- Product Details
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Quick Details
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EINECS No.:
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231-545-4
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Place of Origin:
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Beijing, China
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Brand Name:
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COMENS
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Model Number:
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Surtek 3511
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Type:
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concrete joint caulking adhesive
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Color:
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Whit black grey
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Appearance:
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Fine , can be polished
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Base Chemical:
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Polyurethane
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Adhesion:
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Good
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Sagging:
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No Sagging
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Application:
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Applicator gun
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Material:
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Polyurethane
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Keywords:
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concrete joint caulking adhesive
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Certificate:
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MSDS, ISO
Quick Details
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CAS No.:
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9009-54-5
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Other Names:
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pu joint sealant
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MF:
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C7H8OSi)m.(C2H6OSi)n
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EINECS No.:
-
231-545-4
-
Place of Origin:
-
Beijing, China
-
Brand Name:
-
COMENS
-
Model Number:
-
Surtek 3511
-
Type:
-
concrete joint caulking adhesive
-
Color:
-
Whit black grey
-
Appearance:
-
Fine , can be polished
-
Base Chemical:
-
Polyurethane
-
Adhesion:
-
Good
-
Sagging:
-
No Sagging
-
Application:
-
Applicator gun
-
Material:
-
Polyurethane
-
Keywords:
-
concrete joint caulking adhesive
-
Certificate:
-
MSDS, ISO
Description
Surtek 3511 is a low modulus one-component moisture curable polyurethane sealant. It is non sagging,
of good strength and elasticity. It is weather resistant. The product is manufactured in accordance with
ISO9001 and ISO14001 systems.
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Technical Data Sheet of Surtek 3511:
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Appearance
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Uniform Paste
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Color
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Black, White, Grey
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Density
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1.35 ± 0.05 kg/l
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Cure mechanism
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Moisture-curing
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Tack-free time*
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50
min
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Rate of cure*
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~3 mm per 24 hrs
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Shore A hardness
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30±5
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Tensile strength
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≥2.0 Mpa
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Elongation at break
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≥700%
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Tear strength
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≥6 N/mm
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Service temperature (continuous)
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-40°C to +90°C
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Advantages
1) One component, easy to use
2) Non sagging
3) Good adhesion to a wide range of substrates
4) Primerless for most substrates
5) Excellent elasticity
6) Good weather resistance
2) Non sagging
3) Good adhesion to a wide range of substrates
4) Primerless for most substrates
5) Excellent elasticity
6) Good weather resistance
Application
Surtek 3511 is used as a general purpose sealant for sealing joints in building construction such as
movement and construction joints in concrete, such as airfield pavements, brick, wood, metal and etc. t.
movement and construction joints in concrete, such as airfield pavements, brick, wood, metal and etc. t.
Application Note
1) Joint Design
Correct joint design can assure the lifetime of buildings and sealants. To keep the flexibility of the
joints, the minimum width of the joints is 5mm. The depth is 1/2 of the width. The recommended width
of the joint is 80-100% of the width if the width is less than 10mm.
2) Surface Treatment
The surface should be clean and dry. The concrete placement should be dried for 28 days.
After rainfall, it should be aired for 2-3 days. The water content of the substrates should be lower than
9%. Dryness and cleanness can assure the bonding strength to the substrates.
The surface should be clean without dust, oil or loose layers. Metal surface should be of no oil, rusty
stains. If the surface is with cladding material or protective layer, we suggest test the sample.
3) Applying the sealant
Use the brush to clear the surface to make the joint achieve the above requirement.
For good appearance, adhesive tape can be used to paste on two sides of the joint. The edges of the tape
should be even with the joint edges.
Pierce the nozzle with an appropriate size at 45°angle. Put the sealant into an applicator gun and
squeeze the trigger uniformly into the joint. The sealant should be filled into the joint and overflow a
bit in order to avoid hollow space in the sealant.
4) Appearance Treatment
Use the scraper and moisten a bit water to press and scrape flat the surface of the sealant. Take off the
adhesive tape. Do not touch the surface of the sealant before within its tack-free time.
Correct joint design can assure the lifetime of buildings and sealants. To keep the flexibility of the
joints, the minimum width of the joints is 5mm. The depth is 1/2 of the width. The recommended width
of the joint is 80-100% of the width if the width is less than 10mm.
In order to assure the designed movement capability of the sealant, we should use back lining.
Recommended depth of the joint is no less than 5mm.
Recommended depth of the joint is no less than 5mm.
2) Surface Treatment
The surface should be clean and dry. The concrete placement should be dried for 28 days.
After rainfall, it should be aired for 2-3 days. The water content of the substrates should be lower than
9%. Dryness and cleanness can assure the bonding strength to the substrates.
The surface should be clean without dust, oil or loose layers. Metal surface should be of no oil, rusty
stains. If the surface is with cladding material or protective layer, we suggest test the sample.
3) Applying the sealant
Use the brush to clear the surface to make the joint achieve the above requirement.
For good appearance, adhesive tape can be used to paste on two sides of the joint. The edges of the tape
should be even with the joint edges.
Pierce the nozzle with an appropriate size at 45°angle. Put the sealant into an applicator gun and
squeeze the trigger uniformly into the joint. The sealant should be filled into the joint and overflow a
bit in order to avoid hollow space in the sealant.
4) Appearance Treatment
Use the scraper and moisten a bit water to press and scrape flat the surface of the sealant. Take off the
adhesive tape. Do not touch the surface of the sealant before within its tack-free time.
Property of the Sealant Layer
1. The product cures with the moisture in the air, which forms a high strength elastic structural
sealant
layer.
2. The sealant layer is resistant to water, weak acid, neutral cleaner which do not contain chlor-alkali. It can shortly resistant to fuel, oil, fat, and crude oil. But it should be avoided strong acid, lye, bleach and other
organic solvent.
3
. The sealant layer can be trimmed before curing. But after curing, it can only be removed by cutters.
Specification
310ml cartridge, 20 pcs/carton
600ml sausage, 20 pcs/carton
600ml sausage, 20 pcs/carton
Storage and Shelf Life
The shelf life of polyurethane sealant is related to the temperature and humidity of the environment.
The recommended storage temperature is 5-25°C, humidity is ＜50% RH. It is strictly prohibited that
the transportation or storage temperature is over 30°C or the humidity is over 80% RH. When stored at
the recommended conditions in original, unopened containers, this product has a shelf life of 9 months.
The recommended storage temperature is 5-25°C, humidity is ＜50% RH. It is strictly prohibited that
the transportation or storage temperature is over 30°C or the humidity is over 80% RH. When stored at
the recommended conditions in original, unopened containers, this product has a shelf life of 9 months.
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