Quick answers for water treatment, marine protection, and purifier applications. (Samples and third-party testing available)
How is a PP water filtration membrane different from regular nonwoven fabric?
PP melt-blown membrane for liquid filtration is engineered to efficiently capture fine particles and bacteria in flowing liquids, while general nonwovens are often used as support or pre-filter layers. AF-1400 is a membrane-grade structure with higher surface uniformity and chemical stability.
Is this material suitable for drinking water or food-contact applications?
Yes. We use food-contact-grade PP resin. However, the final system must still pass NSF or local drinking-water regulatory testing before use.
What is the typical pore size of AF-1400?
Depending on basis weight and process, the typical pore size is 2–20 µm.
Can it be used in backwashable or multi-use systems?
PP provides good mechanical strength and chemical stability and can support low-pressure backwashing or surface cleaning. For repeated cycles, we recommend multi-layer support structures to prevent tearing.
What chemicals and operating conditions can it tolerate?
Polypropylene is resistant to acids, bases, salts, and many organic solvents (e.g., ethanol, acetone). We recommend operating below 90 °C to maintain pore stability and service life.
Can you make different thicknesses or multi-layer structures?
Yes. Thickness can be customized (0.06–0.20 mm) or laminated into two/three layers for gradient filtration or enhanced mechanical support.
Can the membrane be combined with other materials (e.g., PET, activated-carbon fabric)?
Yes. We can use thermal lamination or adhesive dotting to create multifunctional stacks (e.g., PP + PET support mesh, or PP + activated-carbon layer). Custom lamination and sampling are available.
How about flow rate and pressure drop performance?
Actual performance varies with basis weight, pore size, and application conditions (e.g., water quality, pressure).
We can provide sample rolls for laboratory testing and help evaluate the most suitable flux and differential-pressure parameters.
Can you provide third-party tests or SGS reports?
Yes. Upon request, we can arrange physical and chemical testing, including pore-size distribution, tensile strength, and RoHS/REACH compliance.
What are the minimum order quantity (MOQ) and lead time?
Standard MOQ is 2,000 ~ 10000 m². Typical lead time is 3–5 weeks; special specifications or lamination processes will be confirmed after design review.
