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FOR APARTMENT, 4PART TECHNOLOGY, 4ADVANTAGE

SRU Urethane

4A SYSTEM
Specializing in the research and development

of smart patented technology for apartment painting and waterproofing

SRU Urethane

Urethane roof waterproofing with supermicro fiber reinforcement

Urethane waterproofing method using a base adjustment material with supermicro fibers and urethane mixed with supermicro fibers in a weight ratio of 1000:1 to 1000:2


Patent certificate

[ Features ]

Adding supermicro fibers to urethane or epoxy significantly improves tensile strength, elongation, and hardness, suppressing summer bubbling and pinhole defects. There is no re-cracking problem of urethane waterproofing materials, and the material cost is similar and construction cost is reduced compared to conventional KS-exposed urethane waterproofing materials.

[ Patent No. 10-1643519 ] 

Base Adjustment Material Using Super Microfiber

[ Patent No. 10-1643520 ] 

Polyurea Waterproof Coating Method Using Super Microfiber Base Adjustment Material

SRU urethane technology is


This refers to the urethane waterproofing method reinforced with super microfibers. 

It is similar to the traditional method of adding straw when making bricks, 

which made them stronger and more durable.



This technology prevents re-cracking and summer pinholes, 

which commonly occur in conventional urethane waterproofing materials. 

It also reduces construction costs while improving urethane performance and quality. 

Due to its outstanding advantages, it has been awarded the Grand Prize 

in the Technology Awards by the Specialized Construction Association.


SRU 우레탄
REQUIREMENTS FOR CONSTRUCTION

Requirements for urethane on rooftops


01.
Determine the temperature of the concrete.

  If the concrete floor is hot before the roof urethane is applied, there is a high probability of pinhole defects and lifting.


 Due to the hot heat, the heat from the concrete layer is heated up to the thickening layer, and the thinner component of the urethane layer is vaporized due to the heat, and since it tries to escape from the thickening layer, bubbles rise in the area where the topcoat is applied, and this is called a pinhole phenomenon.  


※ This is why pinholes are most common in roof urethane construction during the summer months of June through August.


Pinholes
Pinholes
Pinholes
Pinholes
Pinholes
Pinholes
Fluttering and flaking
Fluttering and flaking
Fluttering and flaking
Fluttering and flaking
Fluttering and flaking
Fluttering and flaking

02.
Check for bad concrete floor surfaces.

  Before applying urethane, make sure that the concrete surface is well prepared.


  After removing the existing urethane, cracks and deteriorated areas of the concrete floor should be repaired and treated as necessary to make the surface clean before applying urethane to prevent future defects


03.
Determine the moisture content of the concrete.

  To reduce the chance of defects, urethane should be applied when the concrete moisture content is within 7%.


  If the moisture content of the concrete is higher than the standard value, other defects such as urethane lifting may occur.


Water content: The percentage of water weight in the total weight of the material


High-quality urethane is ensured,

with enhanced performance and durability.

SRU 우레탄
“Superior Rooftop Urethane Flooring

SRU Urethane”

SRU urethane is a better performing urethane.

Urethane is a better urethane, and only a better urethane can create a superior quality rooftop floor.


SRU Urethane

SUPER MICRO FIBER REINFORCED URETHANE

Patent No. 10-1643519

Patent No. 10-1643520

 

SRU urethane is a performance urethane that blends super micro fibers with urethane to provide a layer of reinforcement over traditional urethane.


The new technology construction of the patented product, which complements the shortcomings of existing rooftop urethane flooring and improves its advantages, minimizes the occurrence of defects. In particular, the performance of urethane becomes stronger by mixing super micro fibers without the need for special processes, processing and treatment to strengthen the performance of the product. In the end, urethane with stronger performance has a stronger response to external pressure. Therefore, it is a patented technology with a low unit cost but very high performance.

Super microfiber blends

for even more performance 


SRE Urethane is a blend of supermicro fibers that minimizes summer pinhole formation, and the microscopic fibers inhibit pinholes. The enhanced performance also improves abrasion resistance and durability, and is more resistant to external pressures, keeping your underground parking garage floor healthier and longer.


