Waterproofing Mortar for Walls, Bathroom Floors DEFIX PV-1

DEFIX PROSEAL PV-1 Cementitious Waterproofing Mortar – Effective Waterproofing Solution for Walls, Floors, and Wet Areas

Water penetration is one of the leading causes of structural degradation. When water infiltrates concrete structures or brick walls, it not only causes paint peeling and mold growth but also reduces structural strength, leading to back infiltration, moss, and rapid deterioration. Therefore, choosing a high-quality waterproofing mortar from the start is a solution that significantly saves on future repair costs.

DEFIX PROSEAL PV-1 is a cementitious waterproofing mortar specially formulated for areas requiring durable waterproofing, such as bathrooms, showers, basements, rooftops, balconies, exterior walls, and many areas frequently exposed to water. The product is manufactured under strict quality control processes, creating a strong protective layer that limits water permeation into the building structure.

What is DEFIX PROSEAL PV-1?

DEFIX PROSEAL PV-1 is a cementitious waterproofing mortar with specialized active ingredients that, when mixed with water, form a homogeneous mortar paste, easy to apply on concrete and masonry surfaces. After curing, the product forms a waterproof layer that prevents water permeation, suitable for areas with low water pressure or requiring long-term waterproofing.

Unlike many conventional building mortars, PV-1 not only serves as a finishing layer but also protects the internal structure from water damage, extending the lifespan of the construction and reducing the risk of leaks.

Outstanding advantages of DEFIX PROSEAL PV-1

One of the reasons DEFIX PROSEAL PV-1 is chosen by many contractors is its combination of effective waterproofing and ease of application.

The product is easy to use; simply mix it with the correct amount of water to create a homogeneous mixture for application. The mortar layer has excellent adhesion to concrete and solid cement mortar surfaces, and can be applied with a brush, roller, trowel, or spray machine depending on the project scale.

Additionally, DEFIX PROSEAL PV-1 offers many advantages such as:

• Effective water resistance.
• High stability after curing.
• Simple application, saving time.
• Suitable for both civil and industrial projects.
• Can be applied to various building elements.
• Reduces back infiltration in walls and floors.

Practical applications of DEFIX PROSEAL PV-1

Thanks to its excellent waterproofing and adhesion, DEFIX PROSEAL PV-1 is widely used in many construction elements.

For wall construction, the product helps prevent water from permeating through the wall structure, protecting the exterior finish.

When plastering interior and exterior walls, the waterproofing mortar layer helps limit water seepage from the outside or back infiltration from behind the wall, especially suitable for walls adjacent to neighboring houses that cannot be treated from the outside.

In floor screeding areas, PV-1 is used for bathroom floors, basements, ground floors, rooftops, and many areas frequently exposed to water to protect concrete from moisture intrusion.

In tile and stone laying, the product prevents water from seeping through the underlying mortar layer, while also having high bond strength, helping to enhance the durability of the finishing system.

Additionally, DEFIX PROSEAL PV-1 also helps fill small voids in concrete structures, increasing the waterproofing capability for rooftops, balconies, and wet areas.

Technical specifications of DEFIX PROSEAL PV-1

The product is packaged in 25 kg bags, in a concrete gray powder form.

Some notable specifications include:

• Mixing ratio: approximately 4.0–5.0 liters of water per 25 kg bag.
• Dry mortar density approximately 1.60 kg/L.
• Wet mortar density approximately 2.20 kg/L.
• Compressive strength: ≥ 7.5 N/mm² according to ASTM C349.
• Waterproofing capability meets requirements according to BS EN 14891.
• Initial bond strength ≥ 0.5 N/mm².
• Reference coverage: approximately 2.5–3 kg/m²/layer depending on application thickness.

Application instructions for DEFIX PROSEAL PV-1

For optimal waterproofing effectiveness, the surface must be clean, free from dust, grease, and other impurities. Highly absorbent surfaces should be pre-saturated before application but without standing water.

After measuring the correct amount of water, add water to the bucket first, then gradually add DEFIX PROSEAL PV-1 and mix with a low-speed mixer for about 5–8 minutes until the mixture is homogeneous. The mixture should be allowed to rest for about 5 minutes for the additives to take effect before application.

The mixed mortar should be used within 3 hours. It can be applied with a trowel or spray machine, in temperatures ranging from 5°C to 35°C. After completion, clean tools immediately with clean water before the material hardens.

Important notes when using

To ensure the quality of the waterproofing layer, it is essential to adhere to the recommended mixing water quantity. Mixing too dry or too dilute can reduce strength and make application difficult.

For highly absorbent areas or joints between old and new concrete, it is advisable to reinforce with fiberglass mesh to increase crack resistance. In hot weather conditions, curing should be done by spraying water for about 7 days to allow the mortar layer to achieve optimal strength. Also, PV-1 should not be mixed with any materials other than clean water.

Why choose DEFIX PROSEAL PV-1?

An effective waterproofing solution not only keeps the building dry but also significantly reduces maintenance costs over many years of use. DEFIX PROSEAL PV-1 meets the criteria for waterproofing capability, adhesion, stability, and application flexibility.

The product is part of the DEFIX waterproofing solution system manufactured by Delta Centre Vietnam, with strict quality control before being released to the market, providing peace of mind for investors, contractors, and construction companies.

Conclusion

If you are looking for a cementitious waterproofing mortar capable of providing durable protection for walls, floors, rooftops, balconies, basements, or wet areas, DEFIX PROSEAL PV-1 is a worthwhile choice. With effective waterproofing, good adhesion, simple application, and suitability for various applications, the product helps extend the lifespan of structures and minimizes the risks caused by water infiltration.

Contact DEFIX today for suitable waterproofing solutions, detailed technical guidance, and to choose the optimal product for each construction project.