waterproofing primer

Cementitious Waterproofing Primers are advanced, moisture-resistant, fast-drying, polyurethane-based materials with anti-corrosion properties thanks to their zinc and mica iron oxide (MIO) content.

These materials provide cathodic (galvanic) protection and form a long-lasting barrier that protects steel surfaces from corrosion. Rapid products are available in several options to suit various applications, whether for metal or concrete surfaces, depending on the insulation requirements and condition required.

What is waterproofing primer?

Cementitious waterproofing primer is a base material applied to surfaces before applying the main waterproofing layer. It acts as a preparatory layer to help enhance the adhesion of the waterproofing material to the surface. It seals pores and microscopic cracks in concrete or brick, reducing moisture absorption and preventing future water leakage.

It also contributes to improving insulation efficiency and extending its lifespan, making it a necessary step to ensure the effectiveness of waterproofing systems on roofs, tanks, foundations, and walls.

Advantages of using a water-based primer

• Deep Penetration: Penetrates the microscopic pores of concrete and cement surfaces to ensure a strong bond from within.
• High adhesion: Acts as a strong bridge between the surface and subsequent applied insulation layers.
• Surface Reinforcement: Strengthens weak and damaged surfaces and increases their durability.
• Quick drying: It has a suitable drying speed that allows insulation works to be completed without delay.
• Moisture resistance: Provides a primer that protects against the effects of low humidity.
• Full compatibility: Compatible with all types of bituminous insulation materials, whether adhesive, liquid or flexible.
• Ease of use: It can be applied in multiple ways such as brush, roller or spray.

Steps for applying waterproofing primer correctly

For best performance, follow these steps:

• Surface preparation: Clean the surface from dust, oil, grease and foreign materials.
• Defect Treatment: Repair cracks, gaps and nesting in concrete.
• Product Stirring: Stir the primer well before use to ensure the ingredients are homogeneous.
• Application: Apply an even coat using a brush, roller, or suitable spray equipment.
• Waiting time: Allow the primer to dry completely (when it is no longer sticky to the touch).
• Follow-up: Apply bituminous insulation layers within 24 hours of the primer drying.

Our company's services include supplying and applying waterproofing primer.

Rapid offers comprehensive services in supplying and applying waterproofing primers with the highest levels of quality and efficiency. We provide the finest approved types that ensure deep penetration into the pores to achieve the best possible adhesion for subsequent insulation layers.

We also have a specialized team capable of implementing all application stages according to the correct technical standards, contributing to enhancing the durability of surfaces and protecting them from moisture and leaks for years to come. Thanks to our extensive experience and commitment to precision, we guarantee our clients comprehensive waterproofing solutions, from selecting the appropriate product to highly professional implementation