Class Code 4250
Paper Coating/Laminating; Computer Printing/Typewriter Ribbon Mfg/Refurbishing
Class Code 4250 applies to businesses that coat, laminate or finish paper products and to manufacturers/refurbishers of computer printing and typewriter ribbons. These operations typically involve web-handling equipment, coating and curing processes, adhesives and solvents. The California pure premium rate for this class is $4.764 per $100 of payroll.
What Class Code 4250 Covers
This classification covers production operations that apply coatings, adhesives or protective films to paper, paperboard or similar substrates and the lamination of films or foils to paper products. It includes continuous web coating lines, roll-to-roll laminators, drying/curing ovens, slitting and rewinding operations, and associated finishing such as calendaring or surface treatments. The class also covers manufacturing and refurbishing of computer printer and typewriter ribbons where ink application, re-inking, cleaning, and spooling occur. Tasks such as machine setup, web threading, roll changes, solvent handling, and in-line quality control are included; routine clerical or purely administrative office work at the same facility is normally classified separately.
Who It Applies To
- Paper coating and converting plants that apply aqueous, solvent or UV coatings
- Lamination and film-converting shops that bond films/foils to paper or labels
- Manufacturers that produce printer or typewriter ribbons and facilities that refurbish/re-ink ribbons
- Machine operators and web handlers who run coaters, laminators, slitters and rewinders
- Maintenance and repair technicians who service coating and laminating equipment
- Material handlers who load/unload heavy rolls and manage inventory
Common Job Duties
- Operating coaters and laminators: setting speeds, temperatures, pressures and coating weights
- Web threading, roll changes and splicing of large paper rolls
- Slitting, trimming and rewinding finished rolls to customer specifications
- Mixing, transferring and applying adhesives, solvents and coating formulations
- Cleaning rollers, screens and applicators; solvent cleaning and disposal
- Routine maintenance, troubleshooting and lockout/tagout of production machinery
- Re-inking, cleaning and spooling of printer/typewriter ribbons during manufacture or refurbishment
Common Injury Risks
Understanding the $4.764 Rate
The September 1, 2026 approved pure premium of $4.764 per $100 of payroll represents the portion of premium that covers expected claim costs for this class. Insurers use the pure premium as the base and then add expense loads, apply experience modification factors, schedule credits or debits, and any deductibles to determine the final premium an employer pays. Final cost is influenced by a company’s payroll mix, safety record (E-Mod), state assessments, policy limits and any loss-control measures implemented.
Cal/OSHA Compliance Requirements
Cal/OSHA General Industry standards apply to coating and laminating operations, including machine guarding for nip points, lockout/tagout for maintenance, hazard communication and SDS management for inks and solvents, respiratory protection and ventilation for VOCs, and heat illness prevention where ovens or heated rollers are used. Employers must also provide training, PPE and written procedures for chemical handling, confined-space entry if tanks are present, and noise controls where occupational exposure limits are exceeded.
How Key HR Helps Employers Under Class Code 4250
A PEO like Key HR helps employers in this class with accurate payroll classification, streamlined workers' comp reporting, and aggressive claims management to control losses that drive premium. Key HR can implement industry-specific safety programs—machine-guarding audits, solvent handling SOPs, roll-lifting ergonomics and return-to-work plans—helping lower experience modification factors and overall workers' comp costs across California operations.
Get a QuoteFrequently Asked Questions
Do clerical or office staff at a coating plant fall under Class Code 4250?
No. Administrative, clerical and sales employees are typically coded to clerical classifications. Class Code 4250 applies to production and maintenance employees directly involved with coating, laminating and ribbon manufacturing.
What practical steps reduce workers' comp exposure for this class?
Implement machine guarding and nip-point protection, lockout/tagout for maintenance, local exhaust ventilation for solvents, safe solvent handling and PPE, ergonomic roll-handling aids, and a formal return-to-work program to shorten claim durations.
How does ribbon refurbishing differ from full manufacturing for classification?
Refurbishing that involves re-inking, cleaning and spooling of existing ribbons is included in this class; the distinction is operational, not semantic. Both new manufacture and refurbishment are covered when the work includes the same production machinery and chemical handling.
Quick Facts
- Class Code
- 4250
- Classification
- Paper Coating/Laminating; Computer Printing/Typewriter Ribbon Mfg/Refurbishing
- Pure Premium Rate
- $4.764 / $100 payroll
- Effective Date
- September 1, 2026
- Source
- WCIRB Approved Filing
Manage Workers' Comp Through a PEO
Key HR provides pay-as-you-go workers' comp for California employers — no large deposits, no audits, better rates.
Get a Quoteor call (800) 922-4133Ready to Simplify Workers' Comp for Class Code 4250?
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