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Ceramics is one of the oldest and most noble materials in human history. Derived from the Greek term “Kéramos” (“burnt clay”), ceramics refers to the art of producing artistic, utilitarian or decorative objects, using clay as the main raw material.

The process involves shaping the ceramic paste, applying a ceramic glaze (white or colored), and firing at high temperatures. This thermal stage gives the material high strength, durability, and stability. As a result, the resulting products exhibit excellent impermeability, high hardness, and remarkable mechanical properties.

Furthermore, the ceramic surface type makes cleaning and maintenance easier, while helping to reduce the proliferation of fungi and bacteria, making it ideal for applications in environments that require high hygiene standards.

So preserve the original shine of the glazed surfaces, Whether white or colored, throughout the product's useful life, we recommend careful handling and proper cleaning, as per the guidelines below.

At Arch Valadares the excellence of our products begins with the choice of materials and extends to their durability and ease of maintenance. The glazed ceramic surfaces we produce are recognized for their resistance, impermeability, durability, and antibacterial properties, ideal for environments that require high hygiene standards.

Material Detergents Cleaning kit Other recommandations Not dropping objects Attention Acid and basic weakNeutral soap Hydrofluoric acids Abrasives Abrasives Cleaning cloth Brittle Type of product Ceramics
Regular cleaning

To preserve the shine and integrity of the glazes, we recommend:

  • Use neutral, non-abrasive detergent with a soft cloth or sponge.
  • Rinse with clean water and dry with a soft cloth.
  • Avoid products with a pH higher than 10 and abrasive materials.

Dirt stains or limescale deposits can form when cleaning is infrequent or when water quality is inadequate. In these situations, using neutral detergent may be insufficient, and the following precautions are recommended: removal solutions:

Limestone Removal

Limescale deposits are commonly observed in urinal and toilet siphons and can change the surface color:

Prevention: Use a toilet brush regularly to prevent the formation of mineral residues;

In more persistent cases:

1. Remove all water from the affected area;

2. Apply one of the following solutions:

  • Hydrochloric acid diluted to 50% (domestic use): Leave to act for up to 10 minutes;
  • White vinegar (acetic acid ~5%): Leave to act for 1 hour.

3. Rinse and dry with a clean cloth.

Avoid contact with metal surfaces and wear protective gloves. Never mix different products.

Persistent Dirt Removal

In cases of difficult stains:

1. Prepare a solution of 2 parts sodium bicarbonate and 1 part hydrogen peroxide (Volume 10 or 20);

2. Apply the solution directly to the affected areas;

3. Leave to act for 1 hour, rinse and dry with a clean cloth.

Avoid contact with metal surfaces and wear protective gloves. Never mix different products.

ARCH SA promotes sustainable practices, encouraging the use of effective and environmentally friendly cleaning solutions:

  • White vinegar + water (1:1);
  • Mixture of baking soda + neutral detergent;
  • Certified biodegradable products.


With simple, regular care, our products stay looking like new for many years.

The toilet seats ARCH SA designed in Termodur – both in white and colored – stand out for their excellent mechanical properties, wear resistance e high antibacterial behavior.

This material obtained by Thermocompression combines durability, dimensional stability, moisture resistance, wear, and ease of maintenance.

Although Termodur offers good thermal resistance, it should not be exposed to direct contact with hot objects, as it can compromise the integrity of the top surface. Despite its robustness, the material can chip or fracture when subjected to strong impacts or heavy objects falling.

At Arch Valdares, the excellence of our toilet seats begins with the careful selection of materials. To ensure their durability and good performance, we recommend the following practices:

Material Detergents Cleaning kit Other recommandations Attention Acid and BasicAcetoneAlcoholAmmoniaAbrasives Do not place on the surface of the cover Do not force the soft-close mechanism Abrasives Cleaning cloth Type of product Metallics PlasticsResins Neutral soap
Regular cleaning

It is recommended to carry out regular cleaning of the Termodur toilet seats, in order to avoid the accumulation of dirt and the appearance of spots, namely yellowish spots, often resulting from a lack of adequate maintenance.

  • Use neutral detergent diluted with warm water, applied with cloth ou soft sponge;
  • Rinse with clean water, removing any detergent residue;
  • Dry carefully with a dry, soft cloth, avoiding watermarks and preserving the surface shine;
  • In the end, the hinges must be dry with the help of a dry cloth.

