self-adhesive modified bitumen waterproof material/asphalt roof underlay
1. Introduction:
Self-adhesive modified bitumen waterproof membrane is composed of synthetic rubber like SBS, good road asphalt and viscosity increaser, with or without polyester felt. The upper surface is covered by PE film, aluminum foil film or sand; the silicon depositing release film is covered on the lower surface as anti-sticking layer.
Perfect waterproof system is an important guarantee for waterproof project quality and its longstanding performance. This adhered waterproof system is created on basis of scientific theories research and practical project, which is scientific, advanced, applicable, reliable and economical.
2. Features:
· Self-adhesion without bonding agent, or torching.
· Good rubber elasticity and elongation
· Excellent adhesion bond
· Good self-coalescence
· Safe application, no pollution
· Excellent waterproof and high strength
· Available for wet ground
3. Applications:
· Widely used in the industrial and civil building roofing, basement, underground, pool, tunnel, wooden & metal roofing.
· Specially applied in the chemical factory, garment factory, granary, etc.
· Especially used in cold places.
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4. Classification:
Upper materials: PE film, double-adhesive PE film.
Width: 1m
Thickness: 1.2mm, 1.5mm, 2.0mm
Length: 20m or customized
5. Technical Index:
China National Standard GB23441-2009
| No. | Item | PE film | D |
| Type I | Type II |
| 1 | Tensile properties | Tensile strength(N/50mm) ≥ | 150 | 200 | - |
| Elongation at Max. tensile strength % ≥ | 200 | - |
| Elongation at bitumen breaking % ≥ | 250 | 450 |
| Phenomenon when stretching | No bitumen coating cover layer and PE film separation phenomenon before PE film rupture | - |
| 2 | Nail tear resistance N ≥ | 60 | 110 | - |
| 3 | Heat resistance | 70ºC slippage less than 2mm |
| 4 | Low temperature resistance ºC | -20 | -30 | -20 |
| 5 | Watertightness 0.2Mpa,120min | No leakage | - |
| 6 | Peel strength between membranes N/mm ≥ | 1.0 |
| Peel strength between membrane and aluminum sheet. N/mm ≥ | 1.5 |
| 7 | Nail bar watertightness | pass |
| 8 | Oil permeability/sheets ≤ | 2 |
| 9 | Holding power/min ≥ | 20 |
| 10 | Heat aging test | Tensile strength retention % ≥ | 80 |
| Elongation at Max. tensile strength % ≥ | 200 | 400 ( Asphalt layer Elongation) |
| Low temperature resistance ºC | -18 | -28 | -18 |
| Peel strength between membrane and aluminum sheet N/mm ≥ | 1.5 |
| 11 | Heat stability | Appearance | No slipping, flowing or dripping |
| Dimensional Changes % ≤ | 2 |
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HONGYUAN ranks TOP 3 in China waterproof construction industry.
Weifang Hongyuan Waterproof Materials CO., Ltd is a professional and leading manufacturer of waterproof materials for 20 years, ranking TOP 3 in the waterproofing industry in China.
Founded in 1996, headquarters is in Weifang, China. There are 110,000sqm manufacturing base, and more than 1000 employees.
At present, Hongyuan Group has 5 major production bases, 7 branch offices, more than 300 excellent agents, over 1000 franchised dealers and after-sale institutions. The Group has 41 modern waterproofing production lines. Annual production of waterproof membrane reaches 150 million square meters, coating 80,000 tons. Products nearly cover all waterproofing areas, total 9 major series and over 100 varieties, basically realizing complete coverage of varieties and satisfaction of functions. Products are exporting to more than 30 countries and regions.
As a strong and experienced manufacturer, we have the quality certificate of ISO9001 and environment management system certificate of IS014001. And as a D&B D-U-N-S registered company, we have set a good faith business image in the world.
Sincerely hope to establish solid relationship with you in long term!!