Press and calender roller coatings
See also: Textiles, Leather and Nonwovens · Pulp and Paper · Mobility
What it is
Complements Application B-64 (Roller coatings in paper plants), focusing on other industries with press and calendering operations: textile industry (fabric finishing calenders, textile printing rollers), plastics industry (film and sheet extrusion calenders, lamination rollers), metalworking industry (stamping presses with specific coating), rubber industry (sheet production calenders), food industry (food presses). Each application has specific requirements of hardness, chemical resistance, temperature and surface finish. Polyether PU is chosen in humid environments and aqueous processes; polyester in processes with oils and specific chemicals; PPDI systems are premium for severe dynamic applications. Rollers have periodic re-coating cycle — when the PU wears out, rollers are sent for grinding and re-coating, generating a recurring services market.
Why it matters
For manufacturing industry and chemical processes, roller coatings in presses and calenders is a decision where continuous-operation failure cost is high. Unplanned downtime on automated lines costs thousands per hour; critical equipment failure in chemical plants can stop entire operations with direct supply contract impact.
Current drivers. Industry 4.0 and growing automation increase criticality of specific components — one seal failing in a robotized hydraulic press stops the entire shift. Reshoring and industrial expansion in emerging markets (including Brazil with New Industry Brazil program) create new demand. Industrial sustainability via durability (reducing part replacement) competes with ESG pressure for bio-based materials and recyclability — and modern PU systems offer responses in both directions.
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