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When you need accurate plastic surface testing, Lotar LLC delivers reliable results that keep your production running smoothly. Serving North America and Mexico since 1989, we are the original manufacturer of test inks and test pens, bringing nearly four decades of experience to every project. Our solutions help you verify surface treatments and ensure optimal adhesion for printing, coating, and bonding applications.

Reach out to us for a free quote delivered within three business days.

Plastic surface testing helps prevent costly production issues before they happen. Knowing your surface energy levels matters when you prepare surfaces for printing, laminating, or assembly. 

Testing becomes essential in these situations:

• Before applying inks, coatings, or adhesives
• After flame, corona, or plasma surface treatments
• When experiencing adhesion failures
• During quality assurance processes
• When switching material suppliers

Our test pens and inks feature a six-month shelf-life guarantee, so you'll have consistent, dependable testing materials whenever you need them.

As a family- and woman-owned business with 38 years in the industry, we have built our reputation on quality products and exceptional service. Being the original manufacturer of test inks and test pens means you get products designed by people who understand surface testing thoroughly.

• Quick turnaround with quotes in three days or less
• Nearly four decades of specialized experience
• Guaranteed shelf life on all testing products
• Family values combined with professional service
• Direct from the manufacturer, no middleman

Since our founding in 1989, we have helped countless manufacturers across North America and Mexico solve their surface testing challenges with precision and reliability.

Prevent adhesion problems from slowing down your production or compromising your product quality. Lotar provides the testing solutions you need, backed by decades of manufacturing experience and a commitment to your success. Serving North America and Mexico with quality you can count on, we support your surface testing requirements with products that deliver consistent, accurate results.

Contact us today to discuss your plastic surface testing needs and receive your free quote.