How Is Crystalline Waterproofing Applied?
Crystalline waterproofing is an innovative waterproofing technology that penetrates the pores of concrete and becomes an integral part of the structure. When applied correctly, it provides long-lasting and permanent protection. Below is a step-by-step guide to the crystalline waterproofing application process.
1. Surface Preparation
Cleaning
All dust, oil, paint, and loose particles must be completely removed from the concrete surface.
Repairing Cracks and Voids
Cracks should be repaired with suitable repair mortar, and any voids or cavities should be properly filled.
Surface Profiling
The surface should be roughened to improve penetration and adhesion of the crystalline waterproofing material.
This is the most critical stage of the application process. A properly prepared surface allows the crystalline compounds to penetrate deeply into the concrete.
2. Moistening the Surface
Crystalline waterproofing works through a reaction with water. Therefore, the concrete surface must be dampened before application. However, there should be no standing or excess water on the surface.
3. Material Preparation
- The product is typically supplied in powder form and is mixed only with water.
- The consistency should be adjusted according to the chosen application method, such as brush, roller, or spray.
- Achieving a homogeneous mixture is essential for successful application.
4. Application
- The material can be applied using a brush, roller, or spray equipment.
- It is generally applied in two coats. The second coat should only be applied after the recommended waiting period and before the first coat is fully cured, according to the manufacturer's instructions.
- During application, the material penetrates the concrete and forms crystalline structures within the pores and capillaries.
5. Curing and Protection
- After application, the surface should be kept moist for at least 48 hours and protected from direct sunlight.
- During the curing process, the crystals continue to grow, filling capillary pores and micro-cracks, thereby preventing water penetration.
Important Application Considerations
- Application should only be carried out at temperatures above +5°C (41°F).
- Do not apply on frozen surfaces or during extremely hot, rainy, or adverse weather conditions.
- Follow the manufacturer's recommended mixing ratios to ensure maximum performance.
Why Choose Crystalline Waterproofing?
Permanent Protection
Since it becomes part of the concrete structure, it does not peel, blister, or delaminate over time.
Maintenance-Free Solution
Once properly applied, no additional waterproofing maintenance or renewal is typically required.
Resistance to Positive and Negative Water Pressure
Provides effective protection from both the water-exposed side and the opposite side of the structure.
Frequently Asked Questions (FAQ)
1. Can crystalline waterproofing be applied in a single coat?
No. It is generally applied in two coats, with a specified waiting period between applications.
2. What application methods can be used?
It can be applied using a brush, roller, or spray equipment.
3. Should the surface be protected after application?
Yes. The surface should be kept moist and protected from direct sunlight for the first 48 hours after application.