UL Listed Products

The Underwriters Laboratory(UL) is an independent product safety certification organization that evaluates products, components, materials and systems for compliance to specific requirements. When a Hapco datasheet indicates that an individual product is available in flame retardant(FR), it does not necessarily mean the product is certified by the Underwriters Laboratory. We do, however, carry a number of products that have been tested independently by the Underwriters Laboratory and carry a yellow card from them.

PRODUCT NAME FLAME CLASS YELLOW CARD TECHNICAL DATASHEET
Di-Pak E-4565FR V-0 View Certificate View TDS
Di-Pak R-4912FR V-0 View Certificate View TDS
Hapflex 565FR V-0 View Certificate View TDS
Hapflex 671FR V-1 View Certificate View TDS
Ultralloy 304 V-0 View Certificate View TDS
Ultralloy 3310 V-0 View Certificate View TDS
Ultralloy 3311 V-0 View Certificate View TDS
Ultralloy 3312 V-0 View Certificate View TDS
Ultralloy 910 V-0 View Certificate View TDS
Ultralloy 911 V-0 View Certificate View TDS
Ultralloy 912 V-0 View Certificate View TDS

Hapco conducts its FR testing according to the same procedures developed by UL to categorize a product as flame retardant. In this case the test method is known as 94 V. The letter “V” indicates that the sample is held vertically over the flame during the test. The last digit after the “V” is either a 0, 1, or 2 based on the results of the test.

V-0 Vertical Burn
Burning stops within 10 seconds after two applications of ten seconds each of a flame to a test bar. No flaming drips are allowed.
V-1 Vertical Burn
Burning stops within 60 seconds after two applications of ten seconds each of a flame to a test bar. No flaming drips are allowed.
V-2 Vertical Burn
Burning stops within 60 seconds after two applications of ten seconds each of a flame to a test bar. Flaming drips are allowed.

The following sequence depicts the 94 V test as it is conducted in Hapco’s lab. With the test sample suspended vertically, the technician moves the flame directly under the sample for ten seconds and then removes it. This is repeated once more when the sample self extinguishes. The times are then recorded and averaged. Depending on the results, the material is given one of three ratings as explained in the chart above.

94V Test Hapco

Although Hapco has many products that will pass with a V-0 rating, those products have not necessarily been sent to UL for an official rating and cannot be marked with their logo. If you would like more information on our flame retardant materials, please contact a Hapco Representative. To visit the Underwriters Laboratory website and find our materials there, please click here.

100% Mercury Free

All of Hapco's formulations are completely free of Mercury.

50th Anniversary

Hapco is proud to be celebrating 50 years in business.

ISO Certified

Higher Quality. More Efficiency.
View Certificate

Technical Expertise

Hapco's employees are knowledgeable and ready to help.

Join Our Mailing List

Get the latest news, updates, and articles from Hapco, Inc.
Join Now