Acrylic Sheets With Class B Flame Spread

In all cases smoke development must be less than 450.

Acrylic sheets with class b flame spread.

Its higher impact strength makes it a great glass replacement for applications such as garage door windows storm windows and other glazing needs. Optix acrylic sheet is a lightweight impact resistant optix acrylic sheet is a lightweight impact resistant transparent material that is a great replacement for glass in many applications. 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. Flammability of paint study national paint coatings association inc 1974 project 3 3774 141 southwest research institute.

Although stronger than glass and plexiglass fire rated polycarbonate is easily die cut punched and sheared to meet your fabrication. Acriglas sheet is a combustible thermoplastic and is classified as a slow burning plastic. Precautions should be taken to protect the material from flames and high heat sources. 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.

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. Overview of ul 94 flame classifications. The ul listed material for flammability is a clear polycarbonate sheet that combines excellent formability and impact resistance. From these observations a flame spread rating can be calculated.

The first determines the material s tendency either to extinguish or to spread the flame once the specimen has been ignited. 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. Lexan thermoclear thermoclick and corrugated sheet products have a class a. 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.

Fire rated polycarbonate sheet is a flame inhibiting uv stable plastic sheeting and glazing product that is virtually unbreakable. Is an authorized stocking distributor of lexan polycarbonate sheet products including flame retardant lexan 9034v. Access panels may be required for evacuation and venting of rooms glazed with acriglas sheet. Flame retardant polycarbonate sheets.