슈퍼 마이크로 섬유
SUPER MICRO FIBER
슈퍼 마이크로 섬유
SUPER MICRO FIBER
슈퍼 마이크로 섬유
SUPER MICRO FIBER
슈퍼 마이크로 섬유
SUPER MICRO FIBER

SRE EPOXY SUPER MICRO FIBER 


Patented, groundbreaking, practical epoxy reinforcement technology that blends small, thin, and fine fibers to enhance the performance of epoxy


The principle of adding straw when making ocher bricks


SRE Urethane follows the same principle used in the past when making bricks stronger and more durable by adding straw in the traditional method.  


To create a stronger and higher-performing epoxy, 

we have incorporated super micro fibers.

SRU Urethane
Improving pinholes in urethane construction


SRU urethane has the advantage of improving the pinhole phenomenon that occurs in traditional summer urethane construction.

The pinhole phenomenon can be prevented because the super micro fibers inhibit pinholes, reducing defects during construction and improving waterproofing performance.


Pinholes
Pinholes
SRU urethane prevents pinholes
SRU urethane prevents pinholes


The stronger urethane, SRU urethane is


 

Higher water resistance

More water-resistant urethane than regular urethane

 

Fewer cracks and

Resistant to external cracking

 

Minimize defects !

Fewer urethane defects and


 

Shorten the construction period!

Reduce construction time with fewer defects.

SRU  Urethane
Waterproof technology adopted by Samsung Electronics and POSCO


SRU urethane has a track record of installations on the rooftops of Samsung Electronics dormitories.


When Samsung Electronics commissioned POSCO A&C to oversee building maintenance and repair,

the SRU urethane technology was recommended and adopted by POSCO A&C to improve the pinhole defects that often occur in general urethane waterproofing.

SRU Urethane
Products conforming to Korean industrial standard KS

<KS F 3211-1 Class : Painted waterproofing materials for construction >


SRU Urethane is an excellent waterproofing material that exceeds the performance of the Korean industrial standard KS standard. 

KS standard is a Korean industrial standard revised after deliberation by the Industrial Standards Council in accordance with the relevant provisions of the Industrial Standardization Act. SRU Urethane is a product that has passed various regulatory provisions and secured quality.

How different is SRU urethane from regular urethane?

         방수재종류
비교항목

KS 노출 우레탄 방수재우수한 SRE 에폭시
인장강도
(N/㎟)		3.13.7
파단 시 신장률
(%)		578906
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Super Microfiber Reinforced High-Quality Urethane, SRU Urethane. 

We will create a more durable and defect-free rooftop for you.

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COMPANY

4A SYSTEM, Inc.  |  CEO . Sojung Kim 

BRN . 163-87-02106 

ADRESS . (22744) 133, Hodusan-ro, Seo-gu, Incheon, Republic of Korea  

E-MAIL .  jeillwnp@hanmail.net

ACC . IBK Industrial Bank of Korea  491-072485-04-010 

OFFICE CENTER

TEL . 032-937-7496 |  FAX . 032-937-7497

Business Hours: Mon–Fri 09:00–18:00 | Lunch Break: 12:00–13:00 | Closed: Sat, Sun & Public Holidays 

Copyright ⓒ 4A Systems, Inc. All Rights Reserved.

Terms & Conditions  I  Privacy Policy 

COMPANY

4A SYSTEM, Inc. | CEO . Sojung Kim 

BRN . 163-87-02106 

ADRESS . (22744) 133, Hodusan-ro, Seo-gu, Incheon, Republic of Korea 

E-MAIL .  jeillwnp@hanmail.net

ACC . IBK Industrial Bank of Korea 491-072485-04-010 


OFFICE CENTER

TEL . 032-937-7496  I  FAX . 032-937-7497

Business Hours: Mon–Fri 09:00~18:00  I  Lunch Break 12:00~13:00

Closed: Sat, Sun & Public Holidays

Terms & Conditions  I  Privacy Policy

Copyright ⓒ 4A Systems, Inc. All Rights Reserved.