ISO 7 & 8 Cleanrooms - Mighty Line® Floor Tape Test Results!

Independent testing for ISO 7 & 8 demonstrates encouraging airborne particle results and long-term product durability following installation in a cleanroom environment.

ShieldMark Incorporated, manufacturer of Mighty Line® industrial floor tape and floor-marking products, has achieved an important technical milestone with independent testing demonstrating the suitability of its 50-mil vinyl floor tape for ISO Class 7 and ISO Class 8 cleanroom environments. The evaluation examined airborne particulate emissions, product materials and assembly, and performance following installation in an active cleanroom setting. For architects, engineers, facility designers, environmental health and safety (EHS) professionals, and facility managers, the findings provide valuable information when specifying floor-marking products for facilities where cleanliness, contamination control, and durability are essential considerations.

Cleanrooms are carefully controlled environments designed to limit airborne particulate contamination. Commonly found in pharmaceutical manufacturing, medical device production, electronics manufacturing, biotechnology, laboratories, and other specialized operations, these facilities require careful consideration of the materials and products introduced into the controlled space. Even seemingly minor components, including floor-marking materials, must be evaluated for their potential contribution to airborne particulates and their ability to maintain performance under established cleaning and operating conditions.

Cleanroom classifications are based on airborne particle concentrations. ISO Class 7 and ISO Class 8 environments have defined particle concentration limits, with the ISO 7 Class epresenting a more stringent level of airborne cleanliness than ISO Class 8. Consequently, the selection of materials used within these environments is an important part of an overall contamination-control strategy.

Independent Testing of Mighty Line® Floor Tape

The independent evaluation involved Mighty Line® 50-mil vinyl floor tape in two specific configurations: 2-inch Yellow and 3-inch Blue, both manufactured with rubber adhesive backing. The testing included a review of product materials and assembly, at-rest airborne particle testing, and an assessment of product performance following installation in a cleanroom environment.

Before airborne particle testing, the tape samples were wiped down using isopropyl alcohol (IPA) and allowed to rest for 12 hours inside a Class 1,000 cleanroom environment. This preparation period provided an opportunity to evaluate airborne particulate levels after the samples had been cleaned and allowed to stabilize within the controlled environment.

The subsequent at-rest testing involved laser particle-count determination of airborne particulates. The results recorded zero measurable airborne particles at or above 0.5 microns. This is an encouraging finding when evaluating the potential use of Mighty Line® floor tape in controlled environments where airborne particle contamination must be carefully managed.

For cleanroom designers and engineers, the 0.5-micron measurement is particularly relevant because airborne particle concentrations at this size are among the parameters used in cleanroom classification under ISO 14644-1. Although the ISO 7 & 8 results represent the conditions and test procedures used during the independent evaluation, they provide additional technical information for professionals considering floor-marking materials for controlled environments.

Thirty-Day Cleanroom Installation and Performance Evaluation

Airborne particle testing was only one part of the evaluation. Equally important was determining how the tape would perform after installation on an actual cleanroom floor.

To assess this, Mighty Line® tape samples were installed in a high-traffic area of a cleanroom and monitored over a 30-day period. This portion of the evaluation provided an opportunity to observe the product under actual operating conditions rather than relying exclusively on laboratory-based testing.

Following the 30-day monitoring period, the installed samples showed no observable product degradation.

This finding is significant when considering the demands placed on floor-marking materials in controlled environments. Floor tape must remain securely installed and maintain its physical integrity while exposed to routine pedestrian traffic, cleaning activities, and the everyday operational demands of the facility. Deteriorating edges, lifting material, or damaged surfaces can create maintenance concerns and potentially introduce unwanted particulate contamination.

Mighty Line's performance during the evaluation provides additional confidence in its durability for applications where maintaining clean, clearly identified floor-marking boundaries is important.

Why Floor-Marking Materials Matter in Cleanrooms

Floor markings serve several important functions in controlled environments such as ISO 7 & 8 Cleanrooms. They can help identify pedestrian walkways, designate equipment locations, establish material storage areas, identify restricted spaces, and support workplace organization and visual management programs.

In pharmaceutical, medical device, electronics, and other precision manufacturing operations, clearly identified floor areas can also help support established operating procedures and facility organization. Properly selected floor-marking products can contribute to these efforts without introducing unnecessary maintenance concerns.

However, selecting floor tape for a cleanroom involves more than simply choosing an appropriate color or width. Designers and facility professionals must consider the product's construction, adhesive system, physical durability, cleaning compatibility, and potential contribution to airborne particulate contamination.

These considerations are particularly important in the ISO 7 and ISO 8 Class environments, where maintaining established cleanliness requirements is an ongoing responsibility.

The Mighty Line® evaluation addresses several of these considerations by examining both airborne particle results following IPA cleaning and product condition after a 30-day installation period. Together, these findings provide a more comprehensive picture of product suitability than a material specification or product description alone.

Mighty Line® Construction and Industrial Performance

Mighty Line® floor tape is manufactured with a substantial 50-mil vinyl construction, patented beveled edges, and premium adhesive. These design characteristics have helped establish the product as a durable floor-marking solution for demanding industrial and warehouse environments.

Its 50-mil thickness provides a substantial product profile, while its precisely sloped, patented beveled edges are designed to minimize edge exposure and help reduce the potential for lifting associated with exposed tape edges. The premium adhesive is another important component of the product's overall construction.

For controlled environments, including ISO 7 & 8 Cleanrooms, these characteristics become particularly relevant when considering the importance of maintaining an intact, securely installed floor-marking system. The 30-day cleanroom evaluation, which revealed no observable product degradation, provides additional performance information beyond the product's established industrial applications.

The testing also expands the potential applications of Mighty Line® floor tape beyond conventional warehouse and manufacturing environments, providing architects, engineers, and facility professionals with additional information when evaluating floor-marking materials for specialized facilities.

A Valuable Consideration for Cleanroom Designers and EHS Professionals

For professionals responsible for designing, specifying, maintaining, or overseeing controlled environments, material selection is an important part of an effective contamination-control program. Floor-marking products should be evaluated alongside other materials and facility components, with consideration given to their intended application and the operating requirements of the environment.

The independent testing of Mighty Line® 50-mil, 2-inch Yellow and 3-inch Blue floor tape provides encouraging results in two important areas: at-rest airborne particle testing following IPA cleaning and a 30-day installed-product evaluation.

The results demonstrated zero measurable airborne particles at or above 0.5 microns during the reported at-rest testing, while the installed samples exhibited no observable product degradation following 30 days in a high-traffic cleanroom area.

Based on the independent testing and analysis, the evaluated products demonstrated suitability for ISO 7 and ISO 8 Class cleanroom applications. These findings provide additional information for professionals considering durable floor-marking solutions for controlled environments.

ShieldMark Incorporated continues to develop floor-marking products designed to improve workplace organization, safety, and operational efficiency. With its established 50-mil construction, patented beveled edges, premium adhesive, and industry-leading warranty, Mighty Line® offers a durable solution for demanding industrial applications.

This latest testing achievement represents another step forward in expanding the applications of Mighty Line® products and providing designers, engineers, architects, and EHS professionals with additional confidence when specifying floor-marking materials for environments where cleanliness and performance matter.

Mighty Line® — A safer, better-organized workplace starts from the floor up!