Self-Adhesive Rubber Waterstop

Waterstop is installed in the construction joints, settlement joints, deformation joints between, to play a water stop leak prevention role. According to the different materials, the waterstop is generally divided into: rubber waterstop, plastic waterstop, steel edge waterstop and steel plate waterstop.

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Product Description

Product Characteristics

1, With a certain mechanical strength and large elongation

2, Good chemical stability, good corrosion resistance to acid and alkali and salt aqueous solutions

3, Resistant to tearing, strong strain, good elastic recovery, good water stopping effect

4, The lap joint is directly bonded, which saves time and effort compared with the hot welding method, and can avoid the disadvantage of water stop failure caused by poor welding

5, Weather resistant, aging resistant, stable product performance, long service life

The Comparison Of Ordinary Waterstop And Self-Adhesive Waterstop

General waterstop

Advantages of self-adhesive waterstop

The waterstop is falling off and cannot be replaced for repair

Causes: the process is difficult, construction factors become the main reason for the quality of the waterstop, construction is completed can not be replaced after repair.

Simplify the process

Advantage: Self-adhesive waterstop with a self-adhesive layer can be fixed with concrete directly, and the joints are directly treated with bonding, simplifying the existing construction process.

Performance Indicators

Table 1 Physical and mechanical properties of rubber and steel edge rubber water stops

Serial number	Projects				Requirements
					Type B	S-shape
1	Hardness (Shore A) degrees				60±5	60±5
2	Tensile strength MPa				≥15	≥12
3	Elongation at tear				≥450%	≥450%
4	Compression permanent deformation	70℃×24h, 25%			≤30%	≤30%
		23℃×168h, 25%			≤20%	≤20%
5	Tear strength kN/m				≥30	≥30
6	Brittleness temperature ℃				≤-45	≤-45
7	Hot air aging (70℃×168h)		Shore hardness		≤6	≤6
			Tensile strength MPa		≥12	≥10
			Elongation at tear		≥400%	≥400%
8	Alkali resistance (saturated Ca(OH)2 solution, 23°C x 168h)		Shore hardness		≤6	≤6
			Tensile strength MPa		≥12	≥10
			Elongation at tear		≥400%	≥400%
9	Ozone aging [50×10-8 , 20%, (40±2)℃×48h]				No cracking	No cracking
10^a	Rubber to metal bonding				Rubber damage
11	Gum content				≥35%
12^b	Peeling strength with post-cast concrete (or cement mortar) N/mm			No treatment	≥3.0
				Cement powder contaminated surface	≥2.0
				Sediment contaminated surface	≥2.0
				Thermal Aging	≥2.0
				After immersion	≥2.0
13^c	With post-cast concrete (or cement mortar) shear strength N/mm			No treatment	≥10.0
				Cement powder contaminated surface	≥7.5
				Sediment contaminated surface	≥7.5
				Thermal aging	≥7.5
				After immersion	≥7.5
14^d	Anti-tampering water (0.6MPa)			No treatment	No water scouring
				Cement powder contaminated surface	No water scouring
				Sediment contaminated surface	No water scouring
				Thermal aging	No water scouring
				After immersion	No water scouring
15e	Anchorage performance				Rubber damage or pull The force value reaches 2.5kN without pulling out
a Only steel edge rubber type water stops are required. b Self-adhesive rubber waterstop requirements only. c Self-adhesive steel edge rubber waterstop requirements only. d Self-adhesive rubber waterstop and self-adhesive steel edge rubber waterstop requirements only. e only the requirements of the self-adhesive rubber waterstop in the buried type.

Application Scope

Construction joints and deformation joints set up during concrete pouring; underground facilities, tunnel culverts, water conveyance tanks, etc. The products can be customized in size according to the specifications required.