Acrylic Sheets With Class B Flame Spread

Although stronger than glass and plexiglass fire rated polycarbonate is easily die cut punched and sheared to meet your fabrication.

Acrylic sheets with class b flame spread.

Overview of ul 94 flame classifications. Fire rated polycarbonate sheet is a flame inhibiting uv stable plastic sheeting and glazing product that is virtually unbreakable. Flammability of paint study national paint coatings association inc 1974 project 3 3774 141 southwest research institute. The first determines the material s tendency either to extinguish or to spread the flame once the specimen has been ignited.

Its higher impact strength makes it a great glass replacement for applications such as garage door windows storm windows and other glazing needs. In all cases smoke development must be less than 450. Acriglas sheet is a combustible thermoplastic and is classified as a slow burning plastic. Access panels may be required for evacuation and venting of rooms glazed with acriglas sheet.

Flame retardant polycarbonate sheets. For example if the flame travels 19 1 2 feet in less than 5 1 2 minutes the time required for flame to spread on 19 1 2 feet of red oak the rating is 100 times 5 1 2 divided by the time minutes in which flame spreads 19 1 2 feet on the sample. From these observations a flame spread rating can be calculated. Plexiglas g acrylic sheet in thicknesses 0 118 0 236 and 0 472 pass the requirements for flammability per faa far 25 853 appendix f part 1 paragraphs a 1 iv procedure b 5 15 second horizontal test formaly 25 853 b 2.

Ul 94 the standard for safety of flammability of plastic materials for parts in devices and appliances testing there are two types of pre selection test programs conducted on plastic materials to measure flammability characteristics. Ac plastics is proud to offer makrolon low flammability lf plastic sheeting solutions. Acrylic flammability data flammability. This material can thus be classified category tp b according to bs 2782 method 508 a for thermoplastics material as defined by the building regulations u k.

The ul listed material for flammability is a clear polycarbonate sheet that combines excellent formability and impact resistance. The results of tests for fire propagation when tested to bs 476 part 7 confirm that acrylic glazing achieves a class 3 classification u k. Precautions should be taken to protect the material from flames and high heat sources. Lexan thermoclear thermoclick and corrugated sheet products have a class a.