620 White Mason Nylon Line 285'

Overview

The Marshalltown 620 White Mason Nylon Line (M620) is designed for masonry, concrete, landscaping layout, and site staking applications. This 285-foot spool of twisted nylon mason's line is manufactured in the U.S.A. and delivers consistent performance across a range of professional job-site conditions.

Technical Features

• Heat-set after winding: The twisted nylon construction is heat-set post-winding, increasing dimensional stability and reducing line distortion during use.
• Mortar, oil, and mildew resistant: The nylon material is unaffected by mortar, oil, and mildew, extending the serviceable life of the line in harsh job-site environments.
• Non-water-absorbing: The line will not absorb water, preventing weight gain, stretching, or degradation when used in wet or outdoor conditions.
• 285-foot spool length: Provides an extended continuous run suitable for large-scale layout tasks without the need for mid-run splicing.
• Made in the U.S.A.: Domestic manufacture ensures consistent quality control standards throughout production.

Applications

• Brick and block laying — provides a straight, stable reference line for consistent course alignment.
• Concrete forming and layout — marks boundaries and guides for poured concrete work.
• Landscaping layout — suitable for defining borders, grading lines, and landscape installation guides.
• Site staking — used to establish perimeter lines and reference points during initial site preparation.