex Peek polymer.
Working closely with plant engineers at UB, the coater, Metalcraft Plastic Coatings, a technical services provider to major bakeries, saw the potential for Vicote Coatings to enhance the longevity of the roller and blade.
Today UB is using FDA compliant Vicote F810Blk to coat the doctor blade and roller and benefiting from enhanced wear resistance combined with good release properties.
“The roller, which is 1200 mm long and 355 mm in diameter, and the doctor blade were both coated with Vicote F810Blk on the approval of UB engineers and the results achieved were impressive,” said Gary Hull, managing director of Metalcraft.
“The previous coating was problematic and in line with new product developments an improved surface was required. When Vicote F810Blk was applied a re-coat was not required for six months,” he added.
“Further, the roller and doctor blade were recently re-coated by Metalcraft during a bank holiday weekend in order to further reduce the effect of the down time. This increased lifecycle and level of service has led to UB engineers to consider adopting Vicote Coatings for other applications.”
The Vicote coatings range of products consists of more than 30 different grades ranging from electrostatic powder grades to the aqueous based dispersion grades, many of which are enhanced by the addition of other additives in order to improve their wear resistance and release properties.
A key benefit of Vicote F810Blk coating in this application was that it is aqueous based and contains very low levels of solvents which is important for coaters looking to reduce VOC emissions, said a statement.
Andrew Storm, Victrex Polymer Solutions sales director, said: “The unique value of Victrex’s materials solutions lies in our ability to tailor high performance Victrex Peek-based polymers for customers’ best advantage.” – TradeArabia News Service