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.
Can’t find the right specifications?
If you require custom colors, perforated sheets, or specialized Cleanroom Supplies not listed here, let us do the legwork for you. Contact our specialists today for a tailored quote on bulk orders or custom configurations.
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