GP-PLM Pre-laid Waterproof Membrane

Pre-laid waterproof membrane, composed of main material, self-adhesive adhesive, surface anti-(reducing) adhesion protective layer (except membrane overlap area), isolation material (when necessary), is bonded with post-poured concrete to prevent water from seeping from the bonding surface.

Product Features

● Pre-laid self-adhesive waterproofing roll-roofing is mostly single-sided self-adhesive;

● High strength, high extensibility, effectively avoid the building structure expansion and contraction displacement on the waterproof layer damage;

● Excellent waterproofing, effectively solve the problem of underground waterproofing.

Product Specifications

Products according to the main material is divided into plastic waterproofing membrance (P class), asphalt-based polyester tire waterproofing membrance (PY class), rubber waterproofing membrance (R class)
● P type: The total thickness of the membrane is 1.2mm, 1.5mm, and 1.7mm;

● PY type: 4.0mm;

● R type: The total thickness of the membrane is 1.5mm and 2.0mm;

● Other specifications are determined by both the supply and demand parties.

Implementation Standard

《pre-laid waterproofing membrance》product performance implementation standard
NO.	Item		Index
			P	PY R
1	Soluble matter content/(g/m²) ≥		───	2900	───
2	Tensile properties	tensile force/(N/50mm) ≥	600	800	350
		tensile strength/Mpa ≥	16	───	9
		elongation at break of the membrane/% ≥	400	───	300
		elongation at maximum tensile force/% ≥	───	40	──
		phenomenon during stretching	There is no separation phenomenon between the adhesive layer and the main body material layer or the base fabric.
3	Nail-rod tear strength/N		400	200	130
4	Elastic recovery rate/% ≥		───	───	80
5	Puncture resistance strength/N ≥		350	550	100
6	Impact resistance performance(0.5kg.m)		No leakage
7	Static load resistance		20kg,No leakage
8	Heat resistance		80℃,2h No slipping, flowing or dripping	70℃,2h No slipping,flowing or dripping	100℃,2h No slipping,flowing or dripping
9	Low-temperature bending property		Main material -35℃,No crack	───	Main material and adhensive layer -35℃,No crack
10	Low-temperature flexibility		Adhensive layer -25℃,No crack	-20℃,No crack	───
11	Oil seepage sheet		1	2	1
12	water migration resistance(hydraulic gradient)		0.8Mpa/35mm,4h No water seepage
13	Water impermeability(0.3Mpa,120min)		Water impermeable