RTP Company: The Global Leader in Specialty Compounding

UL Recognized Flammability Ratings

This section provides information on the procedures and tests involved in obtaining UL Recognition of RTP Company specialty compounds.

In the case of finished goods, frequently the UL Recognition of component materials can eliminate the need for some tests on the final product. This can significantly reduce both your cost and the time required for evaluation.

RTP Company offers support in selecting materials, optimizing designs, and processing that can assist you in obtaining product certification from Underwriters Laboratories, Inc.

We can provide you with UL file numbers, copies of UL Yellow Cards and appropriate UL contact names. Upon request, we can also expedite UL Recognition and Yellow Cards for individual custom compounds.

UL Yellow Cards

These compounds are recognized under the Component Recognition Program of Underwriters Laboratories, Inc.

• RTP 100 Series
• RTP 200 Series
• RTP 300 Series
• RTP 400 thru RTP 900 Series
• RTP 1000 thru RTP 1800A Series
• RTP 2000 thru RTP 2800 Series
• RTP 3400 thru RTP 4700 Series
• Tradename Precolored

UL Testing Methods & Flammability Ratings

• UL94 HB Flammability Standard
• Requirements for HB
• UL94 V-0, V-1, V-2 Flammability Standard
• Requirements for V-0
• Requirements for V-1
• Requirements for V-2
• UL94 5VA & 5VB Flammability Standard
• Requirements for 5VA
• Requirements for 5VB
• UL Test Descriptions
• UL94 Criteria Summary
• Glow Wire Testing


• Obtaining Material Recognition

UL File Numbers for RTP Company

RTP Company compounds are listed under the "Plastics" section in the Underwriters Laboratories, Inc. Recognized Component Directory (QMFZ2) File E84658.

RTP Company has the ability to precolor select grades of resin from major resin manufacturers and maintain their UL Recognition. This is covered under the "Plastics Proprietary" section in the Underwriters Laboratories, Inc. Recognized Component Directory (QMTR2) File E147133N. [UL Yellow Cards for these materials are not available from RTP Company.]

Requesting a Yellow Card

Copies of UL Yellow Cards for RTP Company compounds listed in this section are available online from the UL iQ for Plastics online database at http://iq.ul.com, search using UL File Number E84658 for RTP Company compounds.

To begin the process of gaining UL Recognition for a custom compound not listed in this section, please contact the RTP Company sales representative for your area. The People Finder section of this web site can assist you in locating the appropriate RTP Company sales engineer or business manager.