Dirt stains or limescale deposits can form when cleaning is infrequent, when water quality is inadequate, or when using non-recommended products. In these situations, using neutral detergent may be insufficient, and the following precautions are recommended: removal solutions:

Removing Persistent Stains

In cases of difficult stains:

1. Prepare a paste of 2 parts baking soda and 1 part hydrogen peroxide (Volume 10 or 20);

2. Apply the solution directly to the affected areas;

3. Rub with gentle circular movements;

4. Leave to act for 5 minutes, rinse and dry with a clean cloth.

Avoid contact with metal surfaces and wear protective gloves.

Cleaning with Clip-Off

Clip-off fasteners make it easier to remove the toilet seat, ideal for more thorough cleaning and simplified maintenance.

Its removal does not require the use of tools, it only requires pressing or releasing the fixing mechanism.

To ensure proper functioning and increase the durability of the toilet seats, the guidelines below must be followed:

Check the hinges regularly:

  • Confirm that the hinges are well fixed e no breaks between the top and the dishes.
  • Loose hinges compromise the stability of the top and the cushioned fall operation (soft-close).
  •  
How to test:
  1. With the toilet seat (lid and frame) in the open position, gently move it side to side. If the top is installed correctly, it should remain firmly in place, without any play or movement during this test.
  2. If there is any play, the hinges should be readjusted as recommended by the manufacturer. Ignoring this issue can cause irreversible damage to the soft-close.

Causes for the toilet seat no longer performing the soft-close function:

1 - Incorrect use

Misuse is the main cause of soft-close failures.

If the top worked well initially but stopped working properly after a few weeks or months, the most likely cause of the failure is related to incorrect use of the top.

Force the lid to close, toilet, or drop it suddenly are some of the actions that can damage the system's internal components.

Avoid:

  • Drop the lid suddenly
  • Force manual closing
  • Slam the lid against the toilet

When this happens, the only solution is to replace the internal cartridges. To do this, consult your distributor to identify the correct part number and purchase the new part.

2 - Improper installation

Small gaps in the fasteners may not be noticeable immediately after installation, but they tend to appear with daily use and repeated movements. These gaps compromise the stability of the top and negatively affect the operation of the soft-close system.

It's crucial to correct them as soon as they're identified. If ignored, they can cause irreversible damage to the mechanism's internal cartridges.

A well-installed top must remain stable, without any gaps or abnormal lateral movements.

Regular cleaning

Keep the top and soft-close system clean and free of debris, following the manufacturer's recommendations. This helps prevent limescale or moisture buildup, which can compromise the soft-close mechanism's operation.

Toilet seats with a colored finish require extra attention to preserve their appearance and durability.

Therefore, during installation, it is essential to ensure careful handling to avoid scratches or damage to the finish, especially in visible areas or areas subject to direct contact.

It is recommended to use adequate protection during transport and assembly to prevent scratches.

Regular cleaning
  • Use neutral, non-abrasive detergent with a soft cloth or sponge.
  • Never use aggressive products or abrasive utensils.
  • Clean regularly to prevent residue build-up and preserve the finish.

Here you will find installation and maintenance videos of our products.
Subscribe to our Youtube channel.

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System Rimless

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How to solve the problem of a timed tap that won't stop pouring water

How to install a Opus toilet

How to uninstall a Tagus toilet

The products of ARCH SA are developed with a focus on longevity and environmental responsibility.

Although we offer a 20-year warranty on most of our ceramic products, ARCH SA, these are developed to overcome this deadline, achieving a minimum useful life of 40 years. This is possible thanks to the excellence of the materials used and the high manufacturing standards adopted.

As part of its commitment to sustainability and the circular economy, ARCH SA adopts concrete measures to avoid premature product replacement and unnecessary consumption of new natural resources.

Among these initiatives, the most notable is its Specialized Technical Assistance Service, providing maintenance, repair and component replacement solutions, whenever technically feasible. This way, it is possible to significantly extend the useful life of products and reduce their environmental impact.

Maintenance Solutions
Maintenance Solutions
Repair Solutions
Repair Solutions
Component replacement
Component replacement

In addition to repair, many products can be optimized or adjusted to become more efficient, thus avoiding their complete replacement — a smart approach from both an economic and ecological point of view.

ARCH SA makes available to its customers a dedicated technical team, ready to support and guide you in the best solution for each case. We believe that preserving the environment is a shared responsibility, and we are committed to doing our part — with solutions that combine quality, innovation, and respect for the planet.

For more information, contact us through the usual channels.