YY-902 | Self-Adhesive Modified Bitumen Waterproof Membrane

YUNYAN YY-902 is a self-adhesive polymer-modified bitumen waterproof membrane for below-grade, roofing, tunnel, pool, and general damp-proofing work. The peel-and-stick format is designed for application to a sound, primed substrate without hot asphalt or torching.

For dependable results, specify Self-Adhesive Modified Bitumen Waterproof Membrane as part of a complete system, verify substrate compatibility, and follow the approved technical data sheet and site trial.

Key Features & Benefits

· Excellent waterproof performance;.

· Excellent high temperature resistance and low temperature flexibility;.

· Strong puncture resistance;.

· The base layer has strong adhesion and good adhesion to a variety of substrates, and can lock the leakage caused by the damage of the coil to a local extent, thereby effectively preventing drowning;.

· Good stability, good chemical corrosion resistance, easy construction, pressure sensitive bonding, long-lasting and stable waterproof effect.

Recommended Applications

· All kinds of non-exposed underground works, roofing works, subways, tunnels, pools and other parts of the waterproof and moisture-proof works.

· Roofs and balconies.

· Basements and retaining walls.

· Bathrooms and wet areas.

· Concrete and masonry substrates.

· Localized leak-repair and renovation work.

Product Spec

PRODUCT NAME	PRODUCT TYPE	PRODUCT STRUCTURE	THIICKNESS (mm)
self-leveling polymer modified bitumen waterproofing membrane	TYPE I/TYPE II	DOUBLE SIDE ADHESIVE	4.0mm

PRODUCT PARAMETER executed by：GB 23441-2009

Serial number	Item			Index
				TYPE I	TYPE II
1	Soluble content/(g/㎡) ≥			—	2900
2	Tensile property	Tensile force/(N/50mm) ≥		500	800
		Break elongation of membrane,% ≥		300	—
		Maximum tensile elongation ≥		—	40
3	Tear strength of screw rod/N ≥			200	200
4	Impact properties			diameter(10±0.1)mm, no leakage
5	static state load			20kg, no leakage
6	Heat resistance			70℃,2h No displacement, flow, dripping
7	Low-temperature bending			—25℃, no cracking	—
8	Low-temperature flexibility			—	—25℃, no cracking
9	Oil permeability/ amount of sheets ≤			—	2
10	Water repellency			0.6 Mpa, no ooze water
11	Stripping with concrete strength/(N/mm) ≥		No processing	2.0
			Surface of cement powder pollution	1.5
			Surface of silt pollution	1.5
			Ultraviolet radiation aging	1.5
			Thermal aging	1.5
12	Stripping with concrete strength/(N/mm) ≥			1.5
13	Thermal aging (70℃,168h)		Tension retention rate/％ ≥	90
			Elongation retention rate/％ ≥	80
			Low-temperature bending	—23℃, no cracking		—
			Low-temperature flexibility	—		—23℃, no cracking
14	Heat stability		Appearance	No displacement, flow, dripping
			Dimensional change/％ ≤	2