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Professional Evaluation Data Interpretation: PVC Flame-Retardant Waterproof Fabric Rolls

This product adopts a composite process of high-strength polyester base fabric and flame-retardant PVC coating, specially developed for fire safety scenarios. Through strict testing of EN 13501-1 B-S1, d0 level, its combustion droplet index has reached the highest safety level. Laboratory verification shows that its Limiting Oxygen Index (LOI) is ≥ 32%, far exceeding that of ordinary materials (usually<22%). Maintain flame retardancy while maintaining a hydrostatic pressure value of ≥ 5000mm, and pass the -25 ℃ low-temperature bending test without cracks. After 100000 Martindale abrasion tests and 500 hours of salt spray testing, the coating showed no peeling or corrosion, making it suitable for fields with dual strict requirements for fire and waterproofing, such as chemical plants and warehouse enclosures.

PVC flame retardant waterproof cloth roll selection guide

1. Flame retardant level certification verification
It is necessary to confirm that the product has an official certification report of EN 13501-1 B-S1, d0 level (or equivalent). Pay attention to distinguishing between "flame retardant treatment" and "intrinsic flame retardant" materials, and choose products with a limit oxygen index (LOI) ≥ 30%. Their fire resistance and durability are significantly better than ordinary flame retardant coating fabrics.
2. Balance of comprehensive protection performance
Under the premise of ensuring flame retardancy, verify the static water pressure value (should be ≥ 5000mm) and wear resistance frequency (recommended to be ≥ 100000 revolutions per minute). Avoid choosing products that sacrifice waterproofing or durability for the pursuit of flame retardancy, ensuring long-term protection in harsh environments.
3. Environmental adaptability and safety
According to the usage scenario, confirm that the material has passed the -25 ℃ low-temperature bending test and corrosion resistance test (such as salt spray test ≥ 500 hours). For densely populated or special industry locations, additional attention should be paid to the detection data of smoke density and toxic gas release during combustion to ensure comprehensive safety.

Q: What is the actual flame retardant effect of this flame-retardant fabric in real fire situations?
Answer: The effect is significant. Recently, a local electrical short circuit in the workshop caused open flames to splash onto the tarpaulin, causing the material to quickly carbonize and self extinguish without spreading. This validates the reliability of its EN 13501-1 B-S1, d0 level flame retardant standard, and provides us with valuable emergency response time.
Q: Will its waterproof performance decrease due to flame retardant treatment when used outdoors for a long time?
Answer: No significant decrease was found. The tarpaulin has covered the outdoor equipment for nearly two years. After many rainstorm, the hydrostatic pressure has always been stable at more than 5000mm, and the internal equipment has been kept dry, proving that its flame retardancy and waterproof performance have been well balanced.
Q: Is the material prone to becoming brittle in low temperature environments?
Answer: Maintain good flexibility. When used outdoors in winter in the north (with a minimum temperature of -20 ℃), the tarpaulin can be retracted smoothly without low-temperature brittleness or cracking. Its -25 ℃ low-temperature bending certification has been effectively verified in practical applications.

Company Backround:

Zhejiang Hanlong New Materials Co.,Ltd.

     Was established in 2016.It is a modern enterprise engaged in industrial fabric research and development,design,production,and sales.

     The company has introduced advanced coating and laminating production lines, -mainly producing PVC,PET,TPU,TPO,and other sandwich materials used in tents,membrane structures,airtightness,luggage,protection,medical,and other fields.

Contact us

Tel:0086 15958345754 

Email: Lex@zjhanlong.cn

Our Fcatory:Building B, No. 16 Huajin Road, Zhouwangmiao Town, Haining City, Jiaxing City, Zhejiang Province