Estoflex SM is a polymer modified emulsion. The material is spray applied in conjunction with a water soluble catalyst through specially designed spray equipment.
It can be applied over damp surfaces and onto green concrete.
Estoflex SM has been tested by SIRIM BHD & Testech Sdn Bhd, in accordance to BS 1881 Part 122:1983, on Water Absorption Test; ASTM E96-00, on Water Vapour Transmission and complied with the specification in this data sheet.
Estoflex SM is a spray applied, seamless, polymer modified emulsion designed for a range of waterproofing applications including R. C. roof basement, underground structures and intricate details.
|Solid Content, %||60|
|Ultimate Elongation, %
|Ultimate Tensile Strength,
|Recovery from 350%
|Modulus kN/mm2ASTM D412-90||0.06|
|Tear Resistance, kN/m
|Puncture Resistance, N
(at maximum displacement)
|Crack bridging capability, mm||1 – 2|
|Negative – passes @10 m
Positive – passes @ 70 m
|Water Absorption, %
BS 1881 Part 122
|Shore A Hardness
|Water Vapour Transmission,
g/m2/day ASTM E96-00
|Water Vapour Diffusion (SD), m
|Methance Diffusion, cm2S-1||2.75 x 10-6|
|Chloride Ion Diffusion
|NIL @ 120 days|
|Chemical Resistance||Resistant to mild alkalis
Resistant to mild acids
Not resistant to solvents
Nor resistant to oils
All surfaces shall be cleaned and free from dust, dirt oil, grease moss and other materials which may affect adhesion.
All ribs and protrusions must be removed and make good using Estop repair mortar.
Estoflex SM may be used on damp surfaces or applied onto green concrete. Estoflex SM will not bond when applied directly to permanently wet ponding substrates.
No priming coat is required for Estoflex SM waterproofing system.
Estoflex SM is applied to the substrate using specifically designed spray application equipment. It is applied in a single coat by wet passes to give a minimum dry film thickness of 1.5 to 2.0 mm.
The material is applied from the lowest to the highest point on slow even strokes.
Overspray can be prevented by the use of baffle board or by masking off.
Estoflex SM membrane must be protected from traffic and backfill and weathering soon after application using Estop Fibreglass or needle punch, geotextile materials. Protective screed is needed for R.C. flat roof waterproofing.
|Estoflex SM||209 litre drum
20 litre pail
|Estoflex SM Catalyst||20 litre pail|
|Estoflex SM||0.33 to 0.44 2/litre|
|Estoflex SM with Estop
|2.0 – 2.5 mm|
|Estoflex SM with needle
|2.5 – 3.0 mm|
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.
Estoflex SM should be stored on pallets in dry conditions. Under these conditions, the product will have a shelf life of 6 months.
Estoflex SM should not be swallowed or in contact with skin and eyes. Wear suitable protective gloves and goggles.
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If swallowed seek medical attention immediately – do not induce vomiting.
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.