Self-Adhesive Waterproof Sheet

Product Description

Self-adhesive waterproof sheet is a polymer composite self-adhesive waterproofing membrane, using raw materials (EVA, ECB) resin with plasticizers, antioxidants, by heating and melting, plasticizing, extrusion molding, traction after the formation of the sheet, self-adhesive waterproof sheet is composed of waterproof sheet body, self-adhesive cloth and adhesive tape. This kind of waterproof sheet construction directly adhered to the geotextile, without the use of hot melt gasket welding, saving time and effort, and solve the problem of welding through due to improper construction of hot melt welding and other diseases.

Product Features

1, Cold construction at room temperature, no need for hot melt. Directly bonded to geotextile, simple construction, good waterproof performance

2, has a high tear strength, can effectively resist the cracking of the grassroots, deformation of the stress generated by the waterproofing system damage

3, Have high penetration and impact resistance.

4, Higher adhesion to ensure the continuity and sealing of the lap joints of the coil

5, High and low temperature resistance, anti-aging, long service life

6, Have high flame retardant performance

The ordinary waterproof board and self-adhesive waterproof board comparison

General waterproof sheet	Advantages of self-adhesive waterproof sheet
Ordinary waterproof board tear strength is low; laying hanging way using hot melt gasket welding, due to welding time and temperature is not good to grasp, the construction quality is not stable, there are welding through and welding is not firm phenomenon, waterproof effect can not be guaranteed.	Self-adhesive waterproof sheet has a high tear strength and high penetration resistance impact resistance; construction is simple, cold construction at room temperature, no heat fusion, direct bonding in the geotextile, and good waterproof performance.

Performance Indicators

Table 1 Physical and mechanical properties of waterproof board

Serial number	Projects		Requirements
1	Tensile properties	Tensile strength at break (MPa)	≥18
		Tensile elongation (%)	≥650
2	Tear strength (N/mm)		≥100
3	Impermeability (0.3MPa/24h)		No Leakage
4	Low temperature bendability (-35℃)		No cracks
5	VA content %		≥5
6	Heating expansion	Extension (mm)	≤2
		Shrinkage (mm)	≤6
7	Hot air aging (80℃×168h)	Tensile strength at break (MPa)	≥16
		Tensile elongation (%)	≥600
8	Alkali resistance (saturated Ca(OH)2 solution, ×168h)	Tensile strength at break (MPa)	≥17
		Tensile elongation (%)	≥600
9	Artificial weathering (550W/m2×250h)	Tensile strength retention at break (%)	≥80
		Tensile elongation retention (%)	≥70
10	Puncture strength	Thickness 1.0mm (N)	≥350
		Thickness 1.2mm (N)	≥400
		Thickness 1.5mm (N)	≥450
11	Combustion performance	Combustion performance grade	B1 level
		Smoke production characteristics grade	S3
		Combustion droplet/particle class	d0
		Flue gas toxicity level	t1

Application Scope

Railroad tunnel anti-drainage system; subway and highway tunnel anti-drainage system; underground waterproofing system, building roof waterproofing system.

Products can be customized in width as required.

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