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North America and Mexico

6-Month Shelf Life Guarantees

Free Quotes Within 3 Days

Over 38 Years of Experience

(920) 249-4867

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Industry-Leading Solutions Since 1989

Lotar LLC provides material handling equipment built to tackle your toughest industrial challenges. As a family- and woman-owned business established in 1989, we've spent nearly four decades refining our products and delivering solutions that get the job done.

As the original manufacturer of test inks and test pens, we stand behind our products with a 6-month shelf-life guarantee on both pens and inks. Ready to improve your operations? Contact us for a free quote delivered within three days.

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Why Choose Us

Free Quotes Delivered in 3 Days

Over 38 Years of Experience

Original Test Ink Manufacturer

Original Test Pen Manufacturer

6-Month Shelf Life Guarantee

Family- and Woman-Owned Business

Arcospray 38

Our Arcospray 38 delivers consistent surface treatment testing across multiple applications. This solution ensures reliable results when working with plastics, metals, or composite materials.

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BLUE Test Pens and Inks

These BLUE test pens and inks provide accurate surface energy measurements for quality control processes. Manufacturers who need precision in their production lines trust these tools to deliver.

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Organic and GREEN Test Inks

Choose our environmentally conscious organic and GREEN test inks for sustainable surface testing. They deliver accurate results while reducing environmental impact.

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PINK Test Pens and Inks

Our PINK test pens and inks offer high-visibility surface tension testing for easy reading and interpretation. Fast-paced production environments benefit from quick assessments these products provide.

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QUICKTEST 38S Pen

The QUICKTEST 38®S Pen puts rapid surface analysis directly in your hand. This convenient tool simplifies your testing workflow while maintaining accuracy and reliability.

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RAPIDTEST 38

Get faster results with RAPIDTEST 38® technology built for high-volume testing scenarios. This system keeps your operations moving while maintaining strict quality standards.

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Surface Treatment Equipment

Our comprehensive surface treatment equipment lineup supports various industrial applications. From preparation to verification, these tools ensure proper adhesion and coating performance.

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Our Recent Projects

Turquoise ocean waves crashing with white foam from above

Aerial view of a winding river cutting through dense green forest.

Wind-swept sand dunes with diagonal ripples in warm brown and pink tones

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Here's what our satisfied customers are saying...

At Lotar, we take pride in providing exceptional surface energy testing solutions, including metal cleanliness testing, plastic surface testing, printing and adhesion testing, test inks, test pens, and surface treatment equipment for manufacturers and quality control professionals throughout North America and Mexico. We would be grateful if you could share your thoughts about our family- and woman-owned business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of Lotar and let others know what you think.