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Polyurethane Sealant For Construction Joint Caulking

Posted at: Offers to Sell and Export | Posted on: Tue 30 Jan, 2018 12:30 pm | Product Category: Polyurethane sealant [3]
 
polyurethane sealant construction joint caulking
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Surtek 3511

Polyurethane Construction Joint Sealant


1. 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.

2. Uses:

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.

3. Characteristics:

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

4. Technical Data:

Items Unit Data

1 Color Black, White, Grey

2 Non-sag properties Good

4 Appearance Uniform paste

5 Density g/ cm3 1.35±0.05

6 Tack-free time min ~50

7 Curing rate mm/24hr >3

8 Movement capability % 25

9 Shore A hardness 30±5

10 Tensile strength Mpa >2

11 Elongation at Break % ≥700

12 Tear strength MPa >6

13 Application temperature °C >-5

14 Service temperature °C -40

Typical properties after seven days cure at 25°C and 50% RH.

5. Application:

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.

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.

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.

6. Packaging:

310ml cartridge, 20 pcs/carton 600ml sausage, 20 pcs/carton

7. 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.

Note:

The information and recommendations relating to the application and end-use of COMENS’ products are given in good faith based on COMENS’ current knowledge and experience of the products when properly stored, handled and applied under normal conditions. This information must on no account be used as a substitute for necessary prior tests which alone can ensure that a product is suitable for a given use, due to the practical differences in materials, substrates and actual site conditions. Users are requested to check that they are in possession of the latest version of this document and COMENS’ is at their disposal to supply any additional information.

elina.li(a)co-mens.com

Whatsapp:+86 186 0025 7687



Company Contact:

No member photo
Contact Name: Elina Li
Company Name: Beijing Comens New Materials Co., Ltd
Email: Email
Tel: +86 186 0025 7687
Fax: + 86 010 80341745
Street Address: Yanshan, Fangshan
Beijing, Beijing 100025
China
Website: http://www.pusealant.com
Member name: pusealant
Country: China-CN China
Member Since: 30 January 2018
Total Leads: 3 pusealant Import Export Business Leads
Business focus: Polyurethane Adhesive, Polyurethane Sealants, Water Proof Coating
Chat: leave me a chat message
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Product Category: Polyurethane sealant [3]
 
 
 

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