Water is a valuable resource for all living matter, including micro-organisms. For this reason, its storage for residential and commercial setups becomes all the more essential. Generally, a leak and contaminated-free environment is used to conserve water. And, a tank is the most likely solution. However, it needs to be coated with a waterproofing membrane for extended use.

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Understanding the Need for Top Tank Waterproofing

Storage tanks, whether made of plastic, concrete, or metal, are susceptible to water seepage due to weathering, structural stresses, and poor quality. Over time, cracks, broken seals, and joint gaps can develop, leading to leakage and compromised water quality. The waterproofing process, therefore, becomes a major requirement to maintain structural integrity and ensure long life.

Types of Top Tank Waterproofing Solutions

Polyurethane Coatings

Because of its corrosion-resistance, durability, and eco-friendly nature, polyurethane is a preferred material for covering water tanks. Besides, it can sustain high loads together with resisting mold and fungus.

Epoxy Coatings

Epoxy coatings are suitable for new and in-use water tanks, protecting against various natural and synthetic elements like chemicals, high-temperature crude oil, and wastewater. For high quality, hire a reliable team of experts from Sky Chemical Services, a renowned name in the waterproofing industry in Pakistan.

Cementitious Waterproofing

Cementitious waterproofing relates to the use of cement-based mixture for surface layering, filling pores and hairline cracks, preventing water seepage to a large extent. However, proper surface preparation is essential in this regard.

Liquid Applied Membranes (LAM)

LAMs can be applied to different surfaces, including concrete, metal, and plastic. They form a flexible waterproofing layer that adapts to structural movements perfectly. Some of its advantages are:

  • Cost-Effective
  • Seamless
  • Durable
  • Quick Curing
  • Easy Application

Fiberglass Waterproofing

Fiberglass reinforcement provides strength and durability to the tank structure while preventing water penetration. It is used in conjunction with resin systems.

Steps Involved in Top Tank Waterproofing

Surface Preparation

Clean the concrete tank surface to clear dirt, grease, and loose particles. Repair any visible cracks or damages before applying the waterproofing solution.


A primer is applied to enhance adhesion between the concrete tank surface and the waterproofing material, ensuring better performance and longevity.

Application of Waterproofing Solution

Before applying the waterproofing solution, read the manufacturer’s instructions. Ensure uniform coverage and proper sealing of joints and seams to prevent water ingress.

Curing & Drying

Allow sufficient time for the waterproofing material to cure and dry before refilling the tank.

Factors Influencing Top Tank Waterproofing Solutions

Tank Material

Different materials require specific waterproofing solutions. For instance, concrete tanks may need cementitious coatings, while plastic tanks might benefit from polyurethane coatings. 

Environmental Conditions

Consider factors like temperature variations, UV exposure, and chemical exposure when selecting the appropriate waterproofing material. Some solutions are better suited for harsh environments than others.

Maintenance and Inspection

Regular inspection and maintenance help find damage or wear symptoms in the waterproofing layer, allowing for quick repairs.

Benefits of Top Tank Waterproofing

Prevention of Water Contamination

Proper waterproofing safeguards stored water against contaminants, preserving its quality for consumption or other uses. Waterproofing solutions enhance the tank’s structural strength by preventing water-induced damages like cracks and corrosion.


Quality waterproofing services can reduce the need for frequent repairs and replacements, saving money in the long run.

Top tank waterproofing is a critical aspect of maintaining water quality and ensuring the longevity of storage systems. Choosing the right waterproofing solution based on the tank material, environmental factors, and proper application techniques is essential.

Regular maintenance and inspections further contribute to the effectiveness of these solutions. By prioritizing top tank waterproofing, individuals and industries can safeguard their water supply, promote sustainability, and maintain the integrity of their storage infrastructure for years to come.

Connect with Sky Chemical Services for premium-quality concrete tank waterproofing services!

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