SBS/APP Bitumen Membrane FAQ

1. What is SBS/APP Modified Bitumen Waterproofing Membrane?

Answer:
SBS (Styrene-Butadiene-Styrene) and APP (Atactic Polypropylene) modified Bitumen Membrane is high-performance waterproofing materials. They are made by adding polymers to bitumen to improve elasticity, UV resistance, and temperature performance.


2. What is the difference between SBS and APP membranes?

Answer:

  • SBS Bitumen Membrane  Excellent flexibility at low temperatures. Ideal for cold regions.

  • APP Bitumen Membrane : Better UV resistance and high-temperature performance. Suitable for hot climates.


3. What thicknesses are available?

Answer:
We offer membranes in 3mm, 4mm, and 5mm thicknesses.

  • 3mm: Economical and lightweight, suitable for single-layer or underlayer applications.

  • 4mm: Standard option for general roofing.

  • 5mm: Heavy-duty, ideal for areas with severe weather or mechanical stress.


4. What surfaces can this membrane be applied to?

Answer:
It can be applied to:

  • Concrete roofs

  • Metal roofs

  • Timber surfaces

  • Basements, tunnels, bridges, and other civil structures


5. What are the application methods?

Answer:

  • Torch-on method for SBS/APP membranes

  • Self-adhesive version available for flame-free and safer installation

  • Cold-applied method with adhesive (if specified)


6. Is the membrane UV resistant?

Answer:
Yes. Especially APP modified membranes are UV resistant and suitable for exposed roofing. For SBS membranes, an additional protective layer (like granules or aluminum foil) is recommended for UV protection.


7. What is the expected lifespan?

Answer:
Typically, 10 to 20 years, depending on the thickness, installation method, and environmental conditions. Regular maintenance can extend the service life.


8. Does it comply with international standards?

Answer:
Yes. Our membranes meet ISO 9001, CE, ASTM, and EN standards, and can be customized for different country requirements.


9. Can you provide customized rolls (width/length)?

Answer:
Yes. Standard roll size is 1m x 10m, but we can customize roll length, packaging, and even branding according to your needs.


10. What is the MOQ and lead time?

Answer:

  • MOQ: Usually 1x20ft container

  • Lead time: 7–15 days depending on order quantity and customization


11. Do you offer installation guidance or support?

Answer:
Yes. We provide detailed installation manuals, video guides, and technical support for your project requirements.


12. How do you pack and ship the rolls?

Answer:

  • Rolls are wrapped with PE film or shrink wrap

  • Loaded vertically or horizontally on pallets

  • Shipping from Qingdao Port, with full support for export documentation


13. Is sample available?

Answer:
Yes. Free samples are available on request, with freight collect or negotiable for long-term clients.

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For more information or to inquire about our waterproof floor paint solutions, feel free to get in touch with us. We’re here to help!

We look forward to assisting you with all your waterproofing needs!

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