Elastomeric Membrane System for Expansion Joint Waterproofing
Estopper Hypatite is a hypalon membrane for use in movement joint or crack in a structure to prevent ingress of water. It is bonded with Estobond Hypa, specially formulated adhesive.
Estopper Hypatite has been tested by SIRIM BHD, in accordance to ASTM D412, on the Elongation at Break and Tensile Strength and complied with the specification in this data sheet.
Estopper Hypatite is suitable for buried joints and over strapping joints in:
|Density (kg/litre)||1.7 – 1.8|
|Pot Life at 25°C||35 mins|
|Service Temperature BS 5075||
|Gel Time at 25°C||1 hour|
Concrete Steel Hypatite
Excellent Good Excellent
|Slump Resistance (max 25°C)||
Estopper Hypatite is supplied in standard widths 200 mm. It is for use in buried joints (Expansion, construction and contraction joint) in trafficked surfaces and bridge decks.
Substrate to receive Estopper Hypatite must be sound, dry, frost and dust free. New concrete must be fully cured and free from curing compound. The concrete surface ideally should be wood float finished and free from irregularities.
Any honeycombing must be repaired using suitable Estop patching mortar
Measure and cut the length of Estopper Hypatite and ensure that it is dry and clean from any oil, grease etc.
Mixing and application of the adhesive Estobond Hypa adhesive is supplied in two parts.
Mix the whole pack thoroughly using a slow speed drill until uniform colour is achieved.
Apply the mixed Estobond Hypa on each side of the joint to a thickness of approximately 3mm. Place Estopper Hypatite on top of Estobond Hypa. Using a hard roller, force the Estopper Hypatite down into the Estobond Hypa until the material come out from the punched holes of Estopper Hypatite.
Apply an additional 3mm layer of Estobond Hypa to hold the Estopper Hypatite. See Illustration 1 below. Estobond Hypa shall be applied at least 5mm wide, as per illustration below.
The membrane should be applied not more than 20 minutes after adhesive application and allowed to cure to ensure that the adhesive is not disturbed prior to laying of asphalt or other surfacing.
Jointing the Estopper Hypatite membrane Estopper Hypatite can be jointed by Estobond Hypa.
|Estopper Hypatite||I mm (T) × 200 mm (W) × 20
m (L) per roll
|Estobond Hypa||2 litre pack|
|200 mm (W) × Any length|
|3.0 m × 200 mm per 2 L pack|
* Coverage may vary depending upon the regularity of the surface finish.
Estop offers a comprehensive range of high performance, high quality of product for both new and existing concrete surfaces. In addition, the company offers a technical support package to specifiers, end-users and contractors, as well as on site technical assistance.
Estobond Hypa should be stored in original unopened packaging in dry conditions under ambient room temperature. Under these conditions, the product will have a shelf life of 12 months. Shelf life may reduce if stored in extreme heat locations.
Ensure adequate ventilation when applying Estobond Hypa. Wear impervious gloves and barrier cream if user is sensitive to resin system. Wear eye protection.
Estop manufactures and offers a wide range of complementary products, which includes waterstops, waterproofing products, grouts, anchors, specialized flooring products. In addition, a wide range of products formulated for repair and refurbishment of spalled concrete are available.