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California WCIRB Class Code

Class Code 4410
Rubber Goods Mfg

Class Code 4410 covers manufacturing operations that produce molded, extruded, calendared, or fabricated rubber goods. In California this work has a September 1, 2026 approved pure premium of $5.748 per $100 of payroll, a key factor in workers' comp costs for employers making hoses, gaskets, belts, boots and similar rubber products.

Sept 1, 2026 Pure Premium Rate
$5.748
per $100 of payroll
Moderate Risk
Source: WCIRB Approved Filing
Effective: September 1, 2026
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What Class Code 4410 Covers

This classification applies to plants that compound and process natural or synthetic rubber into finished goods. Typical operations include raw rubber compounding and mixing, extrusion, calendering, compression/transfer/injection molding, vulcanizing/curing ovens and autoclaves, trimming and flash removal, secondary assembly, testing and packaging. It covers on-floor machine operators, compounders and mixers, press and mold operators, maintenance mechanics who service heated presses and extruders, quality control technicians, material handlers and forklift operators in rubber goods shops. The code is specific to general rubber goods manufacturing rather than specialized industries (for example large-scale tire plants or raw rubber reclaiming operations may be classified differently).

Who It Applies To

  • Small- and mid-size manufacturers of molded rubber products (gaskets, seals, hoses, o-rings)
  • Plants producing extruded rubber items such as belts, tubing, and profiles
  • Companies that calender rubber sheets or laminates for industrial use
  • Press operators, molders and vulcanizing technicians
  • Maintenance mechanics who service heated rubber-processing equipment
  • Quality control technicians performing physical and chemical testing of rubber goods

Common Job Duties

  • Measuring and mixing rubber compounds and additives in mixers or mills
  • Feeding extruders and calenders and monitoring process parameters
  • Loading molds, operating compression/transfer/injection presses and timing cures
  • Operating vulcanizing ovens or autoclaves and handling hot cured parts
  • Trimming flash, finishing molded parts, assembly and packaging
  • Performing preventive maintenance, die changes and machine cleaning
  • Conducting QC tests: dimensional checks, hardness, tensile/elongation tests

Common Injury Risks

Crush, amputation and entanglement hazards around rollers, calenders and presses
Thermal burns from hot molds, ovens, autoclaves and steam systems
Chemical exposures and skin irritation from accelerators, sulfur, solvents and release agents
Respiratory hazards from dusts, fume/vapor from solvents and heated rubber emissions
Noise-induced hearing loss from presses, extruders and other heavy equipment
Musculoskeletal disorders from repetitive trimming, lifting cured parts and awkward postures

Understanding the $5.748 Rate

The approved pure premium of $5.748 per $100 of payroll represents the estimated cost of future losses (medical and indemnity) for this class per unit of payroll. Insurers use this pure premium as the loss-cost base, then apply carrier expense factors, experience modification, policy endorsements, state assessments and any deductible or retrospective rating plan to determine the final premium an employer pays. Payroll accuracy, proper classification, claims history and safety programs all materially affect the ultimate premium.

Cal/OSHA Compliance Requirements

Cal/OSHA requirements that commonly apply include maintaining a written Injury and Illness Prevention Program (IIPP), Hazard Communication with Safety Data Sheets and labeling for rubber compounding chemicals, machine guarding and Control of Hazardous Energy (lockout/tagout) for presses and rollers, respiratory protection when exposure to fumes or solvents exceeds limits, and hearing conservation for high-noise areas. Employers should also follow heat illness prevention when workers operate near hot presses or autoclaves and perform exposure monitoring and medical surveillance where required.

How Key HR Helps Employers Under Class Code 4410

A PEO like Key HR can help manufacturers in Class Code 4410 lower workers' comp costs through accurate classification and payroll reporting, proactive loss-control programs tailored to rubber processes (lockout, chemical handling, PPE and ergonomic controls), fast and centralized claims management, and return-to-work programs that reduce indemnity costs. Key HR also provides safety training, OSHA recordkeeping, and access to pooled buying power on policies and risk financing options that smaller plants often cannot negotiate on their own.

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Frequently Asked Questions

Does Class Code 4410 include tire manufacturing or retreading?

No. Class Code 4410 covers general rubber goods manufacturing such as molded or extruded products, calendering and vulcanizing in smaller rubber goods plants. Tire manufacturing and retreading are more specialized operations and are usually classified separately due to different equipment, process scale and risk profiles.

How do chemical compounds and solvents affect my workers' comp risk?

Use of accelerators, sulfur compounds, solvents and release agents increases risks for skin dermatitis, inhalation exposures and fire hazards. These exposures can raise claim frequency and severity if controls are inadequate; implementing ventilation, PPE, SDS management and substitution where feasible will reduce both injury risk and premium impact.

What practical steps lower my insurance costs for rubber goods manufacturing?

Keep job classifications and payroll accurate, invest in machine guarding and lockout/tagout, establish a formal IIPP and return-to-work program, conduct regular preventive maintenance and safety training, and promptly report and manage claims. Partnering with a PEO provides centralized claims handling, safety consulting and purchasing leverage that together can reduce overall workers' comp expense.

Quick Facts

Class Code
4410
Classification
Rubber Goods Mfg
Pure Premium Rate
$5.748 / $100 payroll
Effective Date
September 1, 2026
Source
WCIRB Approved Filing

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