Flame-Retardant

Epoxyset offers a comprehensive range of flame-retardant potting and encapsulating compounds, including epoxy, urethane, and silicone formulations. All flame-retardant products are bromine-free and compliant with RoHS and REACH requirements. Several formulations have also undergone rigorous independent testing and achieved a UL 94 V-0 flammability rating.

Product	Viscosity (cPs)	Pot Life	Service Temperature	Hardness	Datasheet
EC-1006M-4	6,000-8,000	5-6 hrs	-55°C-120°C	A-85	Download
EC-1207	9,000-12,000	2-3 hrs	-55°C-125°C	D-76	Download
EC-1012M	3,000-6,000	4-5 hrs	-40°C-160°C	D-91	Download
EC-1012MFR-HT	15,000-20,000	1-2 hrs	-55°C-200°C	D-91	Download
UC-2524	1500-3000	1-2 hrs	-55°C-130°C	A-86	Download
SC-550LV-RT	800-1500	1-2 hrs	-55°C-205°C	A-55	Download

Frequently Asked Questions

1. What is UL-94?
UL-94 is a standard set by Underwriters Laboratories for testing the flammability of plastic materials. In a controlled lab test, a specimen is exposed to a flame and rated according to how it burns or self-extinguishes. There are 4 rating classes, HB, V-2, V-1, and V-0 with V-0 being the hardest to meet.

2. What makes a potting compound flame retardant?
Some materials, such as silicones, are naturally flame retardant when attempting to pass V-0 requirements. However, most need to be specially formulated to meet the requirements. This includes introducing self-extinguishing fillers such as aluminum trihydrate, magnesium silicate, zinc borate, or ammonium polyphosphate.

3. Why is UL-94V-0 necessary?
Some applications require UL 94 V-0 because the applicable equipment standard or a customer specification calls for a material that stops burning quickly after a small flame is removed and does not produce flaming drips that ignite material below it. This is especially relevant when polymer parts are used near electrical components or other potential ignition sources.