Lantai industri: Apa perbedaan antara Epoxy dan Polyurethane

 March 25, 2021. 5:43 AM

Lantai Epoxy (EP) dan Polyurethane (PU) banyak digunakan untuk lantai industri di seluruh dunia.

Kedua sistem ini biasanya digunakan di industri berat, gudang, logistik, dan general manufaktur. Setiap kali ada pekerjaan yang melibatkan kendaraan berat, misalnya forklift, lantai PU akan menjadi pilihan.

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Lapisan lantai epoxy memiliki  kekuatan tekan yang lebih tinggi dibandingkan dengan lantai polyurethane dengan sistem coating.

Sebaliknya, lantai polyurethane dengan sistem coating biasanya hampir sekuat lantai epoxy. Namun lebih fleksibel dan lebih tahan gores. Secara umum lantai PU juga dapat menyerap benturan jauh lebih baik daripada lantai epoxy.

Karena fakta bahwa, secara umum lantai PU lebih fleksibel, ini adalah pilihan yang baik untuk substrat pada bangunan yang umumnya mengalami pergerakan, seperti tempat parkir bertingkat. Lantai  PU dengan sistem coating biasanya  juga dapat berfungsi sebagai lapisan kedap air untuk mencegah retakan beton (substrat) melewati lapisan lalu muncul retak di permukaan atas.

Dalam hal paparan bahan kimia, lantai semen polyurethane adalah pilihan yang lebih baik terutama di industri makanan seperti produksi susu, susu dan minuman di mana lantai terpapar asam laktat dan asam buah lainnya.
 
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Yang perlu diperhatikan terkait dengan paparan bahan kimia adalah adalah dapat mengubah warna lapisan. Kebocoran atau paparan bahan kimia apa pun di lantai harus dihilangkan secepatnya untuk menghindari penetrasi dan kerusakan yang dapat membahayakan lingkungan. Sistem lantai yang tepat dapat direkomendasikan dengan memahami jenis bahan kimia yang digunakan di fasilitas sebelum pemilihan jenis lantai.

Bahan material epoksi biasanya sangat sensitive terhadap kelembaban, sedangkan lantai semen-polyurethane mempunyai toleransi yang lebih baik terhadap kelembaban.
 
Kondensasi, kelembapan lantai, atau kelembapan yang sangat tinggi selama aplikasi flooring  dapat menyebabkan kerusakan parah dalam hal gelembung, lecet, lubang kecil, dan kerutan di permukaan atas serta masalah pelepasan ikatan dari substrat beton.
 
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Bahan lantai semen-polyurethane biasanya lebih cepat kering daripada bahan lantai epoksi. Jika sebuah proyek perlu diselesaikan dalam waktu singkat, lantai semen-polyurethane bisa menjadi pertimbangan. Namun, aplikasi lantai semen-polyurethane dibutuhkan pengalaman dari aplikator terkait dari waktu reaksi material yang lebih cepat dari pada umumnya. 

Ada banyak produk lantai industri di pasaran. Penting untuk dipahami bahwa harga tidak selalu menjadi satu-satunya faktor, namun juga pertimbangan akan jenis bahan yang tepat untuk fasilitas dan / atau tujuan yang diinginkan.
 

 

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Industrial flooring: What is the difference between Epoxy and Polyurethane

Epoxy (EP) and Polyurethane (PU) flooring are mostly used for industrial flooring around the world.

Both systems are commonly used in heavy-duty industries, warehouses, logistics and heavy-duty general manufacturing. Whenever there are operations that involve heavy vehicle movements, for instance, forklifts, PU coatings are considered.

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Epoxy floor coating have higher compressive strength as compared to polyurethane floor coating. Polyurethane floor coatings, on the other hand, are typically “softer”. They are more flexible and more scratch resistant. PU flooring in general can also absorb impact much better than epoxy flooring.

Due to the fact that, in general PU flooring is more flexible, they are a good choice for substrates which relates to building movement such as multi-store carparks. The flexibility of PU floor coating can also act as a waterproofing layer in order to prevent concrete (substrate) cracks to move through the coating and appear on the top surface.

When it comes to chemical exposure, Polyurethane flooring, such as Cementitious Polyurethane is the better option especially in the food industries like dairy, milk and beverage production where the floor is exposed to lactic acids and other fruit acids. 
 
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An important note on chemical exposure is that it can change the color of the coating. Any chemical leakage or exposure on the floor need to be removed as soon as possible to avoid penetration and damage which could result in danger to the environment. The right flooring system can be recommended by understanding the kind of chemicals used in the facility beforehand.

Epoxy based material flooring are sensitive to moisture presence, while the Concrete Polyurethane products having less sensitivity in terms of moisture presence.

Any condensation, floor moisture or extreme high humidity during the application of a  flooring material can cause heavy damage in terms of bubbles, blisters, pinholes and wrinkles on the top surface as well as debonding issues from the concrete substrate.
 
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Concrete Polyurethane flooring materials are usually faster curing than epoxy flooring materials. If a project need to be handed over in a short amount of time, Concrete Polyurethane flooring could be a consideration. However, applying Concrete Polyurethane flooring materials require experienced applicators due to its faster pot life.

There are many industrial flooring products in the market. It is important to understand that price is not always the only factor, more so about considering the right kind of material for the facility and/or intended purpose.
 

 
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Products mentioned in the article

MAPEFLOOR I 320 SL CONCEPT
MAPEFLOOR I 320 SL CONCEPT
Self-levelling epoxy coating with a coloured granular finish for abrasion-resistant floors. TECHNICAL DATA: Mixing ratio: comp. A : comp. B…
MAPEFLOOR I 302 SL
MAPEFLOOR I 302 SL
Two-component multipurpose epoxy formulate for industrial floors in compliance with standards applied to the drinks and foodstuffs industry…
MAPEFLOOR CPU/MF
MAPEFLOOR CPU/MF
Three-component, self-levelling polyurethane-cement mortar with high resistance to chemicals for industrial floors, applied in thicknesses…
MAPEFLOOR CPU/HD
MAPEFLOOR CPU/HD
Three-component, high-strength polyurethane-cement mortar with high resistance to chemicals for industrial floors, applied in thicknesses 6…

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