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Weldmark CR-39 Replacement Clear Lens Cover — protective outer cover lens for welding helmets and filter assemblies. Model: 28008 Manufacturer: Weldmark (distributed by Independent Welding Supply) Country of Manufacture: China Type: Replacement protective cover lens Material: CR-39 optical-grade polymer (allyl diglycol carbonate) Lens Type: Clear, non-tinted Dimensions: 2" × 4-1/4" (51 mm × 108 mm) Thickness: ~1.8 mm (standard fit for welding filter holders) Optical Properties: High optical clarity, low distortion, UV-absorbing Impact Resistance: Meets or exceeds ANSI Z87.1 high-impact standards Thermal Resistance: Up to 130 °C continuous exposure without warping Scratch Resistance: Enhanced surface hardness (hard-coated finish) Weight: Approx. 5 g per lens Compatibility: Fits standard welding helmets and filter lens assemblies using 2" × 4-1/4" windows (e.g., Jackson, Fibre-Metal, Huntsman, Miller) Function: Protects the primary shaded welding filter lens from spatter, pitting, and scratching Applications: All welding processes using fixed or auto-darkening filter lenses Maintenance: Replace when visibly scratched, heat-deformed, or contaminated with spatter Packaging: Individually sleeved or 10-pack sets for shop use Certifications: ANSI Z87.1, CSA Z94.3 optical and impact compliant This CR-39 lens is ideal for use as a front or inside cover plate, extending the service life of more expensive shaded welding filters while maintaining clear optical performance. Please review pictures carefully and let us know if you have any questions!
Condition: New – Open box
Weight: 0.90
Depth: 4.00
Length: 6.00
Width: 4.00
SKU: 11404 4.S10.5.3D
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