UL gasket materials can provide flame resistance, ingress protection, or other specialized properties. For engineers, it’s important to understand what the different standards from Underwriters Laboratories (UL) mean. It’s also worth knowing if UL gasket materials are truly required in your component-level designs. Otherwise, you may “over-engineer” your gaskets and pay too much for materials.
UL 94 is a family of flammability standards that defines 12 different UL flame ratings for rubber and plastic materials. The most common classifications are UL 94 V-0, UL 94 HB, and UL 94 HBF. The V and HB designations indicate whether a material specimen was subjected to either a vertical (V) or horizontal (HB) burn test. As a rule, UL 94 V ratings are more demanding than UL 94 HB ratings.
As you can see then, getting the right flame-resistant compound isn’t as simple as asking for a “UL 94 gasket material.” When considering which UL standards may apply to your gasket design, you’ll also need to consider the following:
UL 94 V-0 applies to both rubber and plastic, and to both solid and foam materials.
UL 94 HB applies to rubber and is generally considered the easiest flame rating to achieve.
UL 94 HBF applies to foams and contains multiple flammability ratings.
1、OEM size to suit for customers' requirment
2、Various hardness for your choice
3、Multiple color available
4、Custom logo accepted ( engraved & embossed)
5、Large quantity order are able to be fulfilled
6、Strict quality control system