Bunting unveils new flexible die coating

Bunting Magnetics has developed a new coating for its flexible die product line, called Repel, which provides a clear, non-stick finish that is said to repel the most aggressive adhesives.  

‘The Repel coating keeps the die very flexible and prevents adhesive or label material from embedding in the cavities of a die, said Mike Wilks, general manager of the company’s flexible die division. ‘It won’t flake off like other coatings do, giving our customers less downtime and better dies cuts.’ 

Repel offers a strong silicone-based layer of protection for many different applications. Many tag and label manufacturers will use different types of foam in the production line to keep material from sticking in the cavity of the flexible dies they are using. The Repel coating reduces the need to use foam in some applications and helps manufacturers create a cleaner production environment and reduce their total cost. It is also suitable for cold foil applications, reducing the likelihood that thin foil material will stick in the base of a die. The silicone base of the coating enhances foil release, from the tight fit typical of these applications. 

Bunting’s range of coatings includes Diamond and Black Diamond, which increase the hardness of its flexible dies to a level not measured by the Rockwell Scale for Hardness.  

‘These coatings allow our flexible dies to run four times longer than ordinary dies,’ continued Wilks. ‘The Diamond and Black Diamond coating process makes our dies highly resistant to cracking and chipping which helps quadruple the life of the die. Combined now with the Repel coating, it allows Bunting to offer our customers the best combination of magnetic printing cylinders and flexible dies available.’

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