Professional Grade Cleanroom Paper – ISO Class 5 Compatible
Keep your data and your environment pristine. Our Cleanroom Paper is engineered for high-performance writing, printing, and photocopying within controlled environments. Designed to eliminate the risk of particle shedding and chemical outgassing, it ensures your critical documentation never compromises your standards.
- Ultra-Low Particle Generation: Specialized coating minimizes lint and fiber release (Only 20 counts/ft³ during flexing).
- ESD Safe: With a surface resistivity of 5.5 × 1010 Ω/sq. , it prevents static buildup around sensitive electronics.
- Ready for Immediate Use: Processed and double-bagged in an ISO Class 5 cleanroom.
- Durable & Versatile: High tear strength and 85% opacity make it perfect for two-sided printing and long-term record keeping.
Physical Properties & Performance
| Property | Typical Value | Test Method |
| Basic Weight | 76.7 gm2 +/- 4% | – |
| Width | 5 mils, .127mm | Caliper |
| Surface Resistivity | 5.5 x 1010 Ohms Square | EOS/ESD S11.11-1993 |
| Tear Strength (MD) | ≥ 300 mN | Elmendorf Tear Test |
| Tear Strength (CD) | ≥ 400 mN | Elmendorf Tear Test |
| Opacity | ≥ 85% | – |
Our Cleanroom Paper is treated with a specialized polymer formula that bonds fibers to the sheet, significantly reducing surface particles. Despite its cleanroom-grade engineering, it maintains the look, feel, and “writability” of high-quality bond paper, making it compatible with standard pens, inkjet printers, and high-speed copiers.
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Tear Strength: High tensile strength ≥ 300 mN ensures the paper does not shred or snag during high-speed printing or heavy manual handling.
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Opacity: An 85% opacity rating allows for clear, double-sided printing without “show-through,” reducing paper waste in the cleanroom.
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Surface Resistivity: With a rating of 5.5 x 1010 Ohms Square, this paper is safe for use in ESD-sensitive environments, preventing the buildup of static charges that can attract contaminants or damage electronics.
Contamination Control (Test Results)
| Particle Generation Test | Measured Value |
| Flexing Test ( ≥ 0.5 um ) | 20 Counts / Cubic Feet / Sheet |
| At Rest ( ≥ 0.5 um ) | 3 Counts / Cubic Feet / Sheet |
| Talc Check (by SEM-EDX) | < 5 Particles |
To ensure the integrity of ISO Class 5 (Class 100) environments, our paper undergoes rigorous “Flex” testing to simulate real-world use. Unlike standard office paper, which releases thousands of particles when handled, our cleanroom-certified sheets generate as few as 20 counts per cubic foot even under mechanical stress.
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Ultra-Low Outgassing: Formulated without organic fillers or coatings that could lead to chemical outgassing.
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Talc-Free: Verified by SEM-EDX testing to contain fewer than 5 particles of talc, ensuring no mineral contamination of sensitive equipment.
Environmental & Compatibility Notes
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Sterilization: Compatible with Gamma, ETO, and Autoclave sterilization processes for use in sterile life science environments.
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Packaging: Every ream is processed and double-bagged in an ISO Class 5 cleanroom to ensure it remains pristine from our facility to your critical point of use.
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Standard Sizes: Available in 8.5″ x 11″ dimensions in White, Blue, Pink, and Yellow to support color-coded documentation workflows